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Bifrost

Open Source
★ 7,902 • Updated Sep 9, 2026, 03:06 AM

Bifrost is an open-source enterprise AI gateway designed to provide high-speed, reliable access to a broad ecosystem of large language models.

Use Cases ▼
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Serve as a unified API gateway for multiple LLM providers

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Route requests dynamically across models based on latency, cost, and availability

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Implement content moderation and safety guardrails for AI responses

04

Operate a clustered, highly available LLM backend for production workloads

05

Monitor and optimize LLM usage across an organization

06

Replace slower gateways like LiteLLM in latency-sensitive applications

What Problem It Solves ▼

Modern AI applications often need to communicate with many different LLM providers, but each provider has its own API, rate limits, and reliability characteristics. Managing these integrations directly is complicated and can introduce performance bottlenecks. Bifrost solves this by providing a unified, ultra-fast gateway that routes, load balances, and secures requests to thousands of models while maintaining sub-millisecond overhead, simplifying deployment and scaling.

Key Features ▼
✓

Extremely low overhead (<100 µs at 5k RPS)

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50x faster than LiteLLM

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Adaptive load balancing across providers

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Supports 1,000+ models

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Built-in guardrails and cluster mode

Overview

Bifrost is an open-source enterprise AI gateway designed to provide high-speed, reliable access to a broad ecosystem of large language models. According to its project description, Bifrost is up to 50x faster than LiteLLM, offering less than 100 microseconds of overhead at 5,000 requests per second. This level of performance makes it suitable for applications that demand real-time AI responses at scale.

Full Description ▼

A key feature of Bifrost is its adaptive load balancer, which intelligently distributes traffic across multiple model providers to optimize throughput, availability, and cost. The gateway also supports cluster mode, enabling horizontal scaling and high availability across multiple nodes. This allows enterprises to build resilient AI infrastructure that can handle growing demand without compromising on latency or reliability.

In addition to performance and scaling, Bifrost includes built-in guardrails for content safety and policy enforcement, along with compatibility for more than 1,000 different models. It centralizes access control, routing, and observability, simplifying the integration and management of LLMs within enterprise environments. As an open-source project, Bifrost offers organizations full control over their gateway layer without vendor lock-in.

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