Kimi K2 Thinking
Moonshot AI · Released Nov 2025
Kimi K2 Thinking is a reasoning-focused model from Moonshot AI that uses extended chain-of-thought to work through complex problems before generating responses.
- Strengths
- Excels at multi-step reasoning, problem decomposition, and tasks requiring detailed working-through of logic chains.
- Best for
- Mathematical derivations, scientific analysis, complex code debugging, and other problems where showing intermediate reasoning steps improves output quality.
- Limitations
- Extended reasoning adds latency and token consumption compared to standard inference models in the Moonshot lineup like K2.6 or K2 0905.
Input / 1M
$0.6
Output / 1M
$2.50
Cached input / 1M
$0.15
Context window
262K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in decreased 0.0% out decreased 0.0%
- 90d
- in decreased 0.0% out decreased 0.0%
- 1y
- in decreased 0.0% out decreased 0.0%
- Since launch
- in decreased 0.0% out decreased 0.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 18 Jul 2026 | $0.6 | $2.50 | $0.15 | Imported from OpenRouter | openrouter.ai |
| 15 Jul 2026 | $0.6 | $2.50 | — | Imported from OpenRouter | openrouter.ai |
| 2 Jul 2026 | $0.6 | $2.50 | $0.15 | Imported from OpenRouter | openrouter.ai |
| 25 Jun 2026 | $0.6 | $2.50 | $0.6 | Imported from OpenRouter | openrouter.ai |
| 11 Jun 2026 | $0.6 | $2.50 | — | Imported from OpenRouter | openrouter.ai |