Guide: Building with Claude Sonnet 5.5
Melvin Vivas · X post · 2026-09-29 · Open on X
Topics: LLM Fundamentals, AI Dev Tools & Productivity · Level: intermediate
Summary
The creator shares the official claude.dev blog guide on building with Claude Sonnet 5.5. Read it to learn how to use the new model in your applications.
Key points
- The official guide is at claude.dev/blog/building-with-claude-sonnet-5-5/.
- The shorter caption link (claude.dev/blog/building-) is broken. Use the full URL.
- Read it to see how to use Claude Sonnet 5.5 when building apps.
Resources mentioned
- Building with Claude Sonnet 5.5 (claude.dev Blog) · article · claude.dev · free
Official claude.dev blog guide on building applications with Claude Sonnet 5.5. - Claude Sonnet 5.5 · tool · anthropic.com · paid
Anthropic's newly released mid-tier Claude model, reported to be strong at agentic coding.
Also in: Generating a Repo Promo Video with a Claude Skill on Sonnet 5.5 vs Opus 5.5 (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), GPT-6.1 and Sonnet 5.5 Released the Same Week (Melvin Vivas on X · notes), Use Sonnet 5.5 instead of Opus 5.5 for faster video-clipping tasks (Melvin Vivas on X · notes) and 2 more
Try this
- Read the Building with Claude Sonnet 5.5 guide.
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- Use Sonnet 5.5 instead of Opus 5.5 for faster video-clipping tasks
- Running LLMs Locally Without an Expensive Rig
- The Jev model is now on OpenRouter
- How LLMs Work: A Motion-Graphics Explainer Made in One Shot with Claude Opus 5.5