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Your Prompts Didn't Change. Opus 4.7 Did.
Description
What's really happening inside Claude Opus 4.7 when Anthropic ships their smartest model ever into a week where OpenAI pushed the biggest Codex update since launch and everyone is racing toward IPO?
The common story is that 4.7 fixes the quitting problem from 4.6, but the reality is that this is a directed optimization with a new tokenizer that maps the same prompts to up to 35% more tokens, and the model went backward on web research while surging on enterprise knowledge work.
In this episode, I share the inside scoop on whether 4.7 is worth the upgrade:
• Why the persistence fix is real but comes with a combative literalism that punishes vague prompts
• How a 465-file adversarial migration test exposed trust failures in both frontier models
• What Claude Design reveals about Anthropic competing on harnesses, not just models
• Where the economics are heading when serious work gets serious tokens and casual interactions do not
Leaders who migrate without benchmarking their specific workflows will discover that Browse Comp dropped from 83 to 79 and terminal execution trails ChatGPT 5.4 by nearly 6 points.
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For playbooks and analysis: https://natesnewsletter.substack.com/p/opus-47-is-smarter-more-literal-and?r=1z4sm5&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true
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