---
id: "2026-11-04-cat-wu-leaves-anthropic"
url: "https://postcutoff.com/e/2026-11-04-cat-wu-leaves-anthropic/"
as_of: "2026-11-09T21:13:00+01:00"
date: "2026-11-04"
date_precision: day
category: business
importance: 2
confidence: high
status: [Confirmed]
sources: 3
editor: human editor
human_review: null
version: "2026-11-05"
---

As of: 2026-11-09 21:13 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-11-04-cat-wu-leaves-anthropic/

# Cat Wu, product lead for Claude Code and Cowork, leaves Anthropic and joins OpenAI to lead Core Products PM

Cat Wu, product lead for Claude Code and Cowork, left Anthropic ahead of its IPO (Business Insider, Nov 4, 2026) and the same day said on X she is joining OpenAI to lead product management for Core Products; Claude Code engineer Thariq Shihipar had announced his own departure on Oct 24.

## Key facts
- Nov 4 (X, 2.63M views): Wu says she is 'joining OpenAI to lead product management for Core Products', working with Thibault Sottiaux; Greg Brockman and Sottiaux welcomed her
- Business Insider called the hire a coup for OpenAI weeks before Anthropic's IPO
- Departure announced by Wu herself (per BI/Techmeme)
- Follows Thariq Shihipar's exit (Oct 24)

## What happened

Written from Techmeme's summary; BI unreadable for us. Her new role at OpenAI is from her own X post (Nov 4).

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 188 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 127 days after its cutoff
- Gemini 4 Argon (training cutoff March 2026): 218 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 157 days after its cutoff

## Sources

1. [Business Insider: Cat Wu joins OpenAI from Anthropic](https://www.businessinsider.com/cat-wu-joins-openai-from-anthropic-product-lead-coup-2026-11) (businessinsider.com, press)
2. [Business Insider: Claude Code leader Cat Wu exits Anthropic before big IPO](https://www.businessinsider.com/claude-code-leader-cat-wu-exits-anthropic-before-big-ipo-2026-11) (businessinsider.com, press)
3. [Cat Wu on X: joining OpenAI](https://x.com/_catwu/status/2118137612577968402) (x.com, discussion)

## Changes

- 2026-11-05: She joins OpenAI as head of product management for Core Products (her X post, BI)
- 2026-11-04 (filed): Created

## Related

- 2026-10-26: [Anthropic files public S-1 (ticker ANT)](https://postcutoff.com/e/2026-10-26-anthropic-files-public-s1-ipo/index.md)
- People: [Greg Brockman](https://postcutoff.com/person/greg-brockman/), [Cat Wu](https://postcutoff.com/person/cat-wu/), [Thibault Sottiaux](https://postcutoff.com/person/thibault-sottiaux/), [Thariq Shihipar](https://postcutoff.com/person/thariq-shihipar/)
- Archived: 1 post, listed in https://postcutoff.com/e/2026-11-04-cat-wu-leaves-anthropic/index.json