One API vs Vercel AI Gateway
No leader: the top candidate One API has only 0.27 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
One API
An open-source system for managing and redistributing API access across multiple large language model providers—including OpenAI, Claude, Gemini, and others—through a single OpenAI-compatible API. Deploys as a self-contained binary or Docker container.
Vercel AI Gateway
A unified API gateway that routes requests across multiple AI providers (OpenAI, Anthropic, SpaceXAI, Gemini, and others), providing automatic failover, intelligent routing based on cost and latency, and consolidated billing with zero platform fees.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- OpenAI
- Google Gemini
One API
- Azure OpenAI
- Anthropic Claude
- DeepSeek
- ByteDance Douyin
- ChatGLM
- Baidu ERNIE Bot
- iFLYTEK Spark
- Alibaba Tongyi Qianwen
- 360 Brain
- Tencent Hunyuan
- Cloudflare Gateway
Vercel AI Gateway
- Anthropic
- SpaceXAI
- Cohere
- AssistLoop
- Vercel AI SDK
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.