Is OpenAI: GPT OSS 20B or GLM 4.6 cheaper?

OpenAI: GPT OSS 20B is cheaper on output tokens ($0.15 vs $2.20 per 1M).

Which has the larger context window, OpenAI: GPT OSS 20B or GLM 4.6?

GLM 4.6 has the larger context window (205K tokens).

OpenAI: GPT OSS 20B vs GLM 4.6

OpenAI: GPT OSS 20B is cheaper on output tokens, while GLM 4.6 offers a larger context window. Choose OpenAI: GPT OSS 20B or GLM 4.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	OpenAI: GPT OSS 20B	GLM 4.6
Provider	NovitaAI	NovitaAI
Input / 1M tokens	$0.04	$0.55
Output / 1M tokens	$0.15	$2.20
Context window	131K	205K
Parameters	21B	357B
Open weights	Yes	Yes
Released	Aug 2025	Sep 2025

OpenAI: GPT OSS 20B details →GLM 4.6 details →

FAQ

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