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Timelines

AI model release timelines

Every major model line and vendor as a visual timeline — each version, its release date and how performance has improved over time. Pick a vendor like Anthropic or OpenAI, or a model line like Claude Opus. Built to share.

RELEASE TIMELINE Anthropic Anthropic · 8 versions · 2025 – 2026 33.7Opus 4.1Aug 2025 29.6Haiku 4.5Oct 2025 40.8Opus 4.5Nov 2025 43.7Opus 4.6Feb 2026 47.2Sonnet 4.6Feb 2026 53.5Opus 4.7Apr 2026 55.7Opus 4.8May 2026 59.9Fable 5Jun 2026 INTELLIGENCE INDEX ↑ AI Model Radar aimodelradar.app · Performance: Artificial Analysis

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