models•confirmed Confidence•Importance 5/5
GPT-5.6 reaches general availability as a three-model family
OpenAI released Sol, Terra, and Luna with different capability, latency, and cost positions for production selection.
Occurred: 2026-07-09Published: 2026-07-09Verified: 2026-07-17current
Why it matters
Model selection is becoming a workload-routing decision across capability tiers, not a single default-model choice.