BREAKING
OpenAI Previews GPT-5.6 Sol, Terra, Luna
Three Tiers, One Generation
Sol
Flagship
●
Top performance
●
Ultra parallel mode
Terra
Balanced
●
Competitive results
●
Lower cost
Luna
Fast
●
Lowest cost tier
●
Strong capability
Terminal-Bench 2.1 Scores
Sol Ultra
91.9
Sol
88.8
Claude Mythos 5
88
Terra
84.3
Luna
82.5
0
$
Sol output
0
$
Terra output
0
$
Luna output
Preview Now, Broad Rollout Later
1
~20 partners via API
↓
2
U.S. government review
↓
3
ChatGPT and Codex rollout
Broad Availability Is the Next Focus
AI NEWS BLITZ
OpenAI has opened a limited preview of its new GPT-5.6 model family.