Anthropic's mid-tier model Claude Sonnet 5.5 tops its own flagship on Terminal-Bench 4.0 and costs half as much per token.

I put ChatGPT-6 and Claude Opus 5.5 through five real-world tests covering writing, reasoning, planning and decision-making. One model won 4 out of 5.

Anthropic’s newest Claude model aims to make frontier AI cheaper, faster, and safer, while giving subscribers more breathing room before those frustrating usage limits kick in. Less than two months ...