
Speko
OpenRouter for Voice AI: one API, every call on the best speech model
About
Speko is a router for voice models: one API key, and your voice agent runs on the speech-to-text, LLM, and text-to-speech models we measured as best for your language and use case. The measurements are public at benchmarks.speko.ai: we test new models the day they ship and re-route when the numbers change, so you rewrite nothing. We ran this bake-off by hand for four years at previous company, shipping production voice for Fortune 500s.
Topics
- Location
- San Francisco, CA, United States
- Team size
- 4 employees
- YC batch
- Summer 2026
- Status
- Active
- Stage
- Early stage





