Top Architect
Apr 23, 2026 · Industry Insights
Inside the OpenAI Codex Leak: GPT‑5.5, Glacier, Heisenberg and What They Reveal
A recent OpenAI Codex leak exposed internal models—including GPT‑5.5, Glacier, Heisenberg and Arcanine—triggering analysis of the accidental staging‑to‑production push, the shift toward agentic AI, speculative new architectures, and the community debate over whether the incident was a genuine engineering mishap or a calculated marketing move.
AIGPT-5.5Glacier
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