AI Tools History Archive

Developer-facing lifecycle events

AI API deprecations and model retirements

Browse dated API deprecations, API removals, model deprecations, and model retirements with affected names, shutdown dates, current status, and replacement guidance where available.

2026-06-01

Gemini 2.0 Flash model shutdown date reached

Google’s Gemini API deprecations page lists June 1, 2026 shutdown dates for Gemini 2.0 Flash and related Gemini 2.0 Flash Lite models.

Google Gemini 2.0 Flash models
model retiredmodelmodel_discontinuedConfidence: high
2026-01-14

text-embedding-004 shutdown date reached

Google’s Gemini API deprecations page lists January 14, 2026 as the shutdown date for text-embedding-004.

Google text-embedding-004
model retiredmodelmodel_discontinuedConfidence: high
2025-11-10

imagen-3.0-generate-002 shutdown date reached

Google’s Gemini API deprecations page lists November 10, 2025 as the shutdown date for imagen-3.0-generate-002.

Google Imagen 3.0 generate 002
model retiredmodelmodel_discontinuedConfidence: high
2025-07-21

Claude 2 and Sonnet 3 models retired

Anthropic’s deprecation history states that Claude 2, Claude 2.1, and Claude Sonnet 3 models were retired on July 21, 2025.

Anthropic Claude 2 and Sonnet 3 models
model retiredmodelmodel_discontinuedConfidence: high
2025-03-11

Assistants API sunset path announced

OpenAI documented a sunset path for the Assistants API after feature parity with the Responses API, with a target sunset in the first half of 2026.

OpenAI Assistants API
api deprecatedapideprecatedConfidence: high
2024-11-06

Claude 1 and Instant models retired

Anthropic’s deprecation history states that Claude 1 and Instant models were retired on November 6, 2024.

Anthropic Claude 1 and Instant models
model retiredmodelmodel_discontinuedConfidence: high
2024-01-04

Legacy GPT-3 models retired

OpenAI’s deprecation documentation lists older GPT-3 base and completion models as retired with replacement guidance.

OpenAI GPT-3 base models
model retiredmodelmodel_discontinuedConfidence: high