Andrew Ambrosino

Accomplishments

• Member of Technical Staff at OpenAI who leads development of the Codex desktop app.¹²³⁴
• Wrote in November 2026 that he also leads ChatGPT Space.⁵
• Was a founding team member on the Codex app, which he said launched in February 2026.⁹⁴
• In September 2026, posted that the team rewrote ChatGPT Web on the desktop app codebase and launched a new Codex Cloud.¹⁰¹¹
• Co-founded Catch (Y Combinator W19), which raised $18.1 million before shutting down in 2023 and later being acquired.⁷⁸¹²¹³

OpenAI, Codex, and ChatGPT

Ambrosino's site lists him as a Member of Technical Staff at OpenAI beginning in 2025. His X profile describes the work as Codex and ChatGPT at OpenAI. In an August 2026 AppStories interview he used the same staff title and said he was one of the founding team members on the Codex app, later growing the team that runs that app, which had also become a ChatGPT app.^1144159

Lenny's Podcast, in a June 28, 2026 episode, introduced Ambrosino as the person who leads development of the Codex desktop app at OpenAI. In an April 16, 2026 VentureBeat report on a Codex desktop update, he was quoted as an OpenAI technical staffer on the Codex team and as lead of Codex app development, describing Codex's ability to click, launch, and type into other apps on a user's machine as part of a Computer Use expansion.²³

In a Stack Overflow podcast recorded at OpenAI Dev Day 2026 and published October 20, 2026, Ambrosino said he works on the desktop app, Space, and Codex. He said the Codex app launched in February and that the team ran weekly "Codex Thursdays" updates afterward. He also described ChatGPT Work as bringing the Codex harness to a broader audience, and ChatGPT Space as a collaborative workspace inside ChatGPT and Codex for teams and their agents.⁴

On September 29, 2026, Ambrosino wrote that over the previous five weeks his team had completely rewritten ChatGPT Web on top of the desktop app codebase, and that this was why launches such as Dots, Space, and Codex Cloud could ship on web and desktop the same day. In a post the same day he said the original Codex product had been cloud-based, then the field moved into local agents, and that OpenAI was returning with a new Codex Cloud.¹⁰¹¹⁴

On November 5, 2026, in a reply on X, Ambrosino wrote that he also leads ChatGPT Space. That is his own description of the work; it is not an independently published official title such as Head of Codex, a role the wiki already records for Thibault Sottiaux.⁵

Noyo

Before OpenAI, Ambrosino's site lists Head of Frontend & Design at Noyo from 2023 to 2025, then Head of Product in 2025. His GitHub profile likewise says he was previously head of product at Noyo. The Noyo work page on his site describes leading product and engineering teams and shipping benefits-platform features, including in-product AI work; those details come from Ambrosino's own account.¹¹⁶⁶

Catch

Ambrosino co-founded Catch with Kristen Anderson. Catch was a Y Combinator Winter 2019 company that sold health insurance, retirement savings, and tax withholding directly to freelancers and other workers without employer benefits. Y Combinator lists the company as founded in 2017 in New York City, with Ambrosino as founder, CTO, and CPO, and lists its status as acquired. Ambrosino's site dates his Catch work 2016–2023.^7812117

On July 30, 2021, TechCrunch reported a $12 million Series A led by Crosslink, with participation from earlier investors including Khosla Ventures, and said Catch had previously raised $6.1 million, for $18.1 million in total funding. On March 6, 2023, TechCrunch reported Anderson's announcement that she and Ambrosino were shutting Catch down; a later email to users, obtained by TechCrunch, said the company could not continue operating in the current market and that accounts would close on April 6. On October 19, 2023, TechCrunch reported that Alexa Irish and Laura Speyer had acquired Catch from Anderson and Ambrosino and were relaunching it around health, dental, and vision insurance.⁸¹²¹³

