Sorted by starting price
6 Cheapest AI Chatbots of 2026
By the Rankozo research desk · Updated November 6, 2026
Among the 8 tools in our best ai chatbots ranking, Gemini has the lowest verified paid starting price at $4.99 per month. Prices below are quoted from each vendor's US pricing page.
- 01
GeminiPeople who want the most capable free tier and the cheapest paid upgrade, especially if they already use Gmail and Drive.
Free plan; Google AI Plus $4.99 per month, Google AI Pro $19.99 per month
Full entry, No. 1 overallStarts at
$4.99
Score 9.2
- 02
GrokPeople who follow news and trends on X and want answers that draw on live posts.
Free plan; Plus $8 per month, Premium $30, Super $100
Full entry, No. 6 overallStarts at
$8
Score 8.5
- 03
Microsoft CopilotPeople who want an AI assistant inside Word, Excel, PowerPoint and Outlook along with cloud storage.
Free Copilot; Microsoft 365 Personal $9.99 per month with Copilot in Office apps; 1-month free trial
Full entry, No. 4 overallStarts at
$9.99
Score 8.7
- 04
Mistral Vibe (Le Chat)People who want a European AI assistant with coding tools and a low-cost Pro plan.
Free plan; Pro $14.99 per month excluding taxes; Team $24.99 per user per month
Full entry, No. 7 overallStarts at
$14.99
Score 8.2
- 05
ClaudePeople who write, research or code with an assistant for hours a day and want Projects and Claude Code in one plan.
Free plan; Pro $17 per month billed annually ($200 up front) or $20 monthly
Full entry, No. 2 overallStarts at
$17
Score 9.1
- 06
PerplexityPeople who mainly use a chatbot for research and want sources cited in every answer.
Free plan; Pro $17 per month equivalent billed annually; Max $167 per month billed annually
Full entry, No. 5 overallStarts at
$17
Score 8.6
Scores and prices come from our Best AI Chatbots ranking, which uses one method for every tool. Questions or corrections: editorial@rankozo.com