Deprecations / Migrate

Migrate off o4-mini

Retired

o4-mini has been retired and shut down on 23 Oct 2026. OpenAI's official replacement is GPT-5.6 Terra. The cheapest comparable model we track is Amazon Nova Lite (Amazon) at $0.105 per 1M tokens blended.

Last verified: 24 Oct 2026 · sourced from official provider documentation

What changes

o4-mini → GPT-5.6 Terra

Moving to GPT-5.6 Terra means 2.3× more expensive ($1.93 → $4.50 /1M blended) and a larger context window (200K → 1.1M).

Speco4-miniGPT-5.6 Terra
StatusRetiredGA
Blended price /1M$1.93$4.50
Input / output /1M$1.10 / $4.40$2 / $12
Context window200K1.1M
Max output100.000128.000
Modalitytext, imagetext, image
Knowledge cutoff1 Jun 202416 Feb 2026

API string was o4-mini-2025-04-16 → switch to gpt-5.6-terra. See GPT-5.6 Terra's full spec sheet →

Cheapest alternatives

Budget-friendly replacements for o4-mini

Generally-available models that match o4-mini's capabilities (and at least half its 200K context), ranked by blended price. Every number is computed from official catalog prices.

ModelBlended /1MInput / outputContext
Amazon Nova Lite
Amazon
$0.105$0.06 / $0.24300K
Llama 4 Scout (17B-16E Instruct)
Meta
$0.15$0.1 / $0.310M
Ministral 3 8B
Mistral
$0.15$0.15 / $0.15256K
FAQ

Migrating off o4-mini

What replaces o4-mini?

OpenAI's recommended migration for o4-mini is GPT-5.6 Terra. The cheapest comparable model in our catalog is Amazon Nova Lite (Amazon) at $0.105/1M blended.

Is o4-mini still available?

No — o4-mini has been retired (shut down 23 Oct 2026) and is no longer available via OpenAI's API.

What is the cheapest alternative to o4-mini?

Amazon Nova Lite (Amazon) is the cheapest generally-available alternative we track that matches o4-mini's capabilities, at $0.06 per 1M input and $0.24 per 1M output tokens ($0.105/1M blended).

Browse the full deprecation watch → or see o4-mini's full spec sheet →