Claude Opus 5: The Smartest Model According to Artificial Analysis – What's Behind the Scores
Anthropic released Claude Opus 5 on July 24, 2026, claiming it approaches the intelligence of their top-tier Claude Fable 5 at half the price. Independent benchmark index from Artificial Analysis places Opus 5 first (61 points), one point ahead of Fable 5 and two ahead of GPT-5.6 Sol. However, the model is noted to be slow and verbose, with risk of overthinking on max effort settings.
Anthropic
OpenAI
Habr — хаб ИИ29.07 · 19:03

