Author: Anthropic

In Claude Code, we’ve added checkpoints—one of our most requested features—that save your progress and allow you to roll back instantly to a previous state.

Dunno. recently I’ve been using OpenAI codex. I find I can work with much longer on the 20/month plan than I can sonnet. and I’m not nearly smart enough to detect differences in the two tools approach to solutions at this time.

_{Quote Citation: Anthropic, “Introducing Claude Sonnet 4.5 \ Anthropic”, Sep 29, 2025, https://www.anthropic.com/news/claude-sonnet-4-5}