Positron raised $875 million at a valuation of $5 billion. The startup designs chips that make AI models run faster. Its previous round closed in February 2026 and valued it at $1 billion. NEA, Atreides Management, Valor Equity Partners and Andra Capital co-led the round. SemiAnalysis Capital, run by analyst Dylan Patel, also took part. Netscape co-founder Jim Clark joined as an investor. Positron disclosed the figures itself.
What changed
Positron was valued at $1 billion in February 2026.
- $875 million raised
- $5 billion valuation
- $230 million round in February
- $1 billion valuation in February
Sources