Grok vs Kimi
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
AI tool · Freemium
xAI's assistant with real-time access to posts on X, web search, image generation and reasoning modes.
AI tool · Freemium
Moonshot AI's assistant with long-context reading, web research and agentic modes.
Our verdict
Grok and Kimi are both general AI assistants with freemium pricing, but they lean in different directions. Grok is built around real-time conversation and web search, especially posts on X, plus image generation and reasoning modes. Kimi is built around handling very long documents and running deep research tasks, with agentic modes and slide or document generation. Pick based on whether your main need is live information or large-document work; neither listing notes hands-on testing yet.
Pick Grok if you want up-to-the-minute discussion and web results, especially from X, or you need image generation and voice.
Pick Kimi if your main work is reading very long files or running multi-step research and producing slides or docs.
| Key difference | Grok | Kimi |
|---|---|---|
| Best at | Real-time X and web search, reasoning modes, image generation | Long-context file reading, researcher mode, slides and docs |
Written with AI from both products' catalogue entries · updated 2026-10-29
Who each one is for
Choose Grok if you need…
- Following real-time conversation on X
- Reasoning-heavy questions
Choose Kimi if you need…
- Reading very long documents
- Deep research tasks
Side-by-side
| Grok | Kimi | |
|---|---|---|
| Type | AI assistants · General assistants | AI assistants · General assistants |
| Price | Freemium | Freemium |
| Platforms | Web, iOS, Android, API | Web, iOS, Android, API |
| Works with | X | — |
| Hands-on tested by us | Not yet | Not yet |
| Last checked | 2026-10-29 | 2026-10-29 |
What each one is
Grok
xAI's assistant with real-time access to posts on X, web search, image generation and reasoning modes. Strong on current events chatter. Moderation is looser than rivals, which can matter for workplace use.
Kimi
Moonshot AI's assistant with long-context reading, web research and agentic modes. Impressive long-context and agent features. As with other China-based services, review data-residency terms.
Best for
Grok
- Following real-time conversation on X
- Reasoning-heavy questions
Kimi
- Reading very long documents
- Deep research tasks
Strengths
Grok
- Real-time X and web search
- Reasoning modes
- Image generation
- Voice mode
Kimi
- Long-context file reading
- Researcher mode
- Open-weight models
- Slides and docs generation
Frequently asked questions
Should I use Grok or Kimi?
Grok and Kimi are both general AI assistants with freemium pricing, but they lean in different directions. Grok is built around real-time conversation and web search, especially posts on X, plus image generation and reasoning modes. Kimi is built around handling very long documents and running deep research tasks, with agentic modes and slide or document generation. Pick based on whether your main need is live information or large-document work; neither listing notes hands-on testing yet. Pick Grok if you want up-to-the-minute discussion and web results, especially from X, or you need image generation and voice. Pick Kimi if your main work is reading very long files or running multi-step research and producing slides or docs.
What is the difference between Grok and Kimi?
Grok: xAI's assistant with real-time access to posts on X, web search, image generation and reasoning modes. Kimi: Moonshot AI's assistant with long-context reading, web research and agentic modes. Grok suits following real-time conversation on x, while Kimi suits reading very long documents.
Are Grok and Kimi free?
Grok: Freemium. Kimi: Freemium.
What are other alternatives to Grok and Kimi?
Other options people compare them with include Claude, ChatGPT, DeepSeek, Gemini, Le Chat (Mistral).
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.