gpt-5.5
Free text model
Models
Models available through InferGate
Your authenticated model list is the source of truth. InferGate does not silently substitute an unavailable model with another model.
Free experienceAvailable without payment
gpt-5.4
Free text model
gpt-5.4-mini
Default quickstart model
After a real top-upValid payment credit required
gpt-image-2
Image generation
gpt-5.6-luna
Paid model access
gpt-5.6-sol
Paid model access
gpt-5.6-terra
Paid model access
Availability
Check before every integration decision
Upstream availability can change. Request GET /v1/models with the same API Key that will send production traffic.
Base gpt-5.6 is not publicly listed.
It has no enabled production route. A direct request returns HTTP 503 with model_unavailable; it is never mapped to luna, sol, or terra.