Predicting a new GPT-4 / Sonnet 3.5 / Opus 4.5 moment from upcoming GPT and Claude releases

kieranklaassen · x · 2026-09-25

Kieran Klaassen predicts that the upcoming new GPT and Claude releases in the coming weeks will produce an industry-defining leap similar to the GPT-4, Claude Sonnet 3.5, and Opus 4.5 moments. A pre-release expectation with no concrete details.

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