MoonshotAI: Kimi K3.1 Pro
by Moonshot AIMoonshotAI: Kimi K3.1 Pro is a large language model from Moonshot AI. It costs $2.00 per million input tokens and $10.00 per million output tokens. Its context window is 1.0M tokens.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cached input / 1M
- $0.200
- Context window
- 1.0M
On repeated prefixes
tokens
Who serves it cheapest
1 hosts serve Kimi K3.1 Pro. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| Moonshot AICheapestmxfp4 | $2.00 | $10.00 | 1.0M | - | 100.0% |
Benchmarks
Independent scores published alongside the catalogue.
- Intelligence index
- 55.1
About 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...
Specifications
| Model ID | moonshotai/kimi-k3.1-pro |
|---|---|
| Provider | Moonshot AI |
| Context window | 1.0M tokens |
| Max output | 944K tokens |
| Input modalities | text, image, video |
| Output modalities | text |
| Knowledge cutoff | - |
| Open weights | No |
| Released | October 23, 2026 |
Cheaper alternatives
Models that cost less than Kimi K3.1 Pro while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does MoonshotAI: Kimi K3.1 Pro cost?
$2.00 per million input tokens and $10.00 per million output tokens. Cached input reads cost $0.200 per million tokens.
What is the context window of MoonshotAI: Kimi K3.1 Pro?
1.0M tokens, with up to 944K tokens of output per request.
Confirm against the source: Moonshot AI official pricing.