10 Best AI Assistant Tools in 2026

Pricing and ratings can vary by plan, region, product edition, and review availability. Gartner ratings are included only where Gartner provides a directly comparable product-level rating; otherwise, they are shown as.

Best AI Assistant Tools

Let’s take a closer look at the top AI assistant tools, including their key features, pricing, best use cases, and what makes each one stand out.

#1 ChatGPT

ChatGPT is a general-purpose AI assistant developed by OpenAI that helps users work with information, create content, solve problems, conduct research, and complete a wide range of knowledge-work tasks through natural-language conversations. It can handle follow-up questions and maintain conversational context, making it useful for workflows that require several steps rather than isolated prompts.

The platform has expanded well beyond text-based question answering. Depending on the plan, ChatGPT can analyze uploaded files, search the web, conduct deeper research, generate images, support voice conversations, and assist with coding. Users can also create customized GPTs for more specialized tasks, giving the platform flexibility across personal productivity, research, content, education, and business workflows.

For organizations, ChatGPT can also be deployed through business and enterprise offerings, while developers can use OpenAI’s API to build AI-powered applications. This combination of broad capabilities, customization, and integrations makes ChatGPT one of the leading AI assistant platforms for general-purpose use.

Key Features

• Natural-language conversations: Handle questions, instructions, follow-ups, and multi-step discussions through conversational interaction.
• Deep Research: Perform multi-step research tasks and synthesize information from multiple sources.
• File analysis: Upload supported documents and files to extract information, summarize content, and answer questions.
• Web search: Access current web information for queries that require up-to-date knowledge.
• Coding assistance: Generate, explain, debug, review, and modify code across different programming languages.
• Custom GPTs: Create specialized AI assistants with customized instructions, knowledge, and capabilities.
• Image generation: Generate and modify images using natural-language instructions.
• Voice conversations: Interact with ChatGPT using voice in supported applications.
• Projects: Organize conversations, files, and instructions around ongoing work.
• Business integrations: Connect supported applications and organizational information for workplace workflows.

Best For

ChatGPT is best for individuals, teams, and businesses looking for a versatile AI assistant that can support multiple workflows from a single platform. It is particularly useful for research, writing, coding, analysis, brainstorming, learning, and general productivity rather than being limited to one business function.

Why Choose ChatGPT?

ChatGPT combines a broad range of AI capabilities in one interface, allowing users to move between research, writing, analysis, coding, and creative tasks without switching between specialized tools. Its combination of multimodal capabilities, customizable GPTs, file analysis, web research, and integrations also makes it suitable for workflows that extend beyond basic conversational assistance.

Pricing

ChatGPT offers a Free plan. ChatGPT Plus costs $20/month, while ChatGPT Go is available for $8/month in the U.S. Paid Pro and business-oriented plans are also available, with API usage billed separately.

G2 Rating: 4.6/5 from 2,524 reviews on G2.

Gartner Rating: 4.5/5 from 33 ratings.

#2 Claude

Claude is an AI assistant developed by Anthropic for writing, research, analysis, coding, and other knowledge-work tasks. It is designed to handle natural-language conversations while maintaining context across extended interactions, making it useful for users working through complex questions, documents, and projects rather than only seeking quick answers.

The platform supports a broad range of AI assistant capabilities, including document analysis, content creation, coding, research, and structured problem-solving. Claude can also work with projects and connected tools, while its newer capabilities extend into agentic workflows that can help users complete multi-step tasks. This makes it relevant to both individual productivity and professional knowledge work.

For businesses, Anthropic provides Claude through Team and Enterprise offerings, while developers can access Claude models through the Anthropic API. The platform is also covered by Gartner in its Enterprise AI Assistants research, where Gartner describes Claude as an enterprise AI assistant supporting research, content creation, analysis, and collaboration workflows.