Earlier work

Ambrosino's site lists earlier roles as Senior Design Engineer at MITRE from 2011 to 2015, a product-design Kleiner Perkins (KPCB) Design Fellow role at Upthere in 2014, and a software-engineering internship at Upthere in 2013. In the Stack Overflow interview he said he did early website work in high school, earned a computer science degree, and also did a lot of design. This profile does not name a university; public pages reviewed for this draft did not clearly identify the school.¹⁴

Work and contributions

• Codex desktop app Proprietary product

  Leads development of OpenAI's Codex desktop app, including the February 2026 app launch and later Computer Use and desktop–web unification work.²³⁴¹⁰

• ChatGPT Space Proprietary product

  Leads ChatGPT Space, a collaborative workspace inside ChatGPT and Codex, by his own November 2026 description and his Dev Day interview.⁵⁴

• Catch Proprietary product

  Co-founded Catch, a Y Combinator Winter 2019 benefits platform for independent workers; the company later shut down in 2023 and was acquired by new owners.⁷⁸¹²¹³

Timeline

1. 2013Software engineering intern at Upthere, according to his site.¹
2. 2014Product design fellow at Upthere in a Kleiner Perkins (KPCB) Design Fellow role, according to his site.¹
3. 2011His site lists a Senior Design Engineer role at MITRE from 2011 to 2015.¹
4. 2019Catch was in the Y Combinator Winter 2019 batch; Ambrosino is listed as founder, CTO, and CPO.⁷
5. Jul 30, 2021Catch raised a $12 million Series A led by Crosslink, bringing total funding reported by TechCrunch to $18.1 million.⁸
6. Mar 6, 2023Catch's co-founders announced they were shutting the company down.¹²
7. Oct 19, 2023TechCrunch reported that new owners had acquired Catch from Anderson and Ambrosino and were relaunching it.¹³
8. 2023Joined Noyo as Head of Frontend & Design, according to his site; later Head of Product in 2025.¹¹⁶⁶
9. 2025His site lists the start of his OpenAI Member of Technical Staff role in 2025.¹
10. Feb 2026In later interviews he said the Codex app launched in February 2026, and that he had been a founding team member.⁴⁹²
11. Apr 16, 2026Quoted by VentureBeat as lead of Codex app development in coverage of a Computer Use desktop update.³
12. Jun 28, 2026Appeared on Lenny's Podcast, introduced as leading development of the Codex desktop app.²
13. Aug 31, 2026Interviewed on AppStories about Codex, ChatGPT unification, and Computer Use.¹⁵⁹
14. Sep 29, 2026Posted that the team had rewritten ChatGPT Web on the desktop app codebase and that OpenAI was launching a new Codex Cloud.¹⁰¹¹
15. Oct 20, 2026Stack Overflow published a Dev Day interview in which he discussed the desktop app, ChatGPT Work, and ChatGPT Space.⁴
16. Nov 5, 2026Wrote on X that he also leads ChatGPT Space.⁵

Other documented roles

Roles the sources document that are not confirmed as current.

• Head of Product; earlier Head of Frontend & Design, Noyo (2023 – 2025)¹¹⁶⁶
• Co-founder, CTO/CPO (Y Combinator W19), Catch (2016 – 2023)¹¹⁷⁷⁸
• Senior Design Engineer, MITRE (2011 – 2015)¹
• Product Design, KPCB Design Fellow (2014); Software Engineer Intern (2013), Upthere (2013 – 2014)¹

Where they work

• OpenAI 108 people in the wiki

Same company

Others in the wiki with a current role at OpenAI.

• Sam AltmanCo-founder and Chief Executive Officer
• Greg BrockmanCo-founder and President
• Vijaye RajiCTO of Applications; founder of Statsig
• Jakub PachockiChief Scientist
• Atty EletiProduct Manager, Voice
• Peter SteinbergerWorks on agents (since February 2026); leads the Claw Labs team
• Jerry TworekResearch lead
• Fotis ChantzisAgent Security Lead
• Adrien EcoffetResearch scientist
• Ingmar KanitscheiderResearcher

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