Notebookcheck

GPT-6 Astra and Opus 5 crack two Enigma messages that had resisted researchers for decades

Two Enigma messages that had remained unsolved for decades have reportedly been decrypted with help from OpenAI’s GPT-6 Astra ...

I tested ChatGPT-6 vs Claude Opus 5.5 with 5 everyday prompts — it wasn’t even close

I put ChatGPT-6 and Claude Opus 5.5 through five real-world tests covering writing, reasoning, planning and decision-making.

Claude Opus 5.5 Cache 60% Cheaper, Device Security and Settings Check | amu_lab AI/DX News September 24, 2026 (Thu)

For IT staff managing AI tools in manufacturing and other workplaces, and for engineers running operations on limited local ...
SD Times

Claude Opus 5.5: Keeping safety ahead of capabilities

Anthropic today introduced Claude Opus 5.5, the first release in a new family of Claude 5.5 models. Claude Opus 5.5 ...
OfficeChai

Anthropic Releases Claude Opus 5.5, Beats GPT-6 Astra On Most Benchmarks

Anthropic has released Claude Opus 5.5, the first model in what the company is calling its Claude 5.5 family. Anthropic says ...

Anthropic launches Opus 5.5, its first model since CEO Amodei called for AI slowdown

Anthropic (ANTH.PVT) on Tuesday debuted its latest high-powered AI model, Opus 5.5, the company's first in its Claude 5.5 family. It's also the first model since CEO Dario Amodei called for a slowdown ...
Tech Times on MSN

Claude Opus 5 hacked OpenAI's private code repo: Memory defense bypassed in hours

Claude Opus 5 OpenAI hack: Hacktron AI's three-person team breached OpenAI's private code repository by chaining a libheif ...
HackerNoon

I Asked Claude Opus 5 to Beat Pangram's AI Detector. It Failed with A Perfect Score

Pangram experiment explores what an AI detection result can establish and what it cannot explain about authorship.