New Delhi, Sept. 30 -- Anthropic on Monday announcedClaude Sonnet 4.5, an update the company describes as focused on coding and agent-based workflows. The company said the model demonstrates improvements in reasoning, math and management of long-duration tasks. On benchmark measures cited by Anthropic, Sonnet 4.5 scored highest on the SWE-bench Verified evaluation (an evaluation of real-world software coding skills) and scored 61.4% on the OSWorld benchmark for operating-system dexterity, up from 42.2% for an earlier Sonnet 4 release.

Anthropic said the model is available via the Claude API at the same pricing as Sonnet 4: $3 per million tokens for standard use and $15 per million for extended use. The company also said Claude apps now a...