Key Features

• Conversational AI: Handle questions, instructions, follow-up requests, and multi-step conversations with contextual responses.
• Document analysis: Process supported files and help users summarize, compare, interpret, and extract information from lengthy documents.
• Projects: Organize conversations, instructions, and relevant knowledge around specific workstreams or subjects.
• Writing assistance: Draft, edit, rewrite, summarize, and improve business and creative content.
• Coding assistance: Generate, explain, review, troubleshoot, and modify code across development workflows.
• Artifacts: Create and interact with documents, code, visualizations, and other structured outputs within conversations.
• Research capabilities: Analyze information and support research-oriented workflows through supported search and tools.
• Extended context: Work with substantial amounts of information while maintaining context across complex tasks.
• Integrations and connectors: Connect Claude with supported applications and information sources for more contextual assistance.
• Agentic workflows: Support multi-step task execution through newer Claude capabilities and connected tools.

Best For

Claude is best for professionals, teams, researchers, writers, and developers who need an AI assistant for detailed knowledge work. It is particularly suited to document-heavy workflows, writing, analysis, research, coding, and tasks where maintaining context across a longer interaction is important.

Why Choose Claude?

Claude combines conversational assistance with strong support for document-based work, writing, analysis, and coding. Its project-based workflows, extended context capabilities, artifacts, and growing support for connected tools make it useful for users who want to move from individual prompts toward more structured AI-assisted workflows.

Pricing

Claude offers a Free plan. Claude Pro costs $20/month, or $17/month when billed annually. Anthropic also offers Max plans starting at $100/month, while Team and Enterprise plans are available for organizations with additional features and usage options.

G2 Rating: 4.6/5

Gartner Rating: 4.6/5 from 9 ratings

#3 Google Gemini

Google Gemini is an AI assistant developed by Google for general-purpose conversations, research, content creation, coding, analysis, and productivity tasks. It is built around Google’s multimodal AI models, allowing users to work with different types of information, including text, images, audio, video, and code.

Gemini’s biggest distinction is its connection with the Google ecosystem. Depending on the plan and product, users can work with Gemini alongside Gmail, Google Docs, Drive, Meet, and other Google services. It also supports research-oriented workflows, file analysis, image generation, coding assistance, and specialized experiences such as Gemini Notebook.

For businesses and advanced users, Gemini extends beyond the consumer assistant through Google’s AI and cloud ecosystem. Organizations can use Gemini capabilities across workplace applications, while developers can build applications using Google’s models and APIs. This makes Gemini one of the leading AI assistant platforms for users already working within Google’s ecosystem.

Key Features

• Multimodal AI: Understand and work with text, images, audio, video, and code.
• Deep Research: Conduct multi-step research and produce structured reports from gathered information.
• Google Workspace integration: Work with supported Gmail, Docs, Drive, Meet, and other Google services.
• File analysis: Upload and analyze supported documents and other files.
• Coding assistance: Generate, explain, review, and troubleshoot code.
• Gemini Notebook: Organize and analyze research materials and source information.
• Gems: Create customized AI experts for specific tasks and workflows.
• Image generation: Generate images through supported Gemini experiences.
• Long-context processing: Handle large amounts of information in supported models and plans.
• Google ecosystem integration: Extend AI assistance across Google’s consumer and productivity services.

Best For

Gemini is best for individuals, professionals, students, and businesses that already rely heavily on Google products. It is particularly useful for research, document analysis, writing, coding, and productivity workflows where integration with Gmail, Docs, Drive, and other Google services can reduce the need to move information between applications.

Why Choose Gemini?

Gemini combines general-purpose AI assistance with direct access to Google’s productivity ecosystem and multimodal capabilities. Its ability to work across Google applications, analyze different types of content, and support research and coding makes it suitable for users who want an AI assistant closely connected to their existing Google workflows.

Pricing

Gemini offers free access with usage limits. Google AI Pro costs $19.99/month and includes higher Gemini usage limits, access to advanced models and Deep Research, as well as expanded Gemini features across Google products.

