How much does Kimi cost?

The web chat is free, while the API uses pay-as-you-go pricing ranging from approximately $0.60 to $4.00 per million tokens depending on the specific model used.

Does Kimi support image or video generation?

No, Kimi is not designed for image, video, or voice generation; it focuses on long-document ingestion, coding agents, and agentic workflows.

Are Kimi's model weights open source?

While earlier K2 weights were released openly on Hugging Face, the production K2.6 and K2.7 endpoints behind Kimi.com are proprietary and not open weights.

Kimi

✓ Editorially verified

Moonshot AI's chat assistant with long-context document analysis, coding agents, and deep research built in.

Freemium· Free web chat; API pay-as-you-go from ~$0.60/MTok inputWritingKimi K2 (K2.5 / K2.6 / K2.7 Code)8.1 / 10

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In short

Kimi is a consumer-facing AI assistant from Moonshot AI that specializes in long-context document analysis and agentic workflows. It is best for users needing a free chat interface or affordable API access for coding and research tasks.

Best for

Pick Kimi if you want a long-context Chinese frontier model with coding and agent tooling, either as a free chat or a cheap pay-as-you-go API.

Skip if

Skip it if you need image, video, or voice generation, tight enterprise data-residency in the US/EU, or a vendor with deep Western SaaS integrations.

Kimi is the consumer-facing AI assistant from Moonshot AI, a Beijing-based lab that has spent the last two years pushing long-context language models. The web app bundles a conversational chat surface with specialized modes for code, document analysis, slide and website generation, spreadsheets, deep research, and an 'Agent Swarm' coordinator that lets multiple sub-agents tackle a task in parallel. The current model under the hood is the K2 family (K2.6 general, K2.7 Code, K2.5 multimodal with thinking/non-thinking modes).

It is most interesting to people who want a ChatGPT-style workspace that leans hard on long-document ingestion and agentic workflows rather than image generation or voice. The web chat is free; the developer side lives at platform.kimi.ai with pay-as-you-go pricing roughly in the $0.60-$4.00 per million tokens range depending on model. Earlier K2 weights have been released openly by Moonshot on Hugging Face, but the production K2.6/K2.7 endpoints behind Kimi.com are proprietary.

For English-speaking users the main caveats are that Kimi was built China-first, so some integrations, billing flows, and mobile app distribution are smoother for users in Asia, and the agent/sheets/slides features are newer than the core chat and still evolving.

Editor's take

Kimi has quietly become one of the more credible non-US frontier assistants, especially for long documents and code. The bundled agent, sheets, and slides modes are ambitious but uneven, so we mostly recommend it as a chat plus API combo rather than a full Office replacement.

— The AI Tool Bible editorial team

Pros

✅ Strong long-context handling for large documents and codebases
✅ Bundles chat, code, docs, slides, sheets, and agents in one workspace
✅ Free web tier with no obvious message cap
✅ Competitive API pricing versus US frontier labs
✅ Earlier K2 model weights released openly on Hugging Face

Cons

⚠️ Production K2.6/K2.7 endpoints are proprietary, not open weights
⚠️ China-first product; some flows are awkward for Western users
⚠️ Newer agent/sheets/slides features feel less polished than core chat

Use cases

long-document analysisdeep researchcoding agentslide generationspreadsheet automationchat assistant

Frequently asked

What are the main features of Kimi?: Kimi bundles conversational chat with specialized modes for code, document analysis, slide and website generation, spreadsheets, deep research, and an 'Agent Swarm' coordinator for parallel task handling.
How much does Kimi cost?: The web chat is free, while the API uses pay-as-you-go pricing ranging from approximately $0.60 to $4.00 per million tokens depending on the specific model used.
Is Kimi suitable for Western users?: Kimi was built China-first, so some integrations, billing flows, and mobile app distribution are smoother for users in Asia, though it remains a credible non-US frontier assistant.
Does Kimi support image or video generation?: No, Kimi is not designed for image, video, or voice generation; it focuses on long-document ingestion, coding agents, and agentic workflows.
Are Kimi's model weights open source?: While earlier K2 weights were released openly on Hugging Face, the production K2.6 and K2.7 endpoints behind Kimi.com are proprietary and not open weights.