Is Qwen3.5 Plus or GLM-5.1 cheaper?

Qwen3.5 Plus is cheaper on output tokens ($1.20 vs $4.40 per 1M).

Which has the larger context window, Qwen3.5 Plus or GLM-5.1?

Qwen3.5 Plus has the larger context window (262K tokens).

Qwen3.5 Plus vs GLM-5.1

Qwen3.5 Plus is cheaper on output tokens, while Qwen3.5 Plus offers a larger context window. Choose Qwen3.5 Plus or GLM-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Qwen3.5 Plus	GLM-5.1
Provider	OpenCode Zen	OpenCode Zen
Input / 1M tokens	$0.20	$1.40
Output / 1M tokens	$1.20	$4.40
Context window	262K	205K
Parameters	—	754B
Open weights	No	Yes
Released	Feb 2026	Apr 2026

Qwen3.5 Plus 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.