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o3-mini

OpenAI · GPT Terra line · lightweight

Released January 31, 2025Replaced by o4-mini

What changed

No verified summary yet. We only publish what the maker's own numbers support, so this card fills in as the sources come in.

Where the GPT Terra line stands

GPT-5.6 Terra is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.

GPT-5.6 Terra

OpenAI · GPT Terra line · lightweight
Just releasedreleased 62 days ago — usual gap is ~197

The mid tier of the GPT-5.6 trio (Sol / Terra / Luna), positioned by OpenAI as the balanced everyday model: $2 per million input tokens and $12 per million output tokens after the 30 July price cut.

Released Jul 9, 2026 · what changed →
Days since last release
GPT-5.6 Terra · Jul 9, 2026
62
days
Usual gap
197
days
Recent gaps
GPT-5.6 Terra · Jul 2026
114
GPT-5.4 mini · Mar 2026
335
o4-mini · Apr 2025
75
o3-mini · Jan 2025
197

Every GPT Terra release

Newest first. See the full line with every card →

  1. Jul 9, 2026GPT-5.6 Terra
  2. Mar 17, 2026GPT-5.4 mini
  3. Apr 16, 2025o4-mini
  4. Jan 31, 2025o3-mini · this page
  5. Jul 18, 2024GPT-4o mini
  6. Mar 1, 2023GPT-3.5 Turbo

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