Anthropic introduced Claude Opus 4.5, a new frontier model designed to push the limits of coding, reasoning, and multi-step tasks.
It is now the top performer on real-world software engineering tests, including SWE bench Verified, scoring higher than every other leading model.
Developers can access it through the Claude API, the Claude apps, and all major cloud platforms at new pricing that makes high-level performance more accessible.
Opus 4.5 is significantly stronger across vision, math, reasoning, and multilingual coding.
Testers noted its ability to solve hard bugs, navigate ambiguity, and find creative solutions in multi-constraint scenarios.
It also brings major safety improvements, showing strong resistance to prompt injection and reduced misaligned behavior.
Anthropic paired the model with new platform upgrades, including effort controls, better long-running agents, improved context management, and a more capable Claude Code experience on desktop, Chrome, and Excel.
These updates enable Opus 4.5 to run longer tasks, utilize fewer tokens, and coordinate multiple subagents with greater precision.
For users, this means deeper research, smoother conversations, improved workflow automation, and enhanced performance across coding, spreadsheet, and browser tasks.
Anthropic has increased usage limits so teams can use Opus 4.5 as part of their daily work.
Key Takeaways:
- Claude Opus 4.5 leads frontier AI models in coding, reasoning, and agentic tasks.
- Developers gain new control over model effort, context, tools, and long running tasks.
- Anthropic expanded product features across Claude Code, Chrome, Excel, and desktop apps.
You may also want to check out some of our other recent updates.
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