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Claude Sonnet 5

Anthropic · Claude Sonnet line · lightweight

Released June 30, 2026Latest in the line

What changed

Replaced Sonnet 4.6 as the default model on Anthropic's Free and Pro plans, priced at $2 per million input tokens and $10 per million output tokens.

Sources: Anthropic

Where the Claude Sonnet line stands

Claude Sonnet 5 is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.

Claude Sonnet 5

Anthropic · Claude Sonnet line · lightweight
Mid-cycle71 of ~133 days into its usual cycle
Released Jun 30, 2026 · what changed →
Days since last release
Claude Sonnet 5 · Jun 30, 2026
71
days
Usual gap
133
days
Recent gaps
Claude Sonnet 5 · Jun 2026
133
Claude Sonnet 4.6 · Feb 2026
141
Claude Sonnet 4.5 · Sep 2025
130
Claude Sonnet 4 · May 2025
86

Every Claude Sonnet release

Newest first. See the full line with every card →

  1. Jun 30, 2026Claude Sonnet 5 · this page
  2. Feb 17, 2026Claude Sonnet 4.6
  3. Sep 29, 2025Claude Sonnet 4.5
  4. May 22, 2025Claude Sonnet 4
  5. Feb 25, 2025Claude 3.7 Sonnet
  6. Jun 20, 2024Claude 3.5 Sonnet
  7. Mar 4, 2024Claude 3 Sonnet

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