MoonshotAI: Kimi K2 Thinking
The Kimi K2 Thinking model is a language processing AI developed by MoonshotAI that handles text input and supports reasoning capabilities. It has a large context length of 262144 tokens and can process up to 98304 completion tokens at once. If you're looking for an AI with strong reasoning abilities, the Kimi K2 Thinking model's performance in benchmarks suggests it may be worth considering. However, its pricing is higher than average, with $0.6 per million input tokens and $2.5 per million output tokens. A blended benchmark score of 36.8 across one independent benchmark indicates some level of competence, but more data would be needed to make a stronger case for shortlisting this model.
Benchmark results
Independent, published benchmarks. Blended score 33.9 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 36.3 |
- Model ID
- moonshotai/kimi-k2-thinking
- Vendor
- moonshotai
- Released
- November 2025
- Tokenizer
- Other
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 98,304 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.60/M input and $2.50/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.02 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.42 |
| A month of a busy support chatbot | 5M in / 2M out | $8.00 |
Similar models
MoonshotAI: Kimi K3
MoonshotAI: Kimi K3 (batch)
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MoonshotAI: Kimi K2.6
MoonshotAI: Kimi K2.5
MoonshotAI: Kimi K2 0905
Quick answers
- How much does MoonshotAI: Kimi K2 Thinking cost?
- $0.60 per million input tokens and $2.50 per million output tokens.
- What is MoonshotAI: Kimi K2 Thinking's context window?
- 262,144 tokens, roughly 393 pages of text in a single request.
- Does MoonshotAI: Kimi K2 Thinking support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can MoonshotAI: Kimi K2 Thinking process images?
- No, it is text-only on the input side.