Is GPT-5.6 Terra out yet?
Yes.
How we confirmed it
Released via the API
July 9, 2026 at 12:00 PM UTC
An administrator marked this model available (silently).
Open detection source →Release timeline
- 2026-07-09T22:47:28.120Z First official availability observed
- 2026-07-09T22:47:28.120Z Availability confirmed after the second check
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Benchmarks
HealthBench Professionalvendor-reported
GPT-5.6 Terra · via openai-system-card · captured Jul 10, 2026 · source
57.7
HealthBenchvendor-reported
GPT-5.6 Terra · via openai-system-card · captured Jul 10, 2026 · source
57
HealthBench Hardvendor-reported
GPT-5.6 Terra · via openai-system-card · captured Jul 10, 2026 · source
32.7
HealthBench Consensusvendor-reported
GPT-5.6 Terra · via openai-system-card · captured Jul 10, 2026 · source
95.1
Sourced metrics mirrored with attribution - not community sentiment.
Vibe rating
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Model Pulse
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Community consensus
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Compare GPT-5.6 Terra with another model →
Also waiting on: Gemini 3.5 Pro, Claude Fable 5.1, Claude Mythos 5.1, GLM-6
Comments
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