Cheapest AI Chatbots in 2026: Every Option Sorted by Price
10 AI assistants sorted from cheapest to most expensive, using official 2026 prices per month.
· 1 min read

Looking for the cheapest AI assistants? We sorted every option sold on AIOFFER by its official price per month (long plans converted to a monthly cost) so you can compare them fairly.
AI Chatbots sorted by price
| # | Service | Cheapest plan | Official per month |
|---|---|---|---|
| 1 | ChatGPT | ChatGPT Go | $8 |
| 2 | Monica AI | Monica AI Pro | $9.90 |
| 3 | Character.AI Plus | Character.AI Plus c.ai+ | $9.99 |
| 4 | Sider AI | Sider AI Basic | $10 |
| 5 | Mistral Le Chat Pro | Mistral Le Chat Pro Pro | $14.99 |
| 6 | Poe | Poe Subscription Annual (1 year) | $16.67 |
| 7 | Google Gemini | Google Gemini AI Pro | $19.99 |
| 8 | Microsoft Copilot | Microsoft Copilot M365 Premium | $19.99 |
| 9 | Claude | Claude Pro | $20 |
| 10 | Grok | Grok SuperGrok | $30 |
The three cheapest
ChatGPT
The world's most popular AI assistant — GPT models, image and video generation, deep research and agents. From $8 per month. See ChatGPT deals →
Monica AI
All-in-one AI assistant for your browser — chat, summarize, translate and write. From $9.90 per month. See Monica AI deals →
Character.AI Plus
Talk to millions of AI characters — faster replies and better memory with c.ai+. From $9.99 per month. See Character.AI Plus deals →
Cheapest isn't always best value
Compare what you get per dollar: the cheapest plan may have lower limits or fewer features. Start with the mid-tier plan for a month — upgrade only if you keep hitting the limits.
Pay less than the official price
Every service in this list is sold on AIOFFER below the official price, paid with Bitcoin or USDT. Selected plans also appear in our daily deals with up to 80% off. For a ranked list, see the best AI assistants.
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