Is GLM-4.5-Air or GLM-5-Turbo cheaper?

GLM-4.5-Air and GLM-5-Turbo have comparable output pricing.

Which has the larger context window, GLM-4.5-Air or GLM-5-Turbo?

GLM-5-Turbo has the larger context window (200K tokens).

GLM-4.5-Air vs GLM-5-Turbo

Both have similar output pricing, while GLM-5-Turbo offers a larger context window. Choose GLM-4.5-Air or GLM-5-Turbo based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-4.5-Air	GLM-5-Turbo
Provider	Z.AI Coding Plan	Z.AI Coding Plan
Input / 1M tokens	$0.00	$0.00
Output / 1M tokens	$0.00	$0.00
Context window	131K	200K
Parameters	—	—
Open weights	Yes	No
Released	Jul 2025	Mar 2026

GLM-4.5-Air details →GLM-5-Turbo details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.