Vibe Check: GPT-6 Sol writes leaner prose while Opus 5.5 takes too long to state its point
every · x · 2026-09-26
With OpenAI's GPT-6 Sol and Anthropic's Claude Opus 5.5 launching the same day, Every's Dan Shipper ran a quick Vibe Check based on everyday writing work and evals:
- He wants the main idea stated in the opening paragraph; Opus 5.5 often takes too long to get there.
- GPT-6's Sol (and Astra) produce leaner prose that gets to the point, fitting his preferences better.
- He still calls Opus a strong writer — the choice comes down to writing style preferences.
The full comparison is behind Every's paywall.
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