With Claude's Fable 5 model back in Claude Code as of July 1 after an 18-day export-control shutdown, developers are resuming the long-horizon autonomous sessions the tool was designed for — and ...
Anthropic PBC today debuted Claude Sonnet 5, a midrange large language model that outperforms its predecessor in several ...
Claude Sonnet 5 is the most agentic Sonnet model yet, rivaling Opus 4.8 in performance at lower prices, Anthropic said.