Is Claude 4 Opus Thinking or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($1.30 vs $75.00 per 1M).

Which has the larger context window, Claude 4 Opus Thinking or GLM 4.5?

Claude 4 Opus Thinking has the larger context window (200K tokens).

Claude 4 Opus Thinking vs GLM 4.5

GLM 4.5 is cheaper on output tokens, while Claude 4 Opus Thinking offers a larger context window. Choose Claude 4 Opus Thinking or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude 4 Opus Thinking	GLM 4.5
Provider	NanoGPT	NanoGPT
Input / 1M tokens	$14.99	$0.30
Output / 1M tokens	$75.00	$1.30
Context window	200K	128K
Parameters	—	355B
Open weights	No	No
Released	Jul 2025	Apr 2025

Claude 4 Opus Thinking details →GLM 4.5 details →

FAQ

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