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Moonshot AI · Released Nov 6, 2025

Kimi K2 Thinking

Kimi K2 Thinking is Moonshot AI’s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning. Built on the trillion-parameter Mixture-of-Experts (MoE) architecture introduced in...

ReasoningOpen weights
Compare in showdown → OpenRouter ↗ All Moonshot AI models
Released
Nov 6 2025
Context window
262K 98K out
Input / 1M tokens
$0.60
Output / 1M tokens
$2.50

Where to run it

2 providers compared

All 2 providers charge the same: $0.60 / $2.50 per 1M input / output tokens.

ProviderInputOutputCache readContextMax outputUptimevs. best
NovitaBF16 $0.60 $2.50 $0.15262K98K100%24h Cheapest
Google $0.60 $2.50 —262K236K97.3%24h Cheapest

Value

Price vs. performance

9 models score higher for the same price or lesson Terminal-Bench, e.g. Gemini 3 Flash Preview.
3.4%30.5%57.6%84.7% $0.01$0.10$1.00$10.00$100.00 Qwen3.6 35B A3B (Qwen) — 24.6% · $0.10/1M in GPT-5.5 (OpenAI) — 84.7% · $5.00/1M in Claude Opus 4.7 (Anthropic) — 80.2% · $5.00/1M in Grok 4.20 (xAI) — 57.3% · $1.25/1M in MiniMax M2.7 (MiniMax) — 45.1% · $0.30/1M in Qwen3.5-9B (Qwen) — 9.2% · $0.10/1M in GPT-5.4 (OpenAI) — 81.8% · $2.50/1M in GPT-5.3-Codex (OpenAI) — 78.4% · $1.75/1M in Gemini 3.1 Pro Preview (Google) — 80.2% · $2.00/1M in Claude Sonnet 4.6 (Anthropic) — 53.4% · $3.00/1M in MiniMax M2.5 (MiniMax) — 42.7% · $0.27/1M in GLM 5 (Z.ai) — 52.4% · $0.60/1M in Claude Opus 4.6 (Anthropic) — 79.8% · $5.00/1M in GPT-5.2-Codex (OpenAI) — 66.5% · $1.75/1M in MiniMax M2.1 (MiniMax) — 36.6% · $0.30/1M in GLM 4.7 (Z.ai) — 33.4% · $0.54/1M in Gemini 3 Flash Preview (Google) — 64.3% · $0.50/1M in GPT-5.2 (OpenAI) — 64.9% · $1.75/1M in GPT-5.1-Codex-Max (OpenAI) — 60.5% · $1.25/1M in DeepSeek V3.2 (DeepSeek) — 39.6% · $0.28/1M in Claude Opus 4.5 (Anthropic) — 63.1% · $5.00/1M in GPT-5.1 (OpenAI) — 47.6% · $1.25/1M in GPT-5.1-Codex (OpenAI) — 57.8% · $1.25/1M in GPT-5.1-Codex-Mini (OpenAI) — 61.6% · $0.25/1M in MiniMax M2 (MiniMax) — 30.0% · $0.26/1M in Claude Haiku 4.5 (Anthropic) — 35.5% · $1.00/1M in GLM 4.6 (Z.ai) — 24.5% · $0.55/1M in Claude Sonnet 4.5 (Anthropic) — 46.5% · $3.00/1M in DeepSeek V3.2 Exp (DeepSeek) — 39.6% · $0.27/1M in GPT-5 (OpenAI) — 49.6% · $1.25/1M in GPT-5 Mini (OpenAI) — 34.8% · $0.25/1M in GPT-5 Nano (OpenAI) — 21.8% · $0.05/1M in gpt-oss-120b (OpenAI) — 18.7% · $0.15/1M in gpt-oss-20b (OpenAI) — 3.4% · $0.018/1M in Claude Opus 4.1 (Anthropic) — 38.0% · $15.00/1M in Gemini 2.5 Flash (Google) — 17.1% · $0.30/1M in Gemini 2.5 Pro (Google) — 32.6% · $1.25/1M in Gemini 2.5 Pro Preview 06-05 (Google) — 32.6% · $1.25/1M in Kimi K2.5 (Moonshot AI) — 43.2% · $0.50/1M in Kimi K2 Thinking (Moonshot AI) — 35.7% · $0.60/1M in Kimi K2 Thinking

Kimi K2 Thinking Other Moonshot AI Other labs Value frontier · Terminal-Bench vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.

Benchmarks

2 benchmark scores

BenchmarkScoreRankLeader
Terminal-BenchSoftware engineering · Tasks completed with the programs in a real terminal (best agent) 35.7% #27of 40 GPT-5.584.7%
METR time horizonSoftware engineering · Length of software task solved more often than not 54 min #11of 13 Claude Opus 4.612 h

Specs

Details

Model ID
moonshotai/kimi-k2-thinking
Developer
Moonshot AI
Release date
Nov 6, 2025 ·
Context window
262,144 tokens
Max output
98,304 tokens
API price
$0.60 / $2.50 per 1M input / output tokens
Providers
2
Input types
text
Reasoning
Yes
Tool calling
Yes
Open weights
Yes
Free tier
No

Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.