Comparing 2 models

GPT-5.6 Luna vs GLM 5.2

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

metric
Model 1GPT-5.6 Luna
Model 2GLM 5.2
Best for
Competition Math (#1)
Best Cheap LLM for High Volume (#1)
Provider
openai
z-ai
Context
1.1MBest
1.0M
Input / 1M
$1
$0.78Best
Output / 1M
$6
$2.45Best
Tool use
yesBest
yesBest
Vision
yesBest
Reasoning
yesBest
yesBest
Open-weight
Released
Jul 9, 2026
Jun 13, 2026