Photon raises $4.5M seed to advance messaging-based AI agents
Photon, a startup that helps developers build AI agents for messaging channels like iMessage and WhatsApp, raised $4.5 million in a seed round co-led by Gradient and A*. The company says it has 40,000+ developer sign-ups, 10x revenue growth in four months, an open-source core that accounts for most usage, and a hosted, SOC 2/HIPAA-compliant platform with integrations across Vercel, LangChain and others.