free-ai-api-keys

moonshotai/kimi-k3.1-pro

MoonshotAI: Kimi K3.1 Pro

Context length
1049K
Input / 1M tokens
$2.00
Output / 1M tokens
$10.00
Released
2026-10-23
Modality
text+image+video->text

About MoonshotAI: Kimi K3.1 Pro

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...

Call MoonshotAI: Kimi K3.1 Pro

Via OpenRouter: one base URL for every provider.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "moonshotai/kimi-k3.1-pro",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

Direct on Moonshot AI (Kimi):

curl https://api.moonshot.ai/v1/chat/completions \
  -H "Authorization: Bearer $MOONSHOT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k3.1-pro",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

Moonshot AI (Kimi) keys

OpenRouter keys

OpenRouter keys work for moonshotai/kimi-k3.1-pro regardless of the upstream provider.