Claude Sonnet 4.6 is more consistent with coding and is better at following coding instructions, Anthropic said.

According to Anthropic, "Claude Sonnet 4.6 is our most capable Sonnet model yet." The company says Sonnet 4.6 has a 1 million ...

Anthropic rolls out Claude Sonnet 4.6 as its new default model, bringing stronger reasoning and coding power to free and paid users alike.

Anthropic is positioning Sonnet 4.6 as a practical daily driver. In many cases, it's even faster than Opus 4.6.

Claude Sonnet 4.6, released Tuesday, can apparently fill out multistep web forms and use several browser tabs.