Claude Opus 5 arrives with near Fable performance at half the price

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ZDNET's key takeaways

  • Opus 5 targets coding, knowledge work, and agent workflows.
  • Anthropic says it uses fewer tokens for similar quality.
  • Developers get faster output and smarter tool controls.

To the surprise of no one, Anthropic has released Claude Opus 5. After releasing the controversial Mythos 5 and Fable 5 last month and Sonnet 5 on July 1, it was inevitable that Opus would be bumped from 4.8 to 5. That's happening today.

I've been impressed with Opus 4.8. I've been using it for a number of large coding projects, and it's handled them quite well. But based on limited user reports, it's likely that Claude Code will get another big boost.

Also: I use Anthropic's Claude AI tools for very different jobs: How to pick between models, Code, and Cowork

I'm not the only one impressed with...

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