MoonshotAI: Kimi K2 0711

MoonshotAI: Kimi K2 0711

moonshotai · Released Jul 11, 2025
65
Our Score

Kimi K2 Instruct is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32 billion active per forward pass. It is optimized for agentic capabilities, including advanced tool use, reasoning, and code synthesis. Kimi K2 excels across a broad range of benchmarks, particularly in coding (LiveCodeBench, SWE-bench), reasoning (ZebraLogic, GPQA), and tool-use (Tau2, AceBench) tasks. It supports long-context inference up to 128K tokens and is designed with a novel training stack that includes the MuonClip optimizer for stable large-scale MoE training.

$0.55 / 1M Input Price
$2.20 / 1M Output Price
131,000 tokens Context Window

Capabilities

Tool Use Function Calling

Architecture

ModalityText → Text
TokenizerOther

Performance Indices

Source: Artificial Analysis

26.3 Intelligence Index
22.1 Coding Index
38.5 Agentic Index
57 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 76.6%
Graduate-level scientific reasoning
HLE 7%
Humanity's Last Exam
MMLU Pro 82.4%
Multi-task language understanding
LiveCodeBench 55.6%
Live coding evaluation
SciCode 34.5%
Scientific computing
MATH 500 97.1%
Mathematical problem-solving
AIME 69.3%
Competition mathematics
AIME 2025 57%
Competition mathematics (2025)
IFBench 41.5%
Instruction following
LCR 51%
Long-context reasoning
TerminalBench Hard 15.9%
Agentic terminal tasks
τ²-Bench 61.1%
Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID moonshotai/kimi-k2
Providermoonshotai
Release Date July 11, 2025
Context Length131,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.55 $0.000550
Output $2.20 $0.002200

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

98.5%
Avg Uptime
665ms
Best Latency (TTFT)
37 tok/s
Best Throughput
3/3
Active Endpoints
Available via: DeepInfra, Novita, Moonshot AI

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