OpenAI Ships Full GPT-5.5-Cyber and Launches 'Patch the Planet' With Trail of Bits — A Direct Counter to Anthropic's Glasswing

OpenAI·high signal

On June 22 OpenAI moved GPT-5.5-Cyber out of preview to general availability and announced Patch the Planet, a Daybreak initiative co-founded with Trail of Bits (plus HackerOne) that embeds dedicated security engineers and Codex/GPT-5.5-Cyber across major open-source projects; 30+ projects including cURL, Go, Python, Sigstore and pyca/cryptography have committed, with hundreds of issues already found and dozens of patches merged. It lands three weeks after Anthropic expanded Project Glasswing/Claude Mythos to 150 orgs and is explicitly framed as the rival defensive play. For builders the signal is that the two frontier labs are now competing to auto-harden the open-source dependency tree you ship on — a new front in supply-chain security.