Moonshot AI

Kimi K2

131K ctxText Tools

Released Jul 11, 2025 · 112B tokens this week · 5 providers

Overview

Moonshot's open-weight mixture-of-experts, built for tool calling and agentic workflows. It is notably good at following structured API schemas and long instruction lists. A capable open alternative for assistants that live inside other software.

agentsprogrammingreasoning

Providers

Reference data — not yet measured from live traffic

PROVIDER		MAX OUT		OUTPUT /M				QUANT
DeepInfraCheapest	131K	33K	$0.55	$2.20	700ms	76	98.70%	fp8
Novita AI	131K	33K	$0.59	$2.38	760ms	66	98.40%	fp8
Together AI	131K	33K	$0.63	$2.51	195ms	96	99.35%	Full
Fireworks AI	131K	33K	$0.65	$2.60	600ms	112	99.50%	Full
Groq	66K	33K	$0.66	$2.64	209ms	380	99.70%	Full

Latency p50 reflects a provider’s API endpoint responsiveness — the round-trip to its API, not per-token inference time. These figures, with throughput and uptime, are reference data until the gateway aggregates its own traffic.

Price comparison

Blended $ per 1M tokens

DeepSeek V3.2$0.37

Kimi K2$1.79

Gemini 3 Flash$1.95

GPT-5.2$10.94

Claude Sonnet 4.5$12.00

Blended rate per 1M tokens, weighted one part prompt to three parts completion — roughly the shape of a chat workload. Your mix will move the number.

Call it

OpenAI-compatible — swap the base URL and go

curl https://model.cards/api/v1/chat/completions \
  -H "Authorization: Bearer $MODELCARDS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "moonshotai/kimi-k2",
    "messages": [
      { "role": "user", "content": "Summarize the tradeoffs of speculative decoding." }
    ]
  }'