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LiteLLM vs one-api

Side-by-side comparison of features, pricing, ratings, and alternatives.

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LiteLLM
LiteLLMOpen-source gateway that unifies 140+ LLM providers behind a single OpenAI‑compatible API
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one-api
one-apiUnified API for LLM management and key redistribution
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Overview
Description

LiteLLM is an open‑source AI gateway and LLM proxy that lets platform teams expose a single, OpenAI‑compatible endpoint for over 1,800 models from 140+ providers. It centralizes authentication, key management, SSO, budgeting, guardrails, and cost tracking, simplifying governance and compliance across diverse AI services. Designed for engineering organizations, LiteLLM offers routing, optimization, and observability features that help control usage, reduce spend, and enforce policy while providing a consistent developer experience across the entire model ecosystem.

one-api is an LLM API management and key redistribution system that supports multiple providers under a single API. It provides a unified interface for managing keys and redistributing them to various applications. The system is designed to be easy to use and deploy, with a single binary and Docker-ready architecture.

Pricing
Freemium
Free
Category
API Tools
API Tools
Best for
Platform teams and engineering organizations that need to provide secure, governed access to many AI models and control usage, cost, and compliance.
Developers and researchers
Specifications
open source
Yes
Yes
api available
Yes
Yes
support options
Community forum, GitHub Issues, Paid support plans
GitHub Issues, Community Forum
key integrations
Slack, Zapier, LangChain, Terraform
—
deployment
—
Self-hosted
github stars
—
35,964
primary language
—
Go
Pros & Cons
Pros
  • Single unified API reduces integration complexity
  • Extensive provider coverage and model catalog
  • Open source with active community contributions
  • Built‑in cost and usage governance tools
  • Unified API for multiple LLM providers
  • Easy to use and deploy
  • Single binary and Docker-ready architecture
  • Supports multiple models
Cons
  • Self‑hosting requires operational overhead
  • Advanced guardrail configuration can be complex
  • Enterprise‑grade support may require paid plan
  • Limited documentation
  • Limited support options
  • Limited customization options
Community & Metrics
Upvotes
0
0
User rating
Not enough data
Not enough data

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LiteLLM
LiteLLM

Open-source gateway that unifies 140+ LLM providers behind a single OpenAI‑compatible API

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The Verdict

AI-generated from listing data

Both tools provide a unified OpenAI‑compatible API for many LLM providers, but one‑api is a free, single‑binary solution with limited governance features, while LiteLLM adds extensive routing, budgeting, and guardrail capabilities at a freemium cost and higher operational complexity.

Key differences

  • •LiteLLM offers dynamic routing, cost‑aware model selection, and per‑user budgeting; one‑api does not.
  • •One‑api ships as a single executable/Docker image with built‑in load‑balancing and failover; LiteLLM requires separate Docker/Helm deployment.
  • •LiteLLM includes built‑in SSO, content filtering, rate limits, and plugin extensibility; one‑api provides only basic key redistribution.
  • •Support options differ: one‑api relies on GitHub issues/community; LiteLLM adds paid support plans.
  • •Provider coverage is similar, but LiteLLM explicitly lists 140+ providers and key integrations (Slack, Zapier, etc.).
DimensionWinner

Pricing & value

LiteLLM is freemium with paid support options, offering more governance features; one‑api is completely free but less feature‑rich.

LiteLLM

Ease of use / learning curve

One‑api is a single binary with one‑command Docker deployment; LiteLLM requires Docker/Helm setup and configuring routing rules.

one-api

Features & depth

LiteLLM provides routing, budgeting, SSO, guardrails, and plugin system; one‑api focuses on key redistribution and basic load balancing.

LiteLLM

Integrations & ecosystem

LiteLLM lists integrations (Slack, Zapier, LangChain, Terraform); one‑api mentions only a web dashboard.

LiteLLM

Support

LiteLLM offers community, GitHub, and paid support plans; one‑api only has community forum and GitHub issues.

LiteLLM

Security & privacy

LiteLLM includes SSO, centralized key vaults, and configurable guardrails; one‑api does not mention these controls.

LiteLLM

Scalability

Both are self‑hosted and Docker‑ready; scalability depends on user’s own infrastructure.

Tie

Choose LiteLLM if…

Platform teams requiring advanced routing, cost governance, SSO, and enterprise support.

Choose one-api if…

Developers needing a quick, free, single‑binary LLM gateway with minimal setup.

Common questions

Is there any cost to use either product?

One‑api is free. LiteLLM is freemium; core features are free but paid plans are needed for enterprise support.

Which tool provides built‑in cost control and budgeting?

LiteLLM offers per‑user/project budgets, real‑time spend alerts, and cost‑aware routing; one‑api does not.

How much operational effort is required to deploy each?

One‑api is a single executable with one‑command Docker deployment. LiteLLM requires Docker or Helm deployment and configuration of routing and guardrails.