ChatGPT alternatives: 5 tools compared (October 2026)

Microsoft Copilot is the AI assistant inside Microsoft 365, answering questions and drafting content from a company's own email, documents, meetings and chats, aimed at organizations that already use Microsoft 365.

Key functions

• Chat grounded in email, documents, calendar and chats
• Copilot in Word, Excel, PowerPoint, Outlook and Teams
• Prebuilt agents such as Researcher and Analyst

Compared with ChatGPT

• Can store data in the EU; ChatGPT states no EU option.
• Different pricing model: per user instead of freemium.
• Names fewer security certificates: 2, ChatGPT 6.

Check before buying: Copilot shows everything a user is allowed to open, so clean up SharePoint and Teams permissions first. Decide whether to allow Anthropic models, which fall outside the EU Data Boundary. The SMB bundles apply up to 300 users. In the US, check state rules such as those in Colorado and Illinois if Copilot output supports decisions about employees.

Claude is Anthropic's AI assistant for writing, analysis, research and coding, offered as a free app, as individual subscriptions and as Team and Enterprise workspaces for companies.

Key functions

• Research searches the web and connected sources and returns a cited report
• Projects group files and instructions for recurring work
• Connectors bring company tools into the chat

Compared with ChatGPT

• Starts higher: from $17 per month, ChatGPT from $8 per month.
• Names fewer security certificates: 3, ChatGPT 6.
• Strong in the same markets as ChatGPT: United States.

Check before buying: Individual plans (Free, Pro, Max) let users opt out of training, while Team and Enterprise exclude it by default, so route business use through a company workspace. Check which connectors may access internal systems. In the US, state rules in Colorado and Illinois apply if outputs feed into hiring or other decisions about people.

Gemini in Google Workspace brings Google's AI assistant into Gmail, Docs, Sheets, Meet and Drive and adds the standalone Gemini app, for companies that already run their office work on Google Workspace.

Key functions

• Gemini app for chat, drafting and analysis
• Gemini in Gmail, Docs, Sheets, Slides, Drive and Meet
• Gemini Notebook summarizes documents and turns them into visual aids

Compared with ChatGPT

• Different pricing model: per user instead of freemium.
• Names fewer security certificates: 3, ChatGPT 6.
• Strong in the same markets as ChatGPT: United States.

Check before buying: Gemini respects existing Workspace sharing rights, so review folder and drive permissions before rollout, since the assistant can surface anything a user can open. The pricing page does not state data regions; ask Google which data location options your edition includes. Check which Gemini functions your plan tier covers.

Anthropic Agent Skills is the public GitHub repository of skills for Claude. Skills are folders of instructions, scripts and resources that Claude loads when a task needs them, for example to create an Excel file or follow company brand guidelines.

Key functions

• Skills for creating and editing DOCX, XLSX, PPTX and PDF files
• Example skills for design, development, testing and enterprise communication
• Specification of the open Agent Skills format and a template for your own skills

Compared with ChatGPT

• Strong in the same markets as ChatGPT: United States.

Check before buying: Check the license of each skill before reusing it, since the document skills are not open source. Anthropic describes the repository as demonstration and educational material, so test skills before relying on them in production. Skills can run scripts, so review their code and limit where they are enabled, just as you would with any automation.

Mistral Vibe, known as Le Chat until 2026, is the AI assistant of the Paris model developer Mistral AI for work and coding tasks, with EU data hosting by default and on-premises options for enterprises.

Key functions

• Research across the web, internal documents and connected tools
• Creates and edits PDFs, decks and reports
• More than 100 tools via connectors and MCP

Compared with ChatGPT

• Can store data in the EU; ChatGPT states no EU option.
• Headquartered in France, ChatGPT in United States.
• Single sign-on only in higher plans; at ChatGPT in paid plans.
• Names fewer security certificates: 1, ChatGPT 6.

Check before buying: Some features can temporarily transfer data outside the EU to subprocessors listed in Mistral's trust center; Enterprise customers can switch off some of these features at organization level. SAML SSO is only listed for Enterprise. Review the public data processing addendum before rollout.