Moonshot AI's Kimi K3.1 Pro Highspeed comes to Amazon Bedrock
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Moonshot AI's Kimi K3.1 Pro Highspeed is now available on Amazon Bedrock. It is a post-trained version of Kimi K3 that keeps the same 3T-class open-weight architecture and 1-million-token context window, but was trained with more post-training compute for long-horizon agentic work and fewer factual errors. Moonshot AI reports 2–3 times the output speed of Kimi K3.1 Pro, and existing Kimi K3 users can switch by changing the model ID. On Bedrock, the Flex tier serves the model at half the Standard price in exchange for potentially longer response times, and on-demand quota is shared across the Standard, Priority and Flex tiers. Explicit prompt caching works on the Chat Completions, Responses and Invoke APIs but not on Converse, and cache writes are billed at a higher rate than standard input. The post also shows connecting the model to the OpenCode coding agent.
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- AWS Machine Learning BlogMoonshot AI's Kimi K3.1 Pro Highspeed launches on Amazon Bedrock
Moonshot AI's Kimi K3.1 Pro Highspeed is now available on Amazon Bedrock, a post-trained version of Kimi K3 with the same 3T-class open-weight architecture and 1-million-token context window, trained with more post-training compute for long-horizon agentic work and fewer factual errors. Moonshot AI reports 2–3 times the output speed of Kimi K3.1 Pro, and existing Kimi K3 users can switch by changing the model ID. The post shows Chat Completions, Responses and Converse API calls, the Flex tier at half the Standard price, explicit prompt caching with prompt_cache_breakpoint, and connecting the model to the OpenCode coding agent.
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