Pawel Huryn · 6 min read · Gen AI Tools
The Ultimate Guide to Claude Opus 4.7
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The guide analyzes Claude Opus 4.7, noting it follows instructions more literally and is not a uniform upgrade—offering gains in coding, creative writing, and structured tasks while potentially reducing performance on vague prompts, multi-turns, and long-context retrieval. It introduces the ten migration moves to adapt 4.6 prompts to 4.7, centers on intent engineering (durable strategic context in CLAUDE.md plus per-turn task intent), and discusses how to choose between 4.6 and 4.7 for different workflows plus the upcoming Claude Code Certification.
Key Takeaways
- 4.7 delivers wins in coding, writing, and structured tasks but can struggle with vague prompts, multi-turns, and long contexts; migrate 4.6 prompts using the ten moves.
- Intent engineering is the core unlock: maintain a durable strategic context in CLAUDE.md and specify per-turn task intent to guide 4.7's literal-following behavior.
- Migration moves show how to front-load intent in CLAUDE.md and help decide between 4.6 and 4.7 for your workflow.
- Public sentiment is mixed; benchmarks reveal trade-offs rather than clear regressions, so hands-on testing matters.
- Hands-On Claude Code Certification launching May 9 signals a broader push to build real apps with Claude.
Excerpt
4.6 guessed. 4.7 stopped guessing. Your old prompts still work, mostly. The ones that break need one of the ten moves below. Anthropic shipped Claude Opus 4.7 on April 16. The official migration guide puts it plainly: 4.7 “takes the instructions literally” and “will not silently generalize.” It's not a uniform upgrade. Wins on coding, creative writing, and structured work. Losses on instruction following in vague prompts, multi-turn, and long-context retrieval. The benchmarks show a trade, not a regression. I sort real regressions from preference artifacts and cost mechanics in § 6. Boris Cherny, Claude Code lead at Anthropic, posted…