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

Anthropic has launched the Claude Opus 4.8 model, which surpasses GPT-5.5 and Gemini 3.1 Pro in most benchmarks. The new model has a fourfold increase in its ability to detect its own programming errors, enhancing performance accuracy. Additionally, Anthropic introduces a dynamic workflow capable of creating hundreds of parallel sub-agents to manage tasks such as codebase migration. This development represents a tangible improvement, allowing the new model to handle tasks more efficiently.