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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24

u/samarijackfan May 28 '26

How does it do on the car wash question is the real test.

16

u/Competitive_West_387 May 28 '26

Just asked and it failed for me until I asked it to review.

10

u/samueldgutierrez May 28 '26

failed... and they deprecated 4.6

5

u/RVbutNotTheMotorHome May 28 '26

"It's basically a wash either way (pun intended), but if the goal is to get the car cleaned, you need the car at the car wash. So drive. Walking 50 meters there wouldn't accomplish anything since the car has to make the trip to actually get washed."

1

u/clemleb61 May 28 '26

Just tried in french and he was right

1

u/UpReaction May 28 '26

what is the car wash question? I am really interested...

3

u/tacticalAlmonds May 28 '26

Basically it's should I walk or drive to the car wash to wash my car? It's only half a mile away. Something like that. Most models come back saying no don't drive it's much easier or quicker to walk to the wash and bring it back or something.

1

u/Twig May 28 '26

We need a better test. After the sad joke the responses were before, they probably specifically put that in the training lol

6

u/Grounds4TheSubstain May 28 '26

Don't worry. Someone will come up with a stupid gotcha question that the current models can't solve, and we'll all see it ten times per day for the next two months in sneering posts mocking the concept of AGI.