Bifrost vs Stainless (2026)
Updated March 10, 2026
vs
Overview
Rating
10.0 / 10
Rating
10.0 / 10
Best For
Engineering teams that want a self-hosted, open-source LLM gateway in their own infrastructure
Best For
AI companies and developers building API clients
Product Summary
Bifrost is an open-source LLM gateway from Maxim AI, written in Go, that puts 1,000+ models from 20+ providers behind one OpenAI-compatible API.
Product Summary
Powers the official SDKs for OpenAI, Anthropic, and others. The de facto gateway interface layer.
Starting Price
Free
Starting Price
$0Per month
Free Trial
Yes
Free Trial
Yes
Free Version
Yes
Free Version
Yes
Website
Website
Key features
Core capabilities each platform advertises.
- OpenAI-compatible API for 1,000+ models from 20+ providers
- Automatic failover and load balancing
- Semantic caching
- MCP gateway for tool calls
- SDK generation
- API interface
- Type-safe clients
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Apache 2.0 license, free to self-host
- 1,000+ models behind one OpenAI-compatible API
- Starts with a single npx command or Docker image
- Semantic caching and MCP gateway included
Cons
- You run, scale, and monitor the gateway yourself
- Observability is exported to other tools rather than stored in the gateway
- Evals live in Maxim's separate platform, priced per seat from $29/month
- Guardrails, SSO, RBAC, and audit logs require Enterprise
Pros
- Automates SDK dev
- Type-safe code
- Multi-language
Cons
- Requires OpenAPI
- Limited customization
Bifrost or Stainless — which should you choose?
Choose Bifrost if you wantChoose if you want
- Self-hosting an LLM gateway in your own infrastructure
- Failing over between providers during outages
- Cutting repeat-request cost with semantic caching
- Governing tool calls through an MCP gateway
Choose Stainless if you wantChoose if you want
Data not available
Compare Bifrost and Stainless on your own traffic
10KFree traces/mo
1,000+Models
5 minSetup
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.
Try Respan free