GPT-Image-2.5 arrives in ChatGPT, but the infamous noise-artifact test still yields mixed results
ElonBaldMusk · x · 2026-09-09
markk reports GPT-Image-2.5 has shipped in ChatGPT with many improvements, and immediately ran his infamous "noise artifact" test (prompt: a detailed photo of a clearing in the woods with green foliage). Results were mixed: ElonBaldMusk complained the patter artifact is everywhere and "even worse than before," while markk judged it not worse but not much better either — suggesting texture artifacts remain a weak spot in the update.
Related event: ChatGPT quietly upgrades to GPT-Image-2.5 with new Sketch feature(20 posts)→
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