ChatGPT runs from a free tier to $500/mo, with Go, Plus, two Pro levels and Pro 500 in between. If you mostly do one kind of work, a specialist often does it better for the same money or less.
Claude ($20/mo) is the best alternative if you write, read long documents or code. Gemini is the cheapest paid switch at $4.99/mo and the obvious pick for Google Workspace users. DeepSeek costs nothing at all.
| App | Free tier | Paid from | Top plan | Best for |
|---|---|---|---|---|
| ChatGPT | Yes | $8/mo | $500/mo | Everyday writing, brainstorming, image generation, casual coding |
| Claude | Yes | $20/mo | $100–200/mo | Document analysis, research papers, nuanced writing, software engineering |
| Gemini | Yes | $4.99/mo | $99.99–199.99/mo | Google ecosystem users, video generation, very long documents (1M tokens) |
| DeepSeek | Yes | — | — | Math, logic, coding for users on a budget — or curious experimenters |
| Perplexity | Yes | $20/mo | $200/mo | Research with verifiable sources, fact-checking, exploring unfamiliar topics |
| Mistral Vibe | Yes | $14.99/mo | $24.99/mo | Users who want a privacy-conscious European alternative to ChatGPT/Claude with all-day agentic coding built in |
Monthly prices in US dollars before tax, from each vendor's official pricing (US list price; weekly-billed plans converted to a monthly figure). Updated October 7, 2026
Claude is built for long documents, careful reasoning and software engineering. Pro gives you Opus 5.5, Sonnet 5.5, projects and Research for the same $20/mo as ChatGPT Plus.
Pick it if: most of your ChatGPT use is drafting, editing, analysing documents or coding, and you don't need image generation.
Full Claude pricing →AI Plus costs $4.99/mo for Gemini 3.1 Pro (limited), double the free limits and 400 GB of storage. AI Pro adds Deep Research, a 1M-token context and Veo video, plus Gemini inside Gmail and Docs.
Pick it if: you live in Gmail, Docs and Drive, or want the lowest paid price of any major assistant.
Full Gemini pricing →DeepSeek has no paid consumer plan: V4.1-Flash and V4-Pro with chain-of-thought reasoning, no ads and no usage cap, on web, iOS and Android.
Pick it if: you want strong maths, logic and coding help for free and are comfortable with a China-hosted service.
Full DeepSeek pricing →Perplexity searches first and cites every answer. The free tier has unlimited quick searches; Pro ($20/mo) adds 300+ Pro searches a day using GPT-5.6 and Claude Sonnet 5.
Pick it if: you mostly use ChatGPT to look things up and want sources you can check.
Full Perplexity pricing →Mistral's assistant (formerly Le Chat) covers chat, web search, image generation and agentic coding. Pro costs $14.99/mo, less than ChatGPT Plus, and even the free tier includes $10/mo in API credits.
Pick it if: you prefer a European, privacy-conscious provider and want coding agents included in the price.
Full Mistral Vibe pricing →If price is the only problem, you may not need to switch. ChatGPT Free now has unlimited text chats on GPT-5.6 Luna, and Go ($8/mo) adds more image generation, memory and projects. Switch when you want something ChatGPT does less well: long-document work (Claude), Google integration (Gemini) or cited answers (Perplexity).
DeepSeek, which has no paid tier and no usage cap. Gemini's free tier (Gemini 3.6 Flash) is the best free option if you'd rather stay with a US provider.
Yes: Gemini AI Plus at $4.99/mo, Mistral Vibe Pro at $14.99/mo, or ChatGPT's own Go plan at $8/mo. Claude Pro costs the same as Plus.
Claude, which is built for serious software engineering. If you want AI inside your editor rather than a chat window, look at Cursor or GitHub Copilot instead.
How we choose: prices come from each vendor's official pricing page and are re-checked every week. We take no affiliate fees, so rankings aren't for sale.