GPT-5.5 Is Out — What the Numbers Actually Say
More posts at radarlog.kr. Yesterday (April 23, 2026) OpenAI released GPT-5.5. Codename "Spud." The surprising part isn't the model itself. GPT-5.4 shipped six weeks ago. OpenAI's Chief Scientist Jakub Pachocki said during the briefing that the last two years have actually been slow. That one line is the real context for this release. Six Weeks, and "Spud" GPT-5.4 came out six weeks ago. The release before that was in December. Before that, November. The era when model release...
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