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Five or fewer confirmed AI changes, with original sources, on mornings when something changed.A free source-linked morning brief.

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BenchLM

Confirmed model releases

Anthropic model releases

A newest-first record of confirmed Anthropic launches, linked to the source used for the date and the corresponding BenchLM model record when available.

14 confirmed releases1 providersData through Jul 24, 2026How releases are confirmed

Anthropic release archive

14 confirmed releases · latest Jul 24, 2026

Provider dossier

Confirmed releases

ReleaseProviderConfirmedEvidenceBenchLM
July 2026· 1 release
Claude Opus 5AnthropicExact dayAnthropicBenchmarks
June 2026· 2 releases
Claude Sonnet 5AnthropicExact dayAnthropicBenchmarks
Claude Fable 5 and Claude Mythos 52 model variantsAnthropicExact dayAnthropicBenchmarks
May 2026· 1 release
Claude Opus 4.8AnthropicExact dayAnthropicBenchmarks
April 2026· 2 releases
Claude Opus 4.72 model variantsAnthropicExact dayAnthropic announcementBenchmarks
Claude Mythos PreviewAnthropicExact dayAnthropic Project GlasswingBenchmarks
February 2026· 1 release
Claude 4.62 model variantsAnthropicMonth precisionAnthropic system cardBenchmarks
November 2025· 1 release
Claude Opus 4.5AnthropicMonth precisionAnthropicBenchmarks
October 2025· 1 release
Claude Haiku 4.5AnthropicExact dayAnthropicBenchmarks
September 2025· 1 release
Claude Sonnet 4.5AnthropicMonth precisionAnthropicBenchmarks
August 2025· 1 release
Claude 4.1 OpusAnthropicMonth precisionAnthropicBenchmarks
May 2025· 1 release
Claude 4AnthropicMonth precisionAnthropicBenchmarks
June 2024· 1 release
Claude 3.5 SonnetAnthropicMonth precisionAnthropicBenchmarks
March 2024· 1 release
Claude 3 family2 model variantsAnthropicMonth precisionAnthropicBenchmarks

Anthropic releases by month

All model updates