LiteLLM vs One API
On the evidence we track, LiteLLM leads this comparison with a composite score of 58/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
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.
LiteLLM
LeaderAn open-source AI gateway that abstracts access to over 140 language model providers behind a single OpenAI-compatible API, enabling teams to implement spend tracking, request routing, and governance controls without changing application code.
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.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
LiteLLM
LeaderFree open-source self-hosted tier; Enterprise priced to scale
- Open SourceFree
- 100+ LLM providers, one OpenAI API
- Virtual keys, users & teams
- Spend tracking
- Budgets + rate limits
- LLM fallbacks
- +3 more
- EnterpriseContact sales
- Everything in Open Source, plus:
- SSO + SCIM
- OIDC / JWT auth
- Audit logs
- Secret managers + key rotation
- +5 more
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
- Gemini
- Google Gemini
LiteLLM
Leader- Anthropic
- Azure
- AWS Bedrock
- Cloudflare
- Google VertexAI
- Meta Llama
- Mistral AI
- NLP Cloud
- OVHCloud
- vLLM
- Nvidia NIM
- Slack
- Discord
- Microsoft Teams
- PagerDuty
- Prometheus
- AWS Secrets Manager
- Google Cloud Secret Manager
- MCP servers
- Bedrock
- VertexAI
- Langfuse
- Langsmith
- Datadog
- +9 more
One API
- Azure OpenAI
- Anthropic Claude
- DeepSeek
- ByteDance Douyin
- ChatGLM
- Baidu ERNIE Bot
- iFLYTEK Spark
- Alibaba Tongyi Qianwen
- 360 Brain
- Tencent Hunyuan
- Cloudflare Gateway
- Alibaba Qwen
- Tencent Yuan
- Baidu Wenxin
- Byte Doubao
- 360 AI Brain
- Claude
- Doubao
- Ernie
- Spark
- Qwen
- 360 Smart Brain
- Hunyuan
LiteLLM or One API: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.