Comparing 2 models

Grok 4.5 vs GLM 5.1

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

metric
Model 1Grok 4.5
Model 2GLM 5.1
Best for
Best Cheap LLM for High Volume (#1)
Translation (#1)
Provider
x-ai
z-ai
Context
500KBest
205K
Input / 1M
$2
$0.97Best
Output / 1M
$6
$3.04Best
Tool use
yesBest
yesBest
Vision
yesBest
Reasoning
yesBest
yesBest
Open-weight
yesBest
Released
Jul 8, 2026
Jan 20, 2025