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GPT-4.x

Model family at OpenAI · 12 models

Every version, including new ones

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Updates

GPT-3.5 Turbo, GPT-4, GPT-4 Turbo

9 models from OpenAI

Retired

Legacy GPT, o-series and GPT Image 1 snapshots shut down on October 23

OpenAI shut down the legacy snapshots it announced on April 22, 2026, on October 23, 2026. They include gpt-3.5-turbo, gpt-4, gpt-4-turbo, gpt-4.1-nano, gpt-image-1, o1, o1-pro, o3-mini, o4-mini and gpt-4o-2024-05-13, plus several fine-tuned versions.

Action needed:
Switch to gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna, or gpt-image-2.5-sunburst or gpt-image-2.5-flare as listed on the page.

Whisper, GPT-4o Transcribe and GPT-4o mini Transcribe

3 models from OpenAI

Retiring

Whisper and GPT-4o transcription models to shut down February 26, 2027

whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize and the /v1/audio/translations endpoint will be removed on February 26, 2027. Replacements are gpt-live-transcribe or gpt-transcribe.

Takes effect Feb 26, 2027 · in 117 days

Action needed:
Migrate to gpt-transcribe or gpt-live-transcribe before February 26, 2027.

GPT-4 Turbo, GPT-4, GPT-3.5 Turbo

9 models from OpenAI

Retiring

Legacy GPT, o-series and gpt-image-1 snapshots to shut down October 23, 2026

OpenAI announced that gpt-3.5-turbo, gpt-4, gpt-4-turbo, gpt-4.1-nano, gpt-4o-2024-05-13, gpt-image-1, o1, o1-pro, o3-mini and o4-mini (plus several fine-tuned bases) shut down on October 23, 2026. Substitutes are GPT-5.6 Sol, Terra or Luna and GPT Image 2.5.

Action needed:
Migrate before October 23, 2026 to the listed GPT-5.6 or GPT Image 2.5 substitute.