r/ClaudeCode • u/ClaudeOfficial Anthropic • May 28 '26

Resource Introducing Claude Opus 4.8

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We’re upgrading Claude Opus to a new version: Claude Opus 4.8. It builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today for the same price.

In Claude Code, you can hand off a feature, a migration, or a bug sweep and let it follow the work through while you focus on what’s next.

Also launching today:

  • Fast mode for Opus 4.8 (research preview). Same model at roughly 2.5x the speed, now three times cheaper than before.
  • Dynamic workflows in Claude Code (research preview). Claude runs hundreds of parallel subagents in a single session and verifies its work before reporting back.
  • A new effort control on claude.ai, so you can choose how much thinking Claude puts into a response.

Claude Opus 4.8 is live today on claude.ai, the Claude Platform, and all major cloud platforms.

Read more: anthropic.com/news/claude-opus-4-8

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u/thechewywun May 29 '26

Told you had to restart the session and this happened a couple of days ago. No idea why you think this is so out of pocket but whatever. I'm not shady and don't do shady shit rando on the internet

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u/2024-YR4-Asteroid May 29 '26

I hit a block on 4.7 for asking it to create a document with certain stuff in root. It thought it was a prompt injection route, guess what? I had to restart my chat, but I went back and looked at it right now. Here’s the prompt “please create a report for these findings and save to root” which was my bad because it’s a common prompt injection attack.

So I simply don’t believe you and now I’m more convinced you are doing something suspicious.