Claude Code with Sonnet 4.5 is actually incredible (with 1 exception)

Alex Finn · Sep 18, 2026 · 24m

Here is your full Claude Code with Sonnet 4.5 test and review. Whether you are new or pro, you'll have something to learn here.

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Claude Sonnet 4.5 Announcement:

https://www.anthropic.com/news/claude-sonnet-4-5

Prompt:

I want to build an AI prompt library app. Users can enter in an AI prompt and save it to their library. They can then view their library of prompts and edit them…