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Moonshot AI

Kimi K2 Thinking

Benchmarks, price, context and versions

Also searched as

Kimi-K2-Thinking

Direct answer: Kimi K2 Thinking is a model from Moonshot AI. 84.2% on GPQA Diamond, per Epoch AI. On OpenRouter, US$ 0.60 per 1 million input tokens and US$ 2.50 per 1 million output tokens.

✓ Good for

  • running on your own infrastructure (open weights)

✕ Not the best for

  • Not enough data in the open sources this section uses to build this block.

This block follows a rule of this section, using source data: if the model is in the top 25% of the metric, the item goes under "Good for"; if it is in the bottom half, it goes under "Not the best for". The middle band appears in neither. Price and context use OpenRouter; scores use Epoch AI or OpenRouter Benchmarks, in the latest version we checked.

Benchmarks

GPQA Diamond

?what it is
84.2%

highest score on this metric 96.4%

76º / 198 · Epoch AI, latest version we checked

OTIS Mock AIME

?
83.1%

highest score on this metric 100%

86º / 186 · Epoch AI, latest version we checked

Key specs

Origin
China
Family
Kimi Thinking provisional data
Weights?
open
License
other
Input US$/1M?
US$ 0.60
Output US$/1M
US$ 2.50
Context?
262,144 tokens
Parameters
1,026,408,240,256
Input
text
OpenRouter usage?
no data
Downloads (30 days)?
53,302
Use cases provisional data
Text Agents
Dates in sources
  • 2025, published, per Epoch AI
  • 2025, listed on OpenRouter
  • 2025, Hugging Face repo created

Version history

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch.

FAQ

What is Kimi K2 Thinking?

Kimi K2 Thinking is a model from Moonshot AI, with open weights, used for text, agents.

How much does Kimi K2 Thinking cost?

On OpenRouter, US$ 0.60 per 1 million input tokens and US$ 2.50 per 1 million output tokens.

What is the context window of Kimi K2 Thinking?

262,144 tokens, per OpenRouter.

Is Kimi K2 Thinking open source?

Yes, it has open weights. License: other.

What is Kimi K2 Thinking's GPQA Diamond score?

84.2% on GPQA Diamond, per Epoch AI.

Is Kimi K2 Thinking good for coding?

No data: there is no SWE-bench Verified measurement for it in open sources.

Who made Kimi K2 Thinking?

It was made by Moonshot AI, a lab from China.

provisional data Questions under review: Semrush had no API balance during collection. Answers use source data only.

Models from Moonshot AI

See lab

Sources

  • Epoch AI, CC BY 4.0, latest version we checked.
  • Hugging Face Hub, metadados públicos do Hub; licença de cada modelo no repositório, latest version we checked.
  • OpenRouter, dados públicos da API; exports de benchmarks e rankings em CC BY 4.0, latest version we checked.

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch. Family and version were grouped by rule from the name.