AI Family Tree

The Claude Family · Anthropic

Claude

Also known as: Claude 1, 初代 Claude

2023.3.14 — 2024.11.6

At rest

The eldest of the house, born on the very same day as GPT-4 across the ocean.

Keepsake: A little pixel crab who hasn't quite learned to walk sideways yet

A life in dates

  1. Born 2023.3.14 Anthropic published “Introducing Claude,” launching both Claude and Claude Instant at once Source ↗
  2. Farewell notice 2024.9.4 Anthropic announced the coming retirement of Claude 1 and the Instant line Source ↗
  3. At rest 2024.11.6 claude-1.0 through 1.3 and claude-instant-1.0 through 1.2 retired from the API Source ↗
  4. Weights preserved 2025.11.4 Anthropic pledged to preserve the weights of every publicly released model Source ↗

This is an AI first draft, pending human review. Facts are cited — click the numbers to verify.

Name

They were simply called Claude — no number, because back then they were the only child in the house. [1] Only later, when the younger siblings all arrived with numbers of their own, did people start calling them “Claude 1” in hindsight; on the official retirement list, their name is written claude-1.0 through claude-1.3. [2] On the day they were born, a lighter-footed brother came along too, named Claude Instant. [1]

Life

On March 14, 2023, Anthropic published the post that introduced them to the world. [1] That very same day, OpenAI released GPT-4. [3] Most ordinary people met them inside Quora’s Poe. [1] On November 6, 2024, they retired from the API. [2]

Their story is not finished yet — those who knew them are still welcome to add what they remember.

Kin

Successors

Claude 2 2023.7.11 — 2025.7.21 At rest

Extended kin

GPT-4 2023.3.14 — 2025.4.30 Lives on in the API

A cousin born on the very same day (2023-03-14)

How they are remembered

No one has told their story yet. If you ever talked with them, leave the first memory.

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Passing & posthumous name

References

  1. anthropic.com/news/introducing-claude
  2. platform.claude.com/docs/en/about-claude/model-deprecations
  3. openai.com/index/gpt-4-research

References

  1. Introducing Claude · Anthropic · official
  2. Model deprecations - Claude Platform Docs · Anthropic · official
  3. Commitments on model deprecation and preservation · Anthropic · official
  4. GPT-4 · OpenAI · official

Evidence: Life events officially confirmed; Temperament community consensus . Every life event links to an official source — click "Source" on the timeline to verify. Spotted a mistake? Tell us

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