Last refreshed 2026-11-05. Next refresh: weekly.
Why use Kimi K3.1 Pro on OpenRouter?
OpenRouter offers Kimi K3.1 Pro with pay-as-you-go pricing at $2.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Kimi K3.1 Pro across 6 providers to find the best fit for your use caseInput / 1M
$2.00
Output / 1M
$10.00
Cache
read $0.20
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: moonshotai/kimi-k3.1-proModel ID
moonshotai/kimi-k3.1-proRequest example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
moonshotai/kimi-k3.1-pro.Gotchas
- Use provider model ID "moonshotai/kimi-k3.1-pro", not the LLMReference slug "kimi-k3-1-pro".
Compare Kimi K3.1 Pro Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Moonshot AI Kimi | $2.00 | $10.00 |
| Vercel AI Gateway | $2.00 | $10.00 |
| OpenRouter | $2.00 | $10.00 |
| Together AI | $2.00 | $10.00 |
| Fireworks AI | $2.00 | $10.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.00 |
| Output tokens | $10.00 |
Capabilities
VisionMultimodalReasoningJSON / Tool useStructured OutputsPrompt Caching
About Kimi K3.1 Pro
Kimi K3.1 Pro is the first model in Moonshot AI's K3.1 series, a post-trained version of Kimi K3. It has a 1,048,576-token context window, always-on reasoning with low, high and max effort, image and video input, tool calling and strict JSON Schema structured output. Released 2026-10-23 on Kimi.ai, Kimi Work, Kimi Code and the Kimi API; Moonshot published the weights on Hugging Face under the Kimi K3.1 Pro License.
Get Started
Model Specs
Released2026-10-23
Parameters2800B total; 104B active
Context1M
ArchitectureMixture of Experts