Unified production AI inference platform with routing, caching, evaluation, fine-tuning, and the Ion engine on NVIDIA Grace and Blackwell.
Cumulus is a production-grade AI inference platform consolidating eight subsystems: OpenAI-compatible gateway, per-workflow router, prompt and KV cache, observability, continuous evaluation, one-click LoRA fine-tuning, custom open-weight hosting, and the Ion inference engine on NVIDIA Grace and Blackwell hardware. Ion delivers 30–50% more throughput than vLLM and SGLang; stacked caching reduces input tokens by 40–70%. Drop-in compatible with OpenAI SDK, Anthropic SDK, LangChain, LlamaIndex, and Vercel AI SDK. Cumulus is a product of Cumulus Labs.