ChatGPT-6 Astra cracks 1941 Enigma-coded message in two days - autonomous AI coded its own simulator to — 2026-09-26

Impact Vector: AI Tools · Sep 26, 2026 · 5m

## Short Segments Claude Opus 5.5 promises cheaper and faster performance, but does it deliver on reasoning tasks? Anthropic's latest model, Claude Opus 5.5, claims to be 40% cheaper and 30% faster than its predecessor, Opus 5. However, when it comes to reasoning tasks, the new model doesn't outperform its predecessor. Despite the cost and speed improvements, Opus 5.5's reasoning capabilities remain on par with Claude Fable 5.1, not surpassing Opus 5. This means developers can expect cost savings and quicker outputs, but not necessarily better reasoning performance. The practical takeaway is…