Anthropic

Claude Sonnet 5

Pricing

$2.00 in / $10.00 out per 1M tokens — official pricing

In plain English: Mid-tier of the Claude 5 family; Anthropic's docs place its predecessor Sonnet 4.6 in 'Legacy models'. Launch's introductory $2/$10 pricing was later made the standard price — the scheduled increase to $3/$15 will not occur, per the official pricing docs. Adaptive thinking with an effort control that defaults to high. Max output 128k.

Benchmark scores