G2 Rating: 4.4/5 from 349 reviews.

Gartner Rating: 4.5/5 from 75 ratings.

#4 Microsoft Copilot

Microsoft Copilot is Microsoft’s AI assistant platform for consumer, professional, and enterprise productivity. It provides conversational assistance for research, writing, summarization, analysis, content creation, and other tasks, while Microsoft 365 Copilot connects these capabilities directly with workplace applications and organizational information.

The platform is particularly closely integrated with Microsoft 365. Depending on the license and configuration, users can work with Copilot in Word, Excel, PowerPoint, Outlook, and Teams, allowing AI assistance to appear within applications already used for everyday business work. Copilot can also ground responses in permitted work information and connected data sources.

Microsoft has also expanded Copilot beyond basic chat through agents and Copilot Studio. Organizations can create and manage specialized AI agents and connect them with business processes, giving Microsoft Copilot a role in both individual productivity and broader enterprise automation workflows.

Key Features

• AI chat: Handle questions, research requests, instructions, and everyday productivity tasks.
• Microsoft 365 integration: Bring AI assistance into Word, Excel, PowerPoint, Outlook, and Teams.
• Work data grounding: Use permitted organizational information to provide contextual responses.
• Word assistance: Draft, rewrite, summarize, and transform documents.
• Excel assistance: Analyze spreadsheet information and support data-related tasks.
• PowerPoint assistance: Help create and modify presentations.
• Outlook assistance: Summarize emails and support email-related workflows.
• Teams integration: Assist with meetings, conversations, and collaboration.
• AI agents: Create and use specialized agents for business workflows.
• Enterprise controls: Provide security, privacy, identity, governance, and administrative capabilities.

Best For

Microsoft Copilot is best for businesses and professionals that use Microsoft 365 as their primary productivity environment. It is particularly useful for organizations that want AI assistance directly inside Word, Excel, PowerPoint, Outlook, Teams, and other Microsoft applications instead of maintaining a separate AI workflow.

Why Choose Microsoft Copilot?

Copilot’s main advantage is its close connection with Microsoft’s productivity and business ecosystem. Organizations can use AI assistance within familiar applications while connecting supported workflows to business information, collaboration data, and specialized agents. This makes it particularly relevant for Microsoft-centric workplaces.

Pricing

Microsoft 365 Copilot costs $30/user/month when paid yearly and requires a qualifying Microsoft 365 license. Microsoft 365 Copilot Chat is available at no additional cost for eligible Microsoft 365 users.

G2 Rating: Not available

Gartner Rating: 4.4/5 from 809 ratings.

#5 Perplexity

Perplexity is an AI-powered search and research assistant designed to combine conversational AI with real-time web information. Rather than relying only on a model’s existing knowledge, the platform searches online sources and presents synthesized answers with citations, making it particularly useful for users who need to investigate a topic and review supporting information.

The platform can handle research questions, follow-up conversations, file analysis, and information discovery. Its search-first approach makes source retrieval a central part of the experience, while paid plans provide additional access to advanced models, Pro Search, Projects, file uploads, and other research capabilities.

Perplexity has also expanded into business and enterprise use cases. Enterprise plans provide organizational features and internal knowledge capabilities, allowing teams to use the platform for research and information retrieval while applying additional security and administration controls.

Key Features

• AI search: Search the web through natural-language questions and conversational queries.
• Citations: Provide references alongside generated answers for source verification.
• Pro Search: Perform more advanced searches and research workflows.
• Multi-model access: Route queries across different supported AI models.
• File analysis: Upload supported files and use them as context for questions.
• Projects: Organize research, conversations, and relevant information around specific topics.
• Deep research: Conduct more extensive research workflows for complex questions.
• Create files and apps: Generate supported outputs from research and natural-language instructions.
• Enterprise search: Search organizational information through supported enterprise capabilities.
• Real-time information: Retrieve current information from web sources instead of relying only on model training data.

