GPT-5.6 Sol Is Here. Is Your Claude Code Setup Obsolete?
Compare GPT-5.6 Sol vs Claude Fable 5 before a Claude Code to Codex migration. See what imports cleanly and how to test Sol without losing your setup.
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Senior AI & Product Writer
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Dan is a New York-based entrepreneur and writer, always shaped by the collision of three identities he holds simultaneously: builder, operator, and essayist. That combination shows up in his writing as genuine attempts to think through hard things, not to perform expertise.
Compare GPT-5.6 Sol vs Claude Fable 5 before a Claude Code to Codex migration. See what imports cleanly and how to test Sol without losing your setup.
Sonnet 5 undercuts Opus 4.8 on price, but the tokenizer changed and high-effort runs flip the math. Here's which model to use and when Opus still wins.