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Kimi K2

by Moonshot AI

4.5
Benchmark RatingLaunched 2024Free · API from ¥4/M

Kimi K2 is Moonshot AI's flagship model, known for its massive 2M-token context window and strong agentic capabilities. It's one of China's most popular AI assistants, excelling at long-document analysis, coding, and multi-step reasoning.

2M contextAgenticLong-doc
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Pricing Tiers

Click a tier to see full details

Free — ¥0

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Kimi chat app

Plan: FreePrice: ¥0Tool: Kimi K2

Capabilities & Specs

Best for
Long-context + agentic tasks
Context window
2M
Image generation
Voice mode
Code execution
Web browsing
Offline / open weights
Public API
Starting price
Free · ¥4/M

Technical Benchmarks

Raw scores from public leaderboards (LMArena, OpenAI, Anthropic). Higher is better.

MMLU87%

Language Understanding

HumanEval85%

Code Generation

SWE-bench35%

Software Engineering

GSM8K95%

Math Reasoning

GPQA50%

Graduate QA

LMArena ELO1255

Chatbot Arena

Pros

  • Massive 2M context window
  • Strong agentic capabilities
  • Free consumer app

Cons

  • China-focused availability
  • Limited English ecosystem

Tasks Kimi K2 Covers

WritingCodingAgents