Model comparison

GPT-5.6 family vs GPT-5

Capability radar, value bars, and side-by-side posture.

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GPT-5.6 family
Not scored
value score
GPT-5
94
value score
GPT-5.6 family ctx
GPT-5 ctx
400K

Capability radar

Value · context · multimodal · openness · speed posture

Value head-to-head

  • GPT-594

Attribute tape

FieldGPT-5.6 familyGPT-5
DeveloperOpenAIOpenAI
Context400K
ModalitiesText, Code, Image, Audio
OpennessProprietary Model
SpeedFast
PriceMid-High
Value score94
SummaryGPT-5.6 is OpenAI's latest frontier model family, released in three capability tiers — Sol (flagship), Terra (balanced everyday), and Luna (fastest/most cost-efficient) — available through ChatGPT, Codex, and the OpenAI API for coding, knowledge work, research, and agentic workflows.OpenAI frontier multimodal model.
Open GPT-5.6 familyOpen GPT-5