- Founded
- 2023
- Headquarters
- New York, NY
- Latest Round
- Series A
- Est. Valuation
- ~$500M
Investment Thesis
OpenRouter provides a single API that lets developers access over 400 large language models from providers like OpenAI, Anthropic, Google, and Mistral without rewriting code. Founded by Alex Atallah (former OpenSea co-founder and CTO).
OpenRouter processes over $100 million in annualized inference spend and reached $5 million in annualized revenue with just a 5-person team. Raised $40 million at a $500 million valuation.
Every AI provider ships a different API, pricing shifts overnight, models go down without warning, and devs must juggle dozens of vendors just to keep production apps running.
One API and one bill to access 400+ LLMs with automatic failover, load balancing, and smart routing — the reliability layer AI desperately needs to go from demos to production.
AI adoption is exploding toward multi-model architectures; inference spend on OpenRouter grew from $10M to $100M annualized in just seven months as teams bet on model diversity.
1M+ developers, 8.4 trillion tokens per month, $50M+ annualized revenue, and built to $100M inference throughput with only a 5-person team before their first raise.
Founded by Alex Atallah (OpenSea co-founder and former CTO, scaled to $30B+ in volume) and Louis Vichy (ex-Plasmo, ex-Intuit), shipping at startup speed with deep infra DNA.