Best Alternatives to LiteLLM

Unified OpenAI-format interface for 100+ providers — proxy server. Compare 10 similar free AI tools.

1. OpenRouter — Unified API gateway to 30+ free models (Free: 30+ free models; OpenAI-compatible)
2. BentoML / OpenLLM — Deploy AI apps at scale (Free: Free OSS + cloud credits)
3. RouteLLM — Open-source strong/weak model router from UC Berkeley LMSYS (Free: Fully free; open source)
4. Langfuse — Framework-agnostic LLM tracing — generous free tier, European privacy (Free: Free self-host; cloud free tier)
5. Llama 3.x — Best all-around open LLM — 8B to 405B (Free: Fully open; 128K context)
6. Ollama — Run 100+ LLMs locally from the terminal — completely free (Free: Free; 100+ models locally)
7. Helicone — One-line proxy — cost tracking, 95% cache savings, 100+ model providers (Free: Free self-host; 100K free cloud requests)
8. LangChain — LLM orchestration — 700+ integrations (Free: MIT)
9. Qwen 2.5 / Qwen 3 — Apache 2.0; 29+ languages; 235B MoE (Free: Apache 2.0; no restrictions)
10. DeepEval — 30+ metrics + red teaming 40+ vulnerabilities (Free: Apache 2.0)

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