Anthropic’s Claude Sonnet 5.5 , released Monday , is the first Sonnet model to launch with cyber safeguards and model fallbacks like those the company developed for its most capable models, putting classifier-driven routing in the tier many developers use for production workloads. Anthropic says Sonnet 5.5 doesn’t advance the frontier of its models’ capabilities, but it rates the model’s cybersecurity skills as comparable to Opus 5’s, and on Terminal-Bench 4.0, an agentic coding benchmark, the cheaper model scores 70.6% against 66.4% for Opus 5.5 at its xhigh effort setting. The release shows...

Source: The New Stack