Two chat & assistants tools, one decision. Here is the honest split.
| Grok | Kimi | |
|---|---|---|
| Pricing | Freemium | Free plan |
| Best at | Trending topics, X-native context, and answers with current social pulse. | Feeding whole books, long PDFs, or codebases into one conversation and asking precise questions. |
| In short | xAI's assistant with real-time X (Twitter) data woven in and a more unfiltered personality. | Moonshot's assistant with a very long context window and strong document Q&A, free to use. |
| On Atlas | 3 starter prompts | 3 starter prompts |
Pick Grok when the job is Trending topics, X-native context, and answers with current social pulse.. Pick Kimi when the job is Feeding whole books, long PDFs, or codebases into one conversation and asking precise questions.. Still torn? Run one real task through both free tiers. An hour of testing beats a week of reviews.
I need to [task]. Ask me the three questions that would most improve your answer, then answer using what I give you.