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Photon raises $4.5 million seed funding to build and deploy AI agents across messaging platforms using its Spectrum SDK

Funding Provisional 90% confidence first seen

Photon, which is backed by Vercel, announced a $4.5 million seed funding round. The funding will support a hosted agent platform intended to help developers deploy AI agents through messaging channels such as iMessage and WhatsApp using its Spectrum SDK and related tools.

The deal

Photon $4.5 million Seed · announced 1 Oct 2026

Investors Vercel

Deal terms as reported in the coverage below.

Source coverage

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