Kimi
Moonshot's open-weight models, built for long documents and agent runs.
Kimi is Moonshot AI's model family, open-weight and aimed squarely at long-horizon work: big context windows, strong tool use, and a Code variant tuned for software tasks. K3 is a multimodal reasoning model with a million-token context. If you have a large repository or a long agent run and do not want to pay frontier prices, this is the family to price against. The Kimi chat app is listed separately under Chats.
At a glance — Kimi K2 0905
- Cost
- $0.60 in · $2.50 out per 1M tokensMid-range
- Memory
- 262K tokens — about 400 pages
- Reads
- Text
- Can do
- Use tools (agents)
- Structured output
- Thinking mode (not supported)
- Reliability
- 100.00% uptime, last 24h
- Released
- Sep 4, 2025
Advanced details
- API model ID
moonshotai/kimi-k2-0905- Max output
- 98K tokens
- Knowledge cutoff
- 2024-12-31
- Tokenizer
- Other
Providers
The same model, hosted by different companies. OpenRouter picks one per request and falls back to the next if it fails.
| Provider | Input /1M | Output /1M | Cached /1M | Max output | Uptime 24h |
|---|---|---|---|---|---|
| Novita · fp8 | $0.60 | $2.50 | — | 98K | 100.00% |
Supported parameters
- frequency_penalty
- max_tokens
- presence_penalty
- repetition_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_k
- top_p
Live from OpenRouter, refreshed hourly.
Key info
- Pricing
- Open source
- Category
- Models
- Best for
- Intermediate
- Made by
- Moonshot AI
- Weights
- Open
- Good for
- Long documents and long agent runs