Moonshot AI

Kimi K2 Thinking

Tool callingStructured outputReasoning
Kimi K2 Thinking model card cover

Thinking Kimi model for slower research passes, planning, and hard technical questions

Context
262K
Released
11mo ago
Parameters
—
Input / 1M tokens
$0.60
Output / 1M tokens
$2.50
Cached input / 1M tokens
$0.15

Sources:models.devOpenRouter

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

Other published benchmarks

EvaluationReported score and source
FrontierMath-2025-02-28-Private
21.4%
Epoch AI · moonshotai/Kimi-K2-Thinking
Epoch AI evaluation
FrontierMath-Tier-4-2025-07-01-Private
0.0%
Epoch AI · moonshotai/Kimi-K2-Thinking
Epoch AI evaluation
Terminal Bench
35.7%
Terminal-Bench v2 Leaderboard · kimi-k2-thinking
Agent: Terminus 2
Terminal-Bench v2 Leaderboard
Original-source terms apply
Terminal Bench
35.7%
https://www.tbench.ai/leaderboard/terminal-bench/2.0 · kimi-k2-thinking
Agent: Terminus 2
https://www.tbench.ai/leaderboard/terminal-bench/2.0
Original-source terms apply

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

Specifications

Developer
Moonshot AI
Model family
Kimi
Type
Language model
Predecessor
—
Successor
—
Released
November 6, 2025
Model ID
moonshotai/kimi-k2-thinking
Openness
Open weights
License
—
Parameters
—
Input modalities
text
Output modalities
text
Modality
text->text
Tokenizer
Other
Max output tokens
98K
Knowledge cutoff
2024-08
Source freshness
Metadata synced Oct 8, 2026, 10:17 PM UTC
Additional source evidence
Source model
moonshotai/kimi-k2-thinking
Source family
kimi-thinking
Last updated
2025-11-06
Knowledge cutoff
2024-08
Model context
262K
Model output limit
262K
Open weights
Yes
File attachments
No
Reasoning
Yes
Tool calling
Yes
Temperature control
Yes

Downloadable weights

Published benchmarks

BenchmarkScoreEvaluation detailsEvidence
SWE-Bench Verified71.3 · resolved—Source
Complete source record (JSON)
{
  "id": "moonshotai/kimi-k2-thinking",
  "name": "Kimi K2 Thinking",
  "description": "Thinking Kimi model for slower research passes, planning, and hard technical questions",
  "family": "kimi-thinking",
  "last_updated": "2025-11-06",
  "knowledge": "2024-08",
  "attachment": false,
  "reasoning": true,
  "tool_call": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 262144,
    "output": 262144
  },
  "benchmarks": [
    {
      "name": "SWE-Bench Verified",
      "score": 71.3,
      "source": "https://huggingface.co/moonshotai/Kimi-K2-Thinking",
      "metric": "resolved"
    }
  ],
  "release_date": "2025-11-06",
  "open_weights": true,
  "weights": [
    {
      "label": "Hugging Face",
      "url": "https://huggingface.co/moonshotai/Kimi-K2-Thinking"
    }
  ]
}

Infrastructure

Provider availability

All providers
ProviderEndpointContextInput /M tokensOutput /M tokensCached input /M tokensCache write /M tokensUptime 1dData handling
Googlegoogle-vertex262K$0.60$2.50——100.00%
ZDR: Yes

Training: Unknown

Prompt logging: Unknown

Retention: Unknown

Checked 2026-10-15

Novitanovita/bf16262K$0.60$2.50$0.15—100.00%
ZDR: Yes

Training: Unknown

Prompt logging: Unknown

Retention: Unknown

Checked 2026-10-15

Provider data:OpenRouter

Deployment graph

Can I run this?

Vertical Tabs only shows compatibility when it has structured evidence tying this exact model to hardware, runtime, quantization, memory use, and observed performance.

Browse hardware