Best For

Perplexity is best for researchers, marketers, analysts, students, writers, and professionals who regularly need current information and supporting sources. It is particularly useful when finding and verifying information is more important than using a general-purpose assistant for broad productivity tasks.

Why Choose Perplexity?

Perplexity places search and source discovery at the center of its AI assistant experience. Its combination of real-time web research, citations, multiple AI models, file analysis, and research-oriented features makes it a strong fit for workflows where users need to investigate topics and trace answers back to supporting information.

Pricing

Perplexity provides a free Standard plan. Perplexity Pro costs $20/month or $200/year and adds higher limits, advanced models, Pro Search, Projects, file analysis, and other capabilities. Enterprise Pro costs $40/user/month or $400/year.

G2 Rating: Not available

Gartner Rating: 4.6/5 from 5 ratings.

#6 Grok

Grok is an AI assistant developed by xAI for conversational assistance, research, reasoning, coding, and multimodal tasks. It is designed to provide natural-language responses while also connecting users with current information, including information available through the X platform and web search.

The assistant supports a broad range of workflows, including research, coding, content creation, image generation, and information discovery. Its access to real-time information gives it a different role from AI assistants that primarily rely on their trained knowledge, particularly when users want to investigate current conversations, trends, or breaking developments.

Grok is available through free and paid experiences, with higher-tier plans providing increased limits and access to more advanced capabilities. xAI also provides connectors and API access for broader technical and business use cases, allowing Grok capabilities to extend beyond its standard conversational interface.

Key Features

• Real-time search: Access current web and X information for supported queries.
• X integration: Use information from conversations and trends on X.
• Research assistance: Investigate topics and synthesize current information.
• Reasoning: Work through complex questions and multi-step problems.
• Coding assistance: Generate, explain, and troubleshoot code.
• Image generation: Create images through supported Grok experiences.
• Video generation: Generate video content on supported plans.
• Voice mode: Interact with Grok through voice conversations.
• Connectors: Connect supported external information sources and services.
• Multimodal capabilities: Work with supported text, images, and other content types.

Best For

Grok is best for users who want an AI assistant with strong access to current information, particularly people following X conversations, trends, breaking topics, or rapidly changing subjects. It can also support coding, research, creative work, and general-purpose AI assistance.

Why Choose Grok?

Grok differentiates itself through its connection with real-time information and the X ecosystem. Its combination of web and X search, reasoning, coding, image and video generation, and voice capabilities makes it useful for users who want an AI assistant that can work with current information and multiple content formats.

Pricing

Grok offers a Free plan. SuperGrok costs $30/month, while SuperGrok Plus costs $100/month and provides higher usage and additional capabilities.

G2 Rating: 4.2/5 from 21 reviews.

Gartner Rating: 3.7/5 from 3 ratings.

#7 Poe

Poe is an AI assistant platform that brings models and bots from multiple AI providers into a single interface. Instead of requiring users to maintain separate subscriptions and applications for every model, Poe provides one environment where users can interact with different AI systems and choose models according to their needs.

The platform supports text, image, video, and audio capabilities through its collection of models and bots. Users can also create custom bots with specific instructions, making Poe useful for specialized workflows without requiring users to build an AI application from scratch.

Poe also provides developer-oriented access through its API and bot ecosystem. This allows developers to work with supported models through a common interface, while individual users can switch between models and use different bots from one subscription. This multi-model approach is the platform’s primary distinction among AI assistant solutions.

