Anthropic · Series D

AI safety lab building Claude — a helpful, harmless, honest AI assistant.

Amount

$4B

Round

Series D

Valuation

$60B

Announced

Nov 2024

Investors

Lead investor

Lightspeed Venture Partners

Participating investors

Salesforce Ventures

Notes

Amazon additional investment

Other Anthropic rounds

Date	Round	Amount
Feb 2026	Series G	$30B	Details →
Sep 2025	Series f	$13B	Details →
Mar 2025	Series e	$4B	Details →
Sep 2024	Series d	$3.5B	Details →
Dec 2023	Series C	$7.3B	Details →
Sep 2023	Other	$5B	Details →
Apr 2022	Series B	$704M	Details →
May 2021	Series A	$124M	Details →