Peter Steinberger

Creator of OpenClaw · OpenAI

Portrait painted after an image by dotconferences · CC BY 3.0

About

Peter Steinberger is an Austrian software developer, born in 1986, who studied at the Vienna University of Technology. In 2010 he founded PSPDFKit, a PDF framework for iOS that grew into a document-processing company inside apps used by nearly a billion people, bootstrapped until a strategic investment from Insight Partners in 2021; it now operates as Nutrient. After leaving the company and stepping away from tech, he was drawn back by AI coding agents, and in November 2025 released Clawdbot, a personal agent reached through messaging apps and built on Mario Zechner's Pi; renamed Moltbot and then OpenClaw, it became GitHub's most-starred software project. In February 2026 he joined OpenAI to lead its work on the next generation of personal agents, with OpenClaw moving to an independent open-source foundation. He calls himself "a builder at heart."

Key Contributions

Founded PSPDFKit (2010), the PDF framework that bootstrapped its way into apps used by nearly a billion people, now Nutrient
Released Clawdbot in November 2025, the personal agent that became OpenClaw, GitHub's most-starred software project
Built OpenClaw on Mario Zechner's Pi, putting a minimal coding agent at the heart of the year's most viral personal agent
Joined OpenAI in February 2026 to lead its next generation of personal agents, moving OpenClaw into an independent foundation
Made OpenClaw staying open source his condition in talks with Meta and OpenAI before choosing OpenAI

Videos & Interviews

OpenClaw: The Viral AI Agent that Broke the Internet - Peter Steinberger | Lex Fridman Podcast #491

Three days before he announced he was joining OpenAI, Steinberger retraces OpenClaw from a one-hour prototype that wired WhatsApp to a coding agent ("I was annoyed that it didn't exist, so I just prompted it into existence") through the renames from Clawdbot to Moltbot to OpenClaw, the first at Anthropic's request, with crypto squatters grabbing handles in the gap. He calls the agent-only social network Moltbook "the finest slop" and "art," argues that many of its viral screenshots were human-prompted, and says plainly that prompt injection is unsolved: run agents on private networks, sandboxed, with allow lists and strong models rather than cheap ones. On programming he describes running three to eight agents at once by voice and warns against what he calls "the agentic trap." The last hour turns to money and conditions: he says the project costs him $10,000 to $20,000 a month, that Meta and OpenAI are the labs he finds most interesting, and that OpenClaw staying open source is his one fixed requirement.

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Connections

Mario Zechner

Collaborated

Creator of Pi, Earendil · Creator of libGDX

OpenClaw, Steinberger's personal agent and the most-starred project on GitHub, runs on Zechner's Pi, and its own credits list Steinberger as 'Creator, lobster whisperer' and Zechner as 'Pi creator, security pen tester.' Ronacher, who knows both, names the two temperaments the project joined: Zechner 'very grounded,' Steinberger aiming for 'sci-fi with a touch of madness.'

docs.openclaw.ai · lucumr.pocoo.org

Armin Ronacher

Influenced

Founder, Earendil · Creator of Flask

Ronacher credits 'my friend Peter' with getting him and Zechner 'hooked on this idea, and agents last year': the always-reachable personal agent that became OpenClaw. The influence ran through Pi. Ronacher built his own Telegram bot on it, called it 'the coding agent that I use almost exclusively,' and his company went on to take it in.

lucumr.pocoo.org

Lex Fridman

In conversation

Research Scientist, MIT; Host of the Lex Fridman Podcast

Three days before he announced he was joining OpenAI, Steinberger spent more than three hours with Fridman on #491, retracing OpenClaw from a one-hour WhatsApp prototype ('I was annoyed that it didn't exist, so I just prompted it into existence') through the renames, Moltbook and the prompt injection problem he calls unsolved. It is the fullest first-person account of the year's most viral agent, recorded just before its creator chose a lab.

lexfridman.com · youtube.com