Kimi K2 0905 Preview
Moonshot AI
Key facts · verified Oct 29, 2026
Kimi K2 0905 Preview is a Moonshot AI model. It was retired on 25 May 2026. Its last listed API price was $0.60 per million input tokens and $2.50 per million output tokens. Its context window is 262.1K tokens. It ranks #134 on LMArena's text leaderboard (Elo 1418, read 1 Nov 2026). Source: platform.kimi.ai.
Kimi K2 0905 Preview is a model from Moonshot AI in its Kimi K2 series, with a 262.1K-token context window and open weights under a Modified MIT licence. Moonshot discontinued the Kimi K2 series on its API on 25 May 2026 and recommends kimi-k3. Third-party pricing listed in LMArena's dataset was $0.60 per million input tokens and $2.50 per million output tokens. 1418 Elo (rank 134)
Pricing & specs checkedSource: vendor documentation · checked Oct 29, 2026LMArena: 1418 Elo (rank 134) · source · retrieved Nov 1, 2026
Full Specifications
$0.60 / $2.50 per million tokens | |
|---|---|
| Identity | |
| Developer | Moonshot AI |
| Retired | 25 May 2026 |
| Status | Retired. Moonshot discontinued the Kimi K2 series on the Kimi API on 25 May 2026; replacement: kimi-k3. |
| Licence | Modified MIT |
| Self-hostable | Yes |
| Cost | |
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $1.075 / 1M tokens |
| Input price | $0.600 / 1M tokens |
| Output price | $2.500 / 1M tokens |
| Capacity | |
| Context window | 262.1K tokens |
| Measured quality | |
| LMArena Elo | 1418 (checked Nov 2026) |
| LMArena rank | Rank 134 |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 1319 |