Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner

As the AI model wars continue, Anthropic has released the newest version of Sonnet, the company’s mid-tier model, which it says will work much faster (and for significantly less) than its predecessor. The lab describes Sonnet 5.5 as an ideal assistant for everyday tasks — including coding and creating office documents. Sonnet 5, 5.5’s predecessor, was announced about three months ago. At the time, the model’s selling point was efficient agentic deployment — the ability to run agents at a lower cost than competitors. The big selling point with 5.5, meanwhile, is speed.

First reported by TechCrunch. This page is a short excerpt; the full text is theirs.