# Kimi K3.1 Pro

> Moonshot's first flagship of the K3.1 series, a post-trained successor to Kimi K3: a 3T-class multimodal reasoning model with major gains in coding, 3D creation and financial modelling. 1M context, image input.

Human version: https://kymaapi.com/models/kimi-k3.1-pro
Live JSON: `GET https://kymaapi.com/v1/models` (no auth required)

## Facts

- **Model ID**: `kimi-k3.1-pro`: pass this as `model` in the request body
- **Creator**: Moonshot AI
- **Released**: 2026-10-23
- **Context window**: 1M tokens
- **Max output**: 944K tokens per response, a hard ceiling, not a default
- **Price**: $2.70 in / $13.50 out per 1M, cached input $0.27 per 1M
- **Capabilities**: tools, vision, reasoning, caching

## Call it

```bash
curl https://kymaapi.com/v1/chat/completions \
  -H "Authorization: Bearer $KYMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "kimi-k3.1-pro", "messages": [{"role": "user", "content": "Hello"}]}'
```

## See also

- All models: https://kymaapi.com/models.md
- Pricing: https://kymaapi.com/pricing.md
- Other models by Moonshot AI: https://kymaapi.com/models?q=Moonshot%20AI