RouterBase - 2026 Pricing, Features, Reviews & Alternatives

RouterBase is an AI API gateway that routes to 200+ large language models from providers such as OpenAI, Anthropic, Google, and Meta through a single OpenAI-compatible endpoint. Developers integrate once using their existing OpenAI SDK, point it at RouterBase, and switch between models by changing a single string — no other code changes required.

The platform is built on three principles. All models are served through official provider endpoints or officially resold channels, so you always get the genuine model rather than a degraded or throttled version. Smart routing with automatic failover keeps applications online: when a provider errors or times out, requests fail over to an alternative instead of failing. Unified billing consolidates spend across all providers into one balance and one invoice, with usage analytics by model, key, and project.

RouterBase supports streaming, tool calling, vision inputs, JSON mode, and prompt caching, with SDKs for Python, Node.js, Go, and Ruby, plus integrations for LangChain, LlamaIndex, and the Vercel AI SDK. A built-in playground lets teams test and compare models before deploying to production. On most models, routing through RouterBase costs less than comparable aggregators, and a free tier is available to evaluate the platform before committing.