Bifrost

Overview

Bifrost is a high-performance AI gateway written in Go. It adaptively load balances requests across 1000+ models, enforces guardrails, and operates in cluster mode with under 100 µs overhead at 5,000 requests per second.

Best for

Best for
Engineering teams needing ultra-fast, scalable model routing with built-in safety controls

Use cases

• Route inference requests to the optimal model based on real-time performance
• Apply safety guardrails and policies across multiple AI model endpoints
• Scale model serving horizontally with cluster mode for high throughput

Notes

Bifrost is a high-performance AI gateway written in Go. It adaptively load balances requests across 1000+ models, enforces guardrails, and operates in cluster mode with under 100 µs overhead at 5,000 requests per second.

5,406 stars on GitHub. Last updated 2026-06-01. Licensed Apache-2.0.

Use cases

• Route inference requests to the optimal model based on real-time performance
• Apply safety guardrails and policies across multiple AI model endpoints
• Scale model serving horizontally with cluster mode for high throughput

Pros

• Extremely low latency overhead even at high request rates
• Supports over 1000 models, reducing vendor lock-in
• Built-in guardrails for safety without external services

Cons

• Community vendor may offer limited enterprise support
• Go language can be a barrier for teams without Go experience
• Advanced clustering adds operational complexity for small deployments

Indexed from awesome-langchain and enriched against its public facts.