from is now available on , along with , a faster version for interactive use.Kimi K3.1 ProMoonshot AIAI GatewayKimi K3.1 Pro Highspeed
K3.1 Pro is the first model in Moonshot's K3.1 series. It builds on with improvements in coding, 3D modeling, financial analysis, and agentic tasks, and keeps the 1M-token context window and image input.Kimi K3
For coding, K3.1 Pro handles work ranging from small fixes in an existing codebase to building a full project, including long agent runs with many steps. It builds front-end pages and interactive scenes with stronger typography and animation than earlier Kimi models. In finance, it can carry a task from start to finish, such as building a linked financial model with adjustable assumptions and scenarios, or writing research grounded in source documents. K3.1 Pro makes fewer factual errors than earlier Kimi models on difficult prompts.
Moonshot AI plans to release the model weights by November 4: support for more providers will follow.
Call either model through the , the , , and APIs, or a connected to AI Gateway. For Highspeed, use in place of the model name below.AI SDKChat CompletionsResponsesAnthropic Messagescoding agentmoonshotai/kimi-k3.1-pro-highspeed
Use as the model name:moonshotai/kimi-k3.1-pro
To use it in Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup:
Then select or in the agent. See the for details.moonshotai/kimi-k3.1-promoonshotai/kimi-k3.1-pro-highspeedcoding agents guide
Try Kimi K3.1 Pro in the .model playground
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , , , , and more.custom reportingZero Data Retention supportbudgets for API keysrouting rules
AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on (BYOK) requests.Bring Your Own Key
You can view available on AI Gateway.all language models