Best free AI ai assistants tools
Free plans compared side by side (limits, watermarks, commercial use), checked 2026-10-22: Free plan limits →
6 free AI ai assistants tools with a free plan confirmed on the official pricing page (each shows its own checked date): Le Chat (Mistral), ChatGPT, Claude, Google Gemini, Perplexity. They do different main jobs, so pick by the job you need.
Le Chat (Mistral)
Mistral's assistant with web search, image generation and the Vibe coding agent.
Main job: general AI chatbot
🆓 Free plan with limited access
💲 Paid: Pro $14.99/mo; Team $24.99/user/mo (excl. tax)
checked 2026-10-19
ChatGPT
General-purpose AI assistant: writing, research, images, voice.
Main job: general AI chatbot
🆓 Free: $0 (unlimited text chats on GPT-6, limits on tools)
💲 Paid: Go $8/mo; Plus $20/mo; Pro from $100/mo (3 tiers); Business $25/seat/mo ($20 billed annually); monthly billing
checked 2026-10-24
Claude
Assistant known for long-form writing, analysis and coding.
Main job: general AI chatbot
🆓 Free plan: $0
💲 Paid: Pro $20/mo ($17/mo billed yearly); Max $100/mo; Ultra $200/mo
checked 2026-11-06
Google Gemini
Google's assistant, integrated with Gmail, Docs and Drive.
Main job: general AI chatbot
🆓 Gemini app is free to use
💲 Paid: Google AI Plus $4.99/mo; Google AI Pro $19.99/mo ($199.99/yr ≈ $16.67/mo); Ultra from $99.99/mo
checked 2026-11-06
Perplexity
Answer engine that cites web sources.
Main job: answer engine
🆓 Free tier available
💲 Paid: Pro $17/mo billed annually; Max $167/mo billed annually; monthly prices not shown
checked 2026-10-24
Microsoft Copilot
Microsoft's assistant; paid AI features come with Microsoft 365 plans.
Main job: general AI chatbot
🆓 Free Copilot available
💲 Paid: Copilot Pro no longer sold; Microsoft 365 Personal $9.99/mo ($99.99/yr); Microsoft 365 Premium $19.99/mo ($199.99/yr), advanced Copilot (US prices)
checked 2026-10-20
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