Comparing 2 models

GPT-5.6 Luna vs GPT-5.6 Sol

Facts first, then task-specific rankings. A highlighted cell is better only for that row, not universally.

metric
Model 1GPT-5.6 Luna
Model 2GPT-5.6 Sol
Best for
Competition Math (#1)
Autonomous Agents (#2)
Provider
openai
openai
Context
1.1MBest
1.1MBest
Input / 1M
$1Best
$5
Output / 1M
$6Best
$30
Tool use
yesBest
yesBest
Vision
yesBest
yesBest
Reasoning
yesBest
yesBest
Open-weight
Released
Jul 9, 2026
Jul 9, 2026