Moonshot AI · Released Sep 5, 2025Kimi K2 Instruct 0905
September 2025 Kimi K2 instruction update with a 256K context and improved agentic coding.
- Capability
- —No ECI score yet
- Input
- $0.60per 1M tokens
- Output
- $2.50per 1M tokens
- Context
- 262K98K max output
What it costs
- Input
- $0.60per million tokens
- Output
- $2.50per million tokens
- Blended (3:1)
- $1.07pricier than 61% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $2.45 |
| Team assistant25M input + 5M output tokens | $27.50 |
| Production app250M input + 50M output tokens | $275.00 |
Median of 12 paid API providers on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for Kimi K2 Instruct 0905 yet.
The details
- Lab
- Moonshot AI
- Released
- Sep 5, 2025
- Context window
- 262,144 tokens
- Max output
- 98,304 tokens
- Inputs
- Text
- Output
- Text
- Reasoning
- No
- Tool calling
- Yes
- Structured output
- No
- Weights
- Open weights · Modified MIT
- Availability
- 13 API providerslisted on models.dev
More from Moonshot AI
About Kimi K2 Instruct 0905
How much does Kimi K2 Instruct 0905 cost?
Kimi K2 Instruct 0905 costs $0.60 input / $2.50 output per million tokens (median across 12 API providers). At a 3:1 input-to-output mix that is $1.07 per million tokens, more expensive than 61% of the 445 priced models we track.
What is the context window of Kimi K2 Instruct 0905?
Kimi K2 Instruct 0905 accepts up to 262,144 tokens per request and can write up to 98,304 tokens in one response.
How good is Kimi K2 Instruct 0905?
Epoch AI has not published a Capabilities Index score for Kimi K2 Instruct 0905 yet.
Is Kimi K2 Instruct 0905 open source?
Yes. Moonshot AI publishes the weights under the Modified MIT licence, so it can be downloaded and self-hosted.
What inputs does Kimi K2 Instruct 0905 support?
Kimi K2 Instruct 0905 accepts text and replies in text. It is not a dedicated reasoning model, supports tool calling.
When was Kimi K2 Instruct 0905 released?
Moonshot AI released Kimi K2 Instruct 0905 on Sep 5, 2025.
What are the best alternatives to Kimi K2 Instruct 0905?
The closest current models from other labs on capability, price and release date are Apertus 70B (Swiss AI, $0.82 / $2.42), GLM-4.6 (Z.ai (Zhipu), $0.60 / $2.20), Ling-1T (inclusionAI, $0.57 / $2.29) and Relace Apply 3 (Relace, $0.85 / $1.25).