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Bifrost is an open-source LLM gateway written in Go that provides unified access to 15+ AI providers through a single OpenAI-compatible API. Benchmarks show it delivers 40x lower gateway overhead (~11 µs vs ~440 µs) and 68% lower memory usage compared to LiteLLM at 5,000 requests per second. Built on Go's goroutines for high concurrency, it includes semantic caching, automatic failover, adaptive load balancing, and built-in observability. The gateway handles provider routing, cost tracking, and rate limiting while maintaining near-zero latency overhead for production AI systems.

Bifrost: The Fastest LLM Gateway for Production-Ready AI Systems (40x Faster Than LiteLLM)

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