Anthropic launches Claude

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Launched Claude to the public

Why it matters

Released the same day as GPT-4, symbolizing that competition was moving beyond prompting tricks

Source — Primary sources first; secondary reports are labelled “Press”

Officialanthropic.comhttps://www.anthropic.com/news/introducing-claude

Added in Week 35, 2026 · See that week

On the map — ① Prompt Engineering line

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In the model family tree — Claude family · 20 versions

  1. Earlier versionThe first version in this branch
  2. This recordClaude
  3. Later versionClaude 2
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Same week

PyTorch 2.0 released (torch.compile in beta)OfficialOpenAI releases GPT-4OfficialAlpaca 7BOfficial

Nearby on the same axis

OpenAI releases GPT-4OfficialAnthropic's Prompt Engineer and Librarian job reported at $175,000–$335,000PressShinn et al. present ReflexionPaperSelf-Refine publishedPaper