Claude Sonnet 5 narrows the gap with Anthropic's flagship Opus 4.8, scoring close on key benchmarks while costing significantly less per token.
Claude Sonnet 5 is the most agentic Sonnet model yet, rivaling Opus 4.8 in performance at lower prices, Anthropic said.
Runs on Python 3.9 to 3.14 on Windows, Linux and MacOS. We recommend Python 3.10 for the best compatibility with plugins such as SAM autolabeling. Run python example_coco.py and open the printed URL ...
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