# Anthropic closes $65bn Series H at a $965bn valuation, files for IPO
> The largest single equity round attributed to an AI lab; run-rate revenue crosses $47bn and a confidential S-1 follows days later

**Meta:** type: event · date: 2026-05-28 · heads: L'argent de qui, Le jeu long · 5 takes · 3 lenses · 1 regions

## Summary

[Anthropic](/fr/entity/anthropic) closed a $65bn Series H on 28 May 2026 at a $965bn post-money valuation, the largest single equity round attributed to an AI lab, led by Altimeter, Dragoneer, Greenoaks and [Sequoia](/fr/entity/sequoia). Run-rate revenue crossed $47bn, up from ~$10bn at end-2025. Anthropic shipped Claude Opus 4.8 alongside the raise and promised Mythos-class models "in the coming weeks"; those models (Fable 5/Mythos 5) launched 9 June and were [pulled three days later under a US export-control directive](/fr/n/fable5-ai-export-controls). On ~1 June Anthropic filed confidentially for an IPO at the $965bn mark, days before [OpenAI's own confidential S-1](/fr/n/openai-confidential-ipo-trillion-2026). The round pairs with [~10GW of reserved compute](/fr/n/anthropic-compute-10gw-2026) across Amazon, Google/Broadcom and SpaceX.

## By the numbers

- $65bn, Series H size.
- $965bn, post-money valuation.
- $47bn, run-rate revenue, up from ~$10bn at end-2025.
- 28 May 2026, round announced; ~1 Jun, confidential IPO filing.
- Altimeter, Dragoneer, Greenoaks, Sequoia, lead investors.

## Why it matters

A $965bn private valuation places Anthropic ahead of OpenAI on headline price and underwrites an enormous compute build-out. The simultaneous IPO filing puts two frontier labs into the public-market pipeline at once. The Fable 5/Mythos 5 recall days after launch shows the capital and the regulatory risk are now scaling together.

## What to watch

- Whether the confidential S-1 converts to a public listing in 2026.
- Disclosed margins against the $47bn run-rate and compute liabilities.
- Whether Mythos-class access is restored after the export-control review.

## Regional takes (batched by bias / lens)

### unlabelled
- **Anthropic (Series H announcement)** (United States, en) — Anthropic's own announcement of a $65bn Series H at a $965bn post-money valuation, led by Altimeter, Dragoneer, Greenoaks and Sequoia; states run-rate revenue crossed $47bn, up from $10bn at end-2025, and that Mythos-class models will reach all customers in the coming weeks.
  Source: https://www.anthropic.com/news/series-h
- **ABC News** (United States, en) — 
  Source: https://abcnews.com/Technology/wireStory/anthropic-vaults-965-billion-valuation-new-funding-claude-133397439
- **Sacra** (United States, en) — 
  Source: https://sacra.com/c/anthropic/

### tech / financial
- **TechCrunch** (United States, en) — Frames the raise as vaulting Anthropic past OpenAI on per-round equity and toward a near-$1tn valuation ahead of an IPO. Notes the figure dwarfs prior AI raises once compute commitments are stripped out.
  > "Anthropic raised $65 billion, nearing a $1 trillion valuation ahead of an expected IPO as Claude demand surges."
  Source: https://techcrunch.com/2026/05/28/anthropic-raises-65-billion-nears-1t-valuation-ahead-of-ipo/

### competitive / product
- **Fortune** (United States, en) — Reports Anthropic leapfrogging OpenAI on valuation, the simultaneous release of Claude Opus 4.8, and the promise of Mythos-class models 'in the coming weeks', the models later pulled under US export-control order.
  > "Anthropic leapfrogs OpenAI with a record $965 billion valuation, says Mythos is coming in weeks."
  Source: https://fortune.com/2026/05/29/anthropic-raises-65-billion-at-record-965-billion-valuation-promises-mythos-ai-model-in-wide-release-in-coming-weeks-releases-claude-opus-4-8/

## Across the graph
- Related: [[openai-confidential-ipo-trillion-2026]], [[anthropic-compute-10gw-2026]], [[fable5-ai-export-controls]]
- Entities: Anthropic, Dario Amodei, Amazon, Google Deepmind, Sequoia, United States

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Canonical: https://rbtfl.xyz/fr/n/anthropic-series-h-ipo-2026