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Dan Shipper is the CEO and cofounder of Every. Every week he explores the frontiers of AI in his column, Chain of Thought, and on his podcast, ‘AI & I.’
Two models, one clear tradeoff.
Sep 22, 2026 · 1 min read
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Two big models dropped today: OpenAI’s GPT-6 Sol and Anthropic’s Claude Opus 5.5.
We had a separate Vibe Check prepared for Sol, but with both arriving today, you’re probably wondering: Should I use Sol 6 or Opus 5.5? So here’s a short Vibe Check to help you answer exactly that question, based on our experience and evals testing both models extensively on the work we do every day.
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