Anthropic reveals new Opus 4.5 model, brings Claude Code to the Mac app

Anthropic has announced its latest AI model with Claude Opus 4.5. The company has also expanded Claude Code availability to the Claude desktop app for the first time.

Claude Opus 4.5

Anthropic describes its new Opus 4.5 model as “intelligent, efficient, and the best model in the world for coding, agents, and computer use.” It follows Opus 4.1, which Anthropic released in August. The company shares internal first impressions of new model:

As our Anthropic colleagues tested the model before release, we heard remarkably consistent feedback. Testers noted that Claude Opus 4.5 handles ambiguity and reasons about tradeoffs without hand-holding. They told us that, when pointed at a complex, multi-system bug, Opus 4.5 figures out the fix. They said that tasks that were near-impossible for Sonnet 4.5 just a few weeks ago are now within reach. Overall, our testers told us that Opus 4.5 just “gets it.”

Claude Opus 4.5 is also said to be more efficient, requiring fewer tokens for similar tasks, making it more affordable.

Claude Code

Additionally, Claude Code has been added to Anthropic’s desktop apps including the Mac version. Claude Code was previously limited to mobile apps and the web. It allows software engineers to code, research, and update work with multiple local and remote sessions running at the same time.

Anthropic also says that Claude app users will no longer hit a wall with long conversations as frequently. With today’s updates, Claude can automatically summarize earlier parts of a conversation to allow more room for continuing the chat without hitting limits.

Learn more about Claude Opus 4.5 here.

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