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Series D (Amazon Strategic Investment)

Equity
$4Braised
$18Bpost-money valuation
Company
Lead Investor
Amazon
Date
Sep 2023
Source
Notes

Amazon committed up to $4B paid in two tranches (first in Sept 2023, second in Nov 2024). Brought total Amazon investment to $8B. Included AWS as primary cloud and training partner. Valuation reached $18.1B by early 2024.

Other Rounds by Anthropic

7
RoundRaisedValuationLead InvestorDate
Series G(equity)$30B$380BGIC / CoatueFeb 2026
Series F(equity)$13B$183BICONIQSep 2025
Series E(equity)$3.5B$62BLightspeed Venture PartnersMar 2025
Series D(equity)$750M$18BMenlo VenturesFeb 2024
Series C(equity)$450MSpark CapitalMay 2023
Series B(equity)$580M$4BFTX / Sam Bankman FriedApr 2022
Series A(equity)$124M$550MDustin Moscovitz / Jaan TallinnMay 2021
Series D (Amazon Strategic Investment) | Funding Rounds | Longterm Wiki