ChatGPT vs. Claude vs. Gemini? Comparing the top three assistants
We have compared the world's three most popular AI assistants in Persian writing, programming, document analysis, search, image, and voice so you know which one is better for you.
All three assistants today are powerful enough to give acceptable results for most daily tasks. The main difference is in the ecosystem, auxiliary tools, and response style. The table below summarizes our experience working with the current versions of all three.
| Criterion | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Writing and editing Persian text | Good; sometimes translation-like tone | Very good; fluent and natural | Good and improving |
| Programming | Very good; along with Codex | Excellent; along with Claude Code | Very good; along with Google tools |
| Long document analysis | Good | Excellent; large context window | Excellent; very large context window |
| Web search and current information | Yes, with source | Yes, with source | Strong; connected to Google Search |
| Image generation | Yes; with text editing | None | Yes |
| Voice chat | Very fluent | Yes | Yes; Gemini Live |
| Video comprehension | Limited | Limited | Strong |
| Integration with other services | Custom GPTs and service integration | Projects and integration via MCP | Gmail, Drive, Docs, and Android |
| Free version | Yes, with a limited cap | Yes, with a limited cap | Yes, generous |
| Best for | All-in-one user | Writer, programmer, researcher | Google ecosystem users |
Summary and our recommendation
- If you want an all-in-one tool with image and voice: ChatGPT.
- If you mostly write, code, or analyze long documents: Claude.
- If your work life is centered in Gmail and Google Drive or you work with video: Gemini.
Our practical suggestion: Choose a real, repetitive task of your own and try the exact same prompt in all three. See sample outputs in the Prompt Lab.
This comparison is based on user experience and public information from the creators up to date Oct 28, 2026 It is written as an editorial opinion, not the result of an official benchmark. Capabilities and prices change constantly.
Complete introduction of each option
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