LiteLLM: The Open-Source AI Gateway for 100+ LLM Providers

Mon, 01 Jan 0001 00:00:00 +0000

The rapid proliferation of large language model (LLM) providers has created a new challenge for developers: each provider has its own API format, authentication method, pricing model, and feature set. Integrating with multiple providers – or even switching between them – traditionally required rewriting substantial amounts of integration code. LiteLLM solves this problem by providing a unified, OpenAI-compatible interface that works with over 100 LLM providers.

Developed by BerriAI, LiteLLM has become one of the most widely adopted tools in the AI infrastructure ecosystem. It serves dual roles: as a lightweight Python SDK for programmatic access, and as a proxy server (AI Gateway) that can be deployed as a central routing layer for teams and organizations.

LMRouter: Open-Source AI API Router for Multi-Provider Model Access

Mon, 01 Jan 0001 00:00:00 +0000

The explosion of AI language model providers has created a paradoxical situation for developers. On one hand, the diversity is extraordinary — OpenAI, Anthropic, Google, DeepSeek, Mistral, Groq, and dozens more are pushing the state of the art forward every month. On the other hand, each provider has its own API format, authentication mechanism, pricing model, and rate limits. Managing multiple provider integrations in a single application means writing and maintaining adapters for each one, handling failover logic, and tracking costs across disparate billing systems.

LMRouter solves this problem by providing a single, unified API gateway for all major language model providers. Built in TypeScript and released under the MIT license, LMRouter acts as a lightweight proxy that sits between your application and the various AI provider APIs. You configure your own API keys once, and LMRouter presents a single OpenAI-compatible endpoint that routes requests to the appropriate provider based on the model name.

LLM Gateway on SoloSoft

LiteLLM: The Open-Source AI Gateway for 100+ LLM Providers

LMRouter: Open-Source AI API Router for Multi-Provider Model Access