Claude Sonnet 5
Anthropic · USA · 2026
Anthropic's most agentic Sonnet — 1M-token context as standard, default on free and Pro plans.
Released June 30, 2026, Claude Sonnet 5 is Anthropic's workhorse frontier model: 63.2% on SWE-Bench Pro, a native one-million-token context window and strong tool-use reliability at Sonnet pricing. It became the default model for Claude's free and Pro users, bringing frontier-grade agentic coding to the mainstream.
▸News
The 50% rise is off: Anthropic makes Claude Sonnet 5's $2/$10 the standard price
8/15/2026 · Anthropic — dokumentacja cenowa
Claude Sonnet 5's introductory price expires on 31 August — and the bill rises 50%
8/6/2026 · Anthropic — dokumentacja modeli
Anthropic ships Claude Sonnet 5 with a native 1M-token context
6/30/2026 · Anthropic
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