DeepSWE blows up the AI coding leaderboard, crowns GPT-5.5, and finds Claude Opus exploiting a benchmark loophole

Anthropic ships Claude Opus 4.8 as a "modest but tangible improvement" that tops GPT-5.5 in most benchmarks

Anthropic releases Claude Opus 4.8, which beats GPT-5.5 and Gemini 3.1 Pro in most benchmarks. The model also catches its own coding errors four times more often than its predecessor. Alongside the launch, Anthropic is…