Key Features

• Multiple AI models: Access models from different AI providers through one platform.
• Model switching: Select different models based on the requirements of a task.
• Custom bots: Build specialized bots with custom instructions and behavior.
• Multimodal AI: Access text, image, video, and audio capabilities through supported bots.
• Bot marketplace: Discover and use bots created by other users and developers.
• Cross-platform access: Use Poe across supported web and mobile applications.
• Developer API: Build applications using supported Poe models and bots.
• Model comparison: Test different AI systems within a single environment.
• Large context support: Access expanded context capabilities on supported bots and plans.
• Unified subscription: Access multiple AI models without maintaining separate subscriptions for each provider.

Best For

Poe is best for users who want to access multiple AI models from one platform. It is particularly useful for people who regularly compare models, experiment with different AI systems, create specialized bots, or want a single subscription rather than managing several individual AI services.

Why Choose Poe?

Poe’s main differentiator is its multi-model approach. Instead of tying users to one AI provider, it provides access to a broad collection of models and custom bots through one interface. This makes it useful for experimentation, model comparison, creative workflows, and users who want flexibility in choosing which AI system handles a task.

Pricing

Poe offers a free plan and paid subscriptions. Paid subscriptions start at $4.99/month, with higher tiers providing additional compute points and access to more models and capabilities. Pricing can vary by subscription tier and region.

G2 Rating: 4.5/5 from 15 reviews.

Gartner Rating: Not available

#8 Meta AI

Meta AI is an AI assistant developed by Meta and integrated across products including WhatsApp, Instagram, Facebook, Messenger, the web, and compatible Meta devices. It is designed to provide everyday assistance without requiring users to leave the applications where they already communicate, search, and consume content.

The assistant can answer questions, provide recommendations, help with writing, generate images, and support voice-based interactions. Meta has also expanded the standalone Meta AI experience with personalization and memory features, while its connection with Meta’s smart glasses extends AI assistance into real-world and visual interactions.

Meta AI is particularly focused on consumer accessibility rather than enterprise knowledge management. Its integration across Meta’s applications makes it useful for everyday questions, content creation, social discovery, and conversational assistance, while newer experiences provide additional ways to interact with the assistant.

Key Features

• Conversational assistance: Answer questions and support everyday tasks through natural-language interaction.
• Meta app integration: Access AI assistance through supported Facebook, Instagram, Messenger, and WhatsApp experiences.
• Voice interaction: Communicate with Meta AI through supported voice experiences.
• Image generation: Create images from natural-language descriptions.
• Image understanding: Analyze supported visual inputs.
• Writing assistance: Draft and transform messages, captions, emails, and other text.
• Personalization: Adapt assistance using available preferences and conversational context.
• Web access: Retrieve current information for supported queries.
• Meta AI app: Use Meta AI through a dedicated application where available.
• Smart glasses integration: Extend AI assistance to compatible Meta wearable devices.

Best For

Meta AI is best for consumers who already use Meta’s applications and want AI assistance integrated into everyday communication and social workflows. It is particularly suitable for casual research, writing, image creation, recommendations, and voice-based assistance rather than specialized enterprise productivity.

Why Choose Meta AI?

Meta AI’s primary advantage is accessibility across Meta’s large consumer ecosystem. Users can interact with the assistant inside applications they already use, while its support for voice, images, personalization, and compatible smart glasses provides multiple ways to access AI assistance without relying exclusively on a traditional chatbot interface.

Pricing

Meta AI is available for free across supported products and markets. Meta has also introduced subscription offerings with additional AI features, but the core Meta AI assistant remains available without a separate subscription in supported experiences.

G2 Rating: 3.2/5 from 3 reviews.

Gartner Rating: Not available

#9 Amazon Q

Amazon Q is Amazon Web Services’ generative AI assistant family for business and developer workflows. It is designed to help users interact with organizational information, develop software, work with AWS services, and complete tasks through natural-language interactions.

Amazon Q Business focuses on enterprise knowledge and information retrieval. It can connect to organizational data sources and provide permission-aware responses, helping employees search business information and documents through conversational queries. Amazon Q Developer, meanwhile, provides coding assistance and support for software development and AWS-related tasks.

