May 14, 2026 · OpenRouter
OpenRouter: Unified API for 290+ Models
OpenRouter is a routing layer that provides a single API endpoint and unified billing for 290+ models from every major provider: Anthropic, OpenAI, Google, Meta, Mistral, and dozens of open-source opt
Overview
OpenRouter is a routing layer that provides a single API endpoint and unified billing for 290+ models from every major provider: Anthropic, OpenAI, Google, Meta, Mistral, and dozens of open-source options. It uses the OpenAI SDK format, which means swapping in OpenRouter requires only a base URL and API key change.
Pricing
| Tier | Cost |
|---|---|
| Free | $0 -- 25+ models available at no cost |
| Pay-as-you-go | Provider list price + 5.5% platform fee |
| Enterprise | Custom pricing |
Free models cover a wide range of use cases. Paid model pricing passes through provider rates with a 5.5% markup. For specific models: Claude Opus 4.6 at $5.00/$25.00 per million tokens (matching Anthropic's own rate plus the 5.5% fee).
Key capabilities
Model routing and fallback: Requests automatically retry against alternative providers if the primary fails. Teams can configure fallback chains per-model.
Data policies: Custom policies let you restrict prompt routing to specific providers and opt out of logging.
Speech endpoints: Text-to-speech and transcription endpoints launched in May 2026, consolidating audio access alongside text under one API.
25+ free models: A rotating set of models (from Meta, Google, Mistral, and others) available at zero cost -- useful for high-volume classification tasks that don't need frontier model quality.
Where it fits
OpenRouter is the right layer for teams that want multi-provider access without maintaining separate API accounts, key rotation, and billing for each vendor. If you need Claude 4 and GPT-5.4 in the same pipeline, OpenRouter handles the auth and billing consolidation.
The 5.5% platform fee is the trade-off against calling providers directly. For high-volume production workloads, some teams run Portkey in front of direct provider calls instead, accepting the operational overhead in exchange for zero markup.
Field notes
- OpenRouter free model tier remains strong in May 2026: Meta Llama 3.3 70B is available at zero cost, covering most general-purpose non-frontier tasks. Teams using free-tier models report occasional throughput limits during peak hours. [community-thread, 2026-05-03]
See also
Field notes synthesized from build evidence ; postmortems, dev-team blogs, and vendor retros. Methodology is public. Corrections to hello@vybing.dev.