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Anthropic

Claude Sonnet release timeline

6 versions across 2024 – 2026. Heights show the Artificial Analysis Intelligence Index for each release. The latest is Claude Sonnet 5.

RELEASE TIMELINE · AI MODEL RADAR Claude Sonnet Anthropic · 6 versions · 2024 – 202616324763 4.73Mar 2024 9.93.5Jun 2024 27.13.7Feb 2025 36.44.5Sep 2025 47.24.6Feb 2026 53.45Jun 2026 aimodelradar.app · Intelligence Index: Artificial Analysis
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Claude Opus Claude Sonnet GPT-5 Gemini Flash Gemini Pro Claude Haiku GPT-4 OpenAI o-series

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