#425 Neil: Claude Opus 4.7 After 5 Brutal Tests That Broke 4.6 Hard
Five brutal tests. Four models. One verdict. See where Claude Opus 4.7 crushes 4.6, where GPT 5.4 still beats it on speed, and where Gemini 3.1 Pro wins on long multimodal work. Plus the token cost trap and the settings trick that saves your bill this month ⚡
We'll talk about:
- What actually changed between Claude Opus 4.6 and 4.7, including xhigh effort mode, the /ultrareview command, and the new tokenizer
- Whether 4.7 is a real upgrade or just Anthropic resetting 4.6 defaults back to where they used to be
- Test 1, a NVIDIA stock chart analysis that exposed 4.6's biggest weakness on instruction following
- Test 2, a SaaS financial model where 4.7 caught its own math errors mid-build
- Test 3, a hard coding refactor on a real Express.js project, with all four source files included
- Test 4, a six-document legal due diligence review with embedded contradictions and risk statements
- Test 5, a high-resolution vision task on a crowded retail media dashboard and handwritten whiteboard
- Head-to-head matrix comparing Claude Opus 4.7 against Gemini 3.1 Pro and GPT 5.4 across every test
- The token cost problem, where xhigh effort can make your bill climb 1.35x without warning
- A three-test rule for deciding if 4.7 is worth it on your own workflow this week
Keywords: Claude Opus 4.7, Claude Opus 4.6, Claude Opus 4.7 Vs 4.6, Claude Opus 4.7 Vs Gemini 3.1 Pro, Claude Code, AI Tools.
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