One API.
200+ models.
Call OpenAI, Anthropic, Google, Meta, and Mistral through a single endpoint. We manage every provider key. You just pick a model and send your request.
Routing capabilities
Smart routing. Zero effort.
Smart Load Balancing
usage-based · latency-basedRoutes requests across multiple deployments using configurable strategies. Distribute load by usage, optimize for latency, or minimize cost. Automatic health-aware routing skips unhealthy endpoints.
Request
Router
GPT-4o
Claude 3.5
Gemini
Automatic Fallbacks
seamless retryIf the primary model fails or times out, seamlessly retry on a backup provider. Your users never see the error.
Retries & Timeouts
configurableSet per-org retry count, timeout duration, and cooldown between attempts. Fine-tune reliability for your workload.
OpenAI-Compatible API
zero migrationDrop-in compatible with the OpenAI SDK. Change two lines — base URL and API key — and you're routing through 200+ models. Works with Python, Node.js, Go, Ruby, Java, C#, PHP, and Rust.
Model Catalog
200+ models from every major provider. New models added within hours of launch.
Tag-Based Routing
Filter models by capability tags — vision, code, long-context, multilingual. Route requests to the right subset.
The routing pipeline
Every request flows through the same path. Guardrails, routing, and cost tracking happen transparently.
Your app
OpenAI SDK
Nemo Backend
Guardrails + config
Strategy select
Load balance / fallback
Provider
GPT-4o, Claude, etc.
Response
Post-scan + deliver
<1ms
Routing overhead
200+
Models
15+
Providers
FAQ
Route with confidence
200+ models. Automatic fallbacks. Zero provider config. Your first request routes automatically.