TechFlow news, June 27 — According to WSJ, OpenRouter, a marketplace platform for AI models, has announced the completion of a $40 million seed and Series A funding round, valuing the company at approximately $500 million. The round was co-led by Andreessen Horowitz and Menlo Ventures, with participation from Sequoia and several prominent industry investors. Funds will be used for product development, introducing new model types, and expanding enterprise support.
Founded in 2023 by Alex Atallah, co-founder and CTO of OpenSea, and Louis Vichy, OpenRouter provides a unified interface connecting over 400 large language models (LLMs), helping developers and enterprises simplify multi-model integration. Since launch, the company has attracted over one million developers using its API, with annual inference spending growing from $10 million in October 2024 to over $100 million by May 2025. Its customers range from startups to multinational corporations, supporting mission-critical traffic routing.
