Is Claude Haiku 3.5 or GLM-5.1 cheaper?

Claude Haiku 3.5 is cheaper on output tokens ($4.00 vs $4.40 per 1M).

Which has the larger context window, Claude Haiku 3.5 or GLM-5.1?

GLM-5.1 has the larger context window (205K tokens).

Claude Haiku 3.5 vs GLM-5.1

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

Spec	Claude Haiku 3.5	GLM-5.1
Provider	OpenCode Zen	OpenCode Zen
Input / 1M tokens	$0.80	$1.40
Output / 1M tokens	$4.00	$4.40
Context window	200K	205K
Parameters	—	754B
Open weights	No	Yes
Released	Oct 2024	Apr 2026

Claude Haiku 3.5 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.