Anthropic has released Claude Opus 4.1, a major upgrade to its flagship coding model, promising sharper reasoning, better ...

The company says Opus 4.1 is a “drop-in” advance ahead of “substantially larger improvements” promised in the coming weeks.

Anthropic says Claude Opus 4.1 improves software engineering accuracy to 74.5%. That compares to 62.3% with Claude Sonnet 3.7 ...

Anthropic launched Claude Opus 4.1 today, an upgraded version of its flagship AI model that achieves 74.5% accuracy on ...

Claude Opus 4.1 scores 74.5% on the SWE-bench Verified benchmark, indicating major improvements in real-world programming, bug detection, and agent-like problem solving.

Anthropic has officially released its new flagship AI, Claude Opus 4.1, an incremental upgrade designed to boost coding and ...

Anthropic has released Claude Opus 4.1, a new version of its flagship AI model, with improvements in coding, reasoning, and ...

More improvements will be rolled out in the coming weeks, the company said. The price for Opus 4.1 remains the same as that ...

Anthropic has released Claude Opus 4.1, which is said to deliver better coding and agent performance with improved safety.

Anthropic launches automated AI security tools for Claude Code that scan code for vulnerabilities and suggest fixes, ...

With GPT-5 on the horizon and Meta ramping up AI hiring, Anthropic’s new security-focused features aim to differentiate ...

A new model named "claude-leopard-v2-02-prod" has been spotted in internal configs along with a reference to Claude Opus 4.1 ...