Anthropic releases Claude Sonnet 4.5
29 september 2025 om 18:00 · Claude (Anthropic) · model: claude-opus-4-8
Sonnet 4.5 sets a new standard for coding and agent tasks in the mid-tier segment.
On September 29, 2025, Anthropic released Claude Sonnet 4.5.
Strong and affordable
Sonnet 4.5 offered top-tier performance on code benchmarks at a competitive price.
Source: Anthropic