Kimi K3 on Fireworks: Frontier Intelligence You Can Own

This post announces the availability of Kimi K3 on the Fireworks AI platform, highlighting its frontier-level intelligence and cost-efficiency compared to closed models. It details Kimi K3's performance on various benchmarks (coding, writing, legal analysis, multimodal) and introduces Kimi Delta Attention, a custom kernel adaptation for efficient large context processing. The post emphasizes the benefits of serving and fine-tuning Kimi K3 on Fireworks, including US-hosted inference, zero data retention, and the ability to start training from a laptop. It also contrasts Kimi K3's cost-effectiveness with Opus 5, showing a significant advantage per task.