Is Llama 3.1 8B Instruct or GLM-5.1 cheaper?

Llama 3.1 8B Instruct and GLM-5.1 have comparable output pricing.

Which has the larger context window, Llama 3.1 8B Instruct or GLM-5.1?

GLM-5.1 has the larger context window (131K tokens).

Llama 3.1 8B Instruct vs GLM-5.1

Both have similar output pricing, while GLM-5.1 offers a larger context window. Choose Llama 3.1 8B Instruct or GLM-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Llama 3.1 8B Instruct	GLM-5.1
Provider	Nvidia	Nvidia
Input / 1M tokens	$0.00	$0.00
Output / 1M tokens	$0.00	$0.00
Context window	16K	131K
Parameters	—	754B
Open weights	Yes	Yes
Released	Jan 2025	Mar 2026

Llama 3.1 8B Instruct details →GLM-5.1 details →

FAQ

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