Opus 5.5 dominant almost everywhere, but GPT 6 Astra still wins at writing
brandon_galang · x · 2026-10-28
The author's two favorite models right now are Opus 5.5 and, close behind, GPT 6 Astra. Opus 5.5 is "undeniably dominant" at nearly everything and infers what you need, but Astra still crushes it at writing.
His take: Astra follows instructions to a fault and grounds itself in reference materials, which is exactly what makes it so good in his writing process.
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