One API vs TensorZero
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.
TensorZero
A unified operations platform for LLM applications that provides infrastructure for routing API calls, tracking performance metrics, running experiments, and optimizing model and prompt configurations. Built as self-hosted open-source software designed for production-scale deployments.
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
One API
- Azure OpenAI
- Anthropic Claude
- Google Gemini
- DeepSeek
- ByteDance Douyin
- ChatGLM
- Baidu ERNIE Bot
- iFLYTEK Spark
- Alibaba Tongyi Qianwen
- 360 Brain
- Tencent Hunyuan
- Cloudflare Gateway
TensorZero
- Ollama
- Slack
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.