Kimi K3.1 Pro is live on Fireworks

Moonshot AI's Kimi K3.1 Pro is available on Fireworks at launch, either serverless with pay-per-token pricing or on a dedicated deployment for reserved capacity. Moonshot post-trained K3.1 Pro from K3 and replaced K3's full-attention layers with sparse attention to make long contexts more efficient to serve. Fireworks reports it sits on the quality-for-cost frontier on five Specialized Intelligence Index benchmarks, ranking first of 19 on Sierra's τ³-Banking at 64.7%, and lists serverless pricing at $2.00 per million uncached input tokens, $0.20 cached input and $10.00 output.