Kimi K3

moonshotai/kimi-k3

A chat model with a 1M-token context window, at $3.15 per million input tokens and $15.75 per million output tokens.

Details

Maker
moonshotai
Kind
Chat
Context window
1,000,000 tokens
Max output
131,072 tokens
Input
$3.15 per million tokens
Cached input
$0.315 per million tokens, 90% off
Cache write
Same as input
Output
$15.75 per million tokens
Capabilities
Reasoning, tool use, vision, file input
Takes
Text, image, pdf, video
Returns
Text
Zero data retention
Not on every provider
No training on requests
Not on every provider
Released
2026-07-16

Description

Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window.

Call it

curl
curl https://phantom.codes/v1/chat/completions \
  -H "Authorization: Bearer $PHANTOM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "moonshotai/kimi-k3",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Set PHANTOM_KEY to your key. Any OpenAI client works with the base URL https://phantom.codes/v1.