Is GLM-5.1 or GPT-3.5-turbo cheaper?

GPT-3.5-turbo is cheaper on output tokens ($1.50 vs $4.40 per 1M).

Which has the larger context window, GLM-5.1 or GPT-3.5-turbo?

GLM-5.1 has the larger context window (200K tokens).

GLM-5.1 vs GPT-3.5-turbo

GPT-3.5-turbo is cheaper on output tokens, while GLM-5.1 offers a larger context window. Choose GLM-5.1 or GPT-3.5-turbo based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.1	GPT-3.5-turbo
Provider	OrcaRouter	OrcaRouter
Input / 1M tokens	$1.40	$0.50
Output / 1M tokens	$4.40	$1.50
Context window	200K	16K
Parameters	754B	20B
Open weights	Yes	No
Released	Apr 2026	Mar 2023

GLM-5.1 details →GPT-3.5-turbo details →

FAQ

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