MoonshotAI: Kimi K3

MoonshotAI

MoonshotAI: Kimi K3 by MoonshotAI costs $0.45 per 1M input tokens and $15.00 per 1M output tokens, with a 1M-token context window.

Pricing

Input (per 1M tokens)

$0.45

Output (per 1M tokens)

$15.00

Cached input (per 1M)

$0.28

Provider	Input / 1M	Output / 1M
openrouter	$0.45	$15.00
Moonshot AI	$3.00	$15.00

Specifications

Provider: MoonshotAI
Context window: 1M tokens
Parameters: —
Released: —
Open weights: —
Frontier model: No
Hugging Face: moonshotai/Kimi-K3

Benchmarks

Epoch Capabilities Index: 157.4
GPQA Diamond: 93.1
LMArena (Chatbot Arena) Elo: 1475.6
LMArena WebDev Elo: 1655.3

Speed & latency

Time to first token

0.65s

Output speed

159 tok/s

Fastest host: modal (via vercel-ai-gateway).

Compare MoonshotAI: Kimi K3 with…

MoonshotAI: Kimi K3 vs chatgpt-4o-latest$15.00/1M MoonshotAI: Kimi K3 vs GPT-5.4$15.00/1M MoonshotAI: Kimi K3 vs Claude Sonnet 4$15.00/1M MoonshotAI: Kimi K3 vs Claude Sonnet 4.5$15.00/1M MoonshotAI: Kimi K3 vs Claude Sonnet 4.6$15.00/1M MoonshotAI: Kimi K3 vs Claude Sonnet 4.6 Thinking$15.00/1M

FAQ

How much does MoonshotAI: Kimi K3 cost?

MoonshotAI: Kimi K3 is priced at $0.45 per 1M input tokens and $15.00 per 1M output tokens. Output tokens cost more than input.

What is MoonshotAI: Kimi K3's context window?

MoonshotAI: Kimi K3 supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.

Is MoonshotAI: Kimi K3 open weight?

Open-weight status for MoonshotAI: Kimi K3 is not recorded in our dataset.

Data as of 2026-10-15. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.