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GPT-5.6 Terra

OpenAI · GPT Terra line · lightweight

Released July 9, 2026Latest in the line

What changed

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.

Sources: OpenAI · Vellum

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

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