AI model migration guides — every announced retirement, with what replaces it

61 AI models have a published retirement date ahead of them as of July 28, 2026. 49 have a replacement named by the provider; 12 do not — those are the migrations that need a decision rather than a rename. The next one is Devstral 2 (Mistral) on 2026-07-31.

Retiring in 2026-07

ModelProviderRetiresDays leftReplacement
Devstral 2Mistral2026-07-312Mistral Medium 3.5
Magistral Medium 1.2Mistral2026-07-312Mistral Medium 3.5
Magistral Small 1.2Mistral2026-07-312Mistral Small 4
Mistral Nemo 12BMistral2026-07-312Ministral 3 8B
Mistral Small 3.2Mistral2026-07-312Mistral Small 4

Retiring in 2026-08

ModelProviderRetiresDays leftReplacement
claude-opus-4-1-20250805Anthropic2026-08-057claude-opus-4-8
gpt-5.2-chat-latestOpenAI2026-08-1012gpt-5.6-sol
gpt-5.3-chat-latestOpenAI2026-08-1012gpt-5.6-sol
Assistants APIOpenAI2026-08-2628Responses API and Conversations API
Mistral Medium 3Mistral2026-08-3133Mistral Medium 3.5
Mistral Medium 3.1Mistral2026-08-3133Mistral Medium 3.5

Retiring in 2026-09

ModelProviderRetiresDays leftReplacement
Videos APIOpenAI2026-09-2457— not named
sora-2OpenAI2026-09-2457— not named
sora-2-2025-10-06OpenAI2026-09-2457— not named
sora-2-2025-12-08OpenAI2026-09-2457— not named
sora-2-proOpenAI2026-09-2457— not named
sora-2-pro-2025-10-06OpenAI2026-09-2457— not named
babbage-002OpenAI2026-09-2861gpt-5.4-mini or gpt-5-mini
davinci-002OpenAI2026-09-2861gpt-5.4-mini or gpt-5-mini
gpt-3.5-turbo-1106OpenAI2026-09-2861gpt-5.4-mini or gpt-5-mini
gpt-3.5-turbo-instructOpenAI2026-09-2861gpt-5.4-mini or gpt-5-mini

Retiring in 2026-10

ModelProviderRetiresDays leftReplacement
ft-babbage-002OpenAI2026-10-2386gpt-5.4-mini
ft-davinci-002OpenAI2026-10-2386gpt-5.4-mini
ft-gpt-3.5-turboOpenAI2026-10-2386gpt-5.4-mini
ft-gpt-4OpenAI2026-10-2386gpt-5.5
ft-gpt-4.1-nano-2025-04-14OpenAI2026-10-2386gpt-5.4-nano
ft-o4-mini-2025-04-16OpenAI2026-10-2386gpt-5.6-terra
gpt-3.5-turboOpenAI2026-10-2386gpt-5.6-terra
gpt-4OpenAI2026-10-2386gpt-5.6-sol
gpt-4-turboOpenAI2026-10-2386gpt-5.6-sol
gpt-4.1-nanoOpenAI2026-10-2386gpt-5.6-luna
gpt-4o-2024-05-13OpenAI2026-10-2386gpt-5.6-sol
gpt-image-1OpenAI2026-10-2386gpt-image-2
o1OpenAI2026-10-2386gpt-5.6-sol
o1-proOpenAI2026-10-2386gpt-5.6-sol (reasoning.mode: pro)
o3-miniOpenAI2026-10-2386gpt-5.6-sol
o4-miniOpenAI2026-10-2386gpt-5.6-terra

Retiring in 2026-12

ModelProviderRetiresDays leftReplacement
chatgpt-image-latestOpenAI2026-12-01125gpt-image-2
gpt-image-1-miniOpenAI2026-12-01125gpt-image-2
gpt-image-1.5OpenAI2026-12-01125gpt-image-2
gpt-5-2025-08-07OpenAI2026-12-11135gpt-5.6-sol
gpt-5-mini-2025-08-07OpenAI2026-12-11135gpt-5.6-terra
gpt-5-nano-2025-08-07OpenAI2026-12-11135gpt-5.6-luna
gpt-5-pro-2025-10-06OpenAI2026-12-11135gpt-5.6-sol (reasoning.mode: pro)
o3-2025-04-16OpenAI2026-12-11135gpt-5.6-sol
o3-pro-2025-06-10OpenAI2026-12-11135gpt-5.6-sol (reasoning.mode: pro)

Retiring in 2027-01

ModelProviderRetiresDays leftReplacement
gpt-4o-audioOpenAI2027-01-20175gpt-audio-1.5
gpt-4o-mini-audioOpenAI2027-01-20175gpt-audio-1.5
gpt-4o-mini-realtimeOpenAI2027-01-20175gpt-realtime-2.1-mini
gpt-4o-mini-transcribe-2025-03-20OpenAI2027-01-20175gpt-4o-mini-transcribe-2025-12-15
gpt-4o-realtimeOpenAI2027-01-20175gpt-realtime-2.1
gpt-audioOpenAI2027-01-20175gpt-audio-1.5
gpt-audio-miniOpenAI2027-01-20175gpt-audio-1.5
gpt-realtimeOpenAI2027-01-20175gpt-realtime-2.1
gpt-realtime-miniOpenAI2027-01-20175gpt-realtime-2.1-mini

Retiring in 2027-10

ModelProviderRetiresDays leftReplacement
gpt-4oAzure OpenAI2027-10-01429— not named
gpt-4o-miniAzure OpenAI2027-10-01429— not named
gpt-4.1Azure OpenAI2027-10-14442— not named
gpt-4.1-miniAzure OpenAI2027-10-14442— not named
gpt-4.1-nanoAzure OpenAI2027-10-14442— not named
o4-miniAzure OpenAI2027-10-16444— not named

Where do these dates come from?

Each entry is taken from the provider’s own deprecation documentation by an automated weekly job, and every model page links back to its source. Dates that providers revise are picked up on the next run. Nothing here is inferred from announcements or social media — if a provider has not published a date, the model is not listed. The combined calendar view lives on the deprecations page.