MajorAnthropicNew Launch
Claude Sonnet 5 replaces Sonnet 4.6 with new pricing and features
Anthropic launched Claude Sonnet 5, replacing Sonnet 4.6. Sonnet 5 has a higher knowledge cutoff (Jan 2026 vs Aug 2025), loses extended thinking support, and has introductory pricing ($2/$10 per MTok until Aug 2026). Opus 4.8 effort defaults to 'high' on Claude Code and claude.ai. Haiku 4.5 Bedrock
Jun 30, 2026 (UTC)Views:4
Impact Assessment
Cost3
Reliability0
Migration3
Quality3
Compliance0
Sources
docs
Anthropic Models Docs
Models overview Model IDs and versioning Choosing a model Introducing Claude Fable 5 and Claude Mythos 5 What's new in Claude Opus 4.8 What's new in Claude Sonnet...
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