The platform is closely connected to the AWS ecosystem, making it particularly relevant for organizations already using AWS infrastructure and services. Its combination of enterprise search, developer assistance, integrations, and security controls allows Amazon Q to function as both a workplace AI assistant and a development-focused solution.

Key Features

• Enterprise search: Search and interact with organizational information through natural-language questions.
• Permission-aware responses: Respect access permissions when retrieving business information.
• AWS assistance: Answer questions and provide support for AWS services and cloud workflows.
• Coding assistance: Generate, explain, modify, and troubleshoot code.
• Code transformation: Support modernization and transformation of supported applications.
• Developer integrations: Work within supported IDEs and development environments.
• Business data connectors: Connect supported enterprise repositories and applications.
• Agentic workflows: Support multi-step tasks and actions through compatible capabilities.
• Security controls: Provide enterprise access, identity, and data protection capabilities.
• AWS ecosystem integration: Connect AI assistance with AWS services and business workflows.

Best For

Amazon Q is best for AWS-centric businesses, developers, IT teams, and organizations that need AI assistance connected to enterprise information and cloud workflows. It is particularly relevant for software development, AWS operations, internal knowledge discovery, and business applications built around AWS.

Why Choose Amazon Q?

Amazon Q combines AI assistance with AWS’s cloud and enterprise ecosystem. Organizations can use it for both employee knowledge discovery and software development while connecting it with AWS services and supported business data sources. This makes it particularly useful where AI assistance needs to operate within an existing AWS environment.

Pricing

Amazon Q Business offers Lite at $3/user/month and Pro at $20/user/month, with additional index and consumption charges depending on the deployment. AWS also provides separate pricing for Amazon Q Developer and other Q capabilities.

G2 Rating: 4.5/5 from 5 reviews.

Gartner Rating: 4.4/5 from 270 ratings.

#10 NotebookLM

NotebookLM is Google’s AI-powered research and knowledge assistant designed around information supplied by the user. Rather than functioning primarily as an open-ended chatbot, it allows users to create notebooks around specific source materials and then ask questions, generate summaries, and explore connections within those sources.

The platform can work with supported documents and other source types, making it useful for research, education, technical documentation, business analysis, and other document-heavy workflows. Its source-grounded approach helps users keep conversations tied to the information they have provided instead of relying solely on general model knowledge.

NotebookLM has also expanded beyond basic document question answering with features such as Audio Overviews, research workflows, and integrations with Google’s broader AI ecosystem. This makes it particularly useful for users who want an AI assistant centered around a specific collection of reference material.

Key Features

• Source-grounded assistance: Generate responses based on information contained in supplied sources.
• Document analysis: Analyze supported documents and source materials.
• Research notebooks: Organize information and conversations around specific projects.
• Question answering: Ask questions about uploaded or connected sources.
• Source citations: Identify supporting passages and sources used in responses.
• Summarization: Create concise overviews of lengthy source material.
• Audio Overviews: Turn source material into AI-generated audio discussions.
• Research assistance: Compare information and identify connections across sources.
• Writing support: Use source material to create summaries, outlines, and other written outputs.
• Google AI integration: Access expanded NotebookLM capabilities through eligible Google AI plans.

Best For

NotebookLM is best for researchers, students, writers, analysts, educators, and professionals who regularly work with collections of documents or reference materials. It is particularly useful when users want an AI assistant to stay closely grounded in a defined set of sources.

Why Choose NotebookLM?

NotebookLM takes a source-first approach to AI assistance. Instead of starting with an unrestricted conversation, users build a knowledge environment around their own materials and then use AI to analyze, summarize, question, and connect that information. This makes it well suited to research and document-heavy workflows where source context matters.

Pricing

NotebookLM offers a free tier. Google AI Pro costs $19.99/month and includes expanded access to NotebookLM alongside other Google AI capabilities.

G2 Rating: Not available

Gartner Rating: Not available