# Please keep this list sorted in the following order:
# 1. By retirement_date, from newest to oldest
# 2. Within the same date, alphabetically by name
#
# This file lists AI models that have been retired
# It is used to generate the "Model retirement history" table at
# /content/copilot/reference/ai-models/supported-models#model-retirement-history.
#
# Column keys
# - name: The model name being deprecated.
# - retirement_date: The official retirement date for the model (YYYY-MM-DD).
# - suggested_alternative: The model recommended for migration.

- name: 'GPT-4.1'
  retirement_date: '2026-06-01'
  suggested_alternative: 'GPT-5.5'

- name: 'Grok Code Fast 1'
  retirement_date: '2026-05-15'
  suggested_alternative: 'GPT-5 mini'

- name: 'Claude Sonnet 4'
  retirement_date: '2026-05-01'
  suggested_alternative: 'Claude Sonnet 4.6'

- name: 'GPT-5.1'
  retirement_date: '2026-04-15'
  suggested_alternative: 'GPT-5.3-Codex'

- name: 'GPT-5.1-Codex'
  retirement_date: '2026-04-01'
  suggested_alternative: 'GPT-5.3-Codex'

- name: 'GPT-5.1-Codex-Max'
  retirement_date: '2026-04-01'
  suggested_alternative: 'GPT-5.3-Codex'

- name: 'GPT-5.1-Codex-Mini'
  retirement_date: '2026-04-01'
  suggested_alternative: 'GPT-5.3-Codex'

- name: 'Gemini 3 Pro'
  retirement_date: '2026-03-26'
  suggested_alternative: 'Gemini 3.1 Pro'

- name: 'Claude Opus 4.1'
  retirement_date: '2026-02-17'
  suggested_alternative: 'Claude Opus 4.6'

- name: 'GPT-5'
  retirement_date: '2026-02-17'
  suggested_alternative: 'GPT-5.2'

- name: 'GPT-5-Codex'
  retirement_date: '2026-02-17'
  suggested_alternative: 'GPT-5.2-Codex'

- name: 'Claude Sonnet 3.5'
  retirement_date: '2025-11-06'
  suggested_alternative: 'Claude Haiku 4.5'

- name: 'Claude Opus 4'
  retirement_date: '2025-10-23'
  suggested_alternative: 'Claude Opus 4.6'

- name: 'Claude Sonnet 3.7'
  retirement_date: '2025-10-23'
  suggested_alternative: 'Claude Sonnet 4.6'

- name: 'Claude Sonnet 3.7 Thinking'
  retirement_date: '2025-10-23'
  suggested_alternative: 'Claude Sonnet 4.6'

- name: 'Gemini 2.0 Flash'
  retirement_date: '2025-10-23'
  suggested_alternative: 'Gemini 2.5 Pro'

- name: 'o1-mini'
  retirement_date: '2025-10-23'
  suggested_alternative: 'GPT-5 mini'

- name: 'o3'
  retirement_date: '2025-10-23'
  suggested_alternative: 'GPT-5.2'

- name: 'o3-mini'
  retirement_date: '2025-10-23'
  suggested_alternative: 'GPT-5 mini'

- name: 'o4-mini'
  retirement_date: '2025-10-23'
  suggested_alternative: 'GPT-5 mini'