deprecated

Z.ai: GLM 5.1

z-ai/glm-5-1

Prices

Input: $1.40 per 1M tokens
unverified · disputed
Input (cache write): $0.00 per 1M tokens
low
Input (cached read): $0.26 per 1M tokens
unverified · disputed
Output: $4.40 per 1M tokens
unverified · disputed

Also available on

The same model, sold by someone else. The price above is the maker's own.

35 sales channels for this model.
Channel	What	Price
Alibaba Model Studio	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Alibaba Model Studio · alibaba-cn	Input	$0.825 per 1M tokens
	Input (>32k ctx)	$1.10 per 1M tokens
	Input (cached read)	$0.17 per 1M tokens
	Output	$3.30 per 1M tokens
	Output (>32k ctx)	$3.85 per 1M tokens
OpenRouter	Input	$0.966 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.1794 per 1M tokens
	Output	$3.04 per 1M tokens
OpenRouter · z-ai	Input	$0.9646 per 1M tokens
	Input (cached read)	$0.1791 per 1M tokens
	Output	$3.03 per 1M tokens
Coding plan · zhipuai-coding-plan	Input	$0.00 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.00 per 1M tokens
	Output	$0.00 per 1M tokens
Token plan · alibaba-token-plan	Input	$0.00 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.00 per 1M tokens
	Output	$0.00 per 1M tokens
Token plan · alibaba-token-plan-cn	Input	$0.00 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.00 per 1M tokens
	Output	$0.00 per 1M tokens
Other · abacus	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · baseten	Input	$1.30 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.30 per 1M tokens
Other · crossmodel	Input	$1.00 per 1M tokens
	Input (>32k ctx)	$1.20 per 1M tokens
	Input (cache write, >32k ctx)	$1.20 per 1M tokens
	Input (cache write)	$1.00 per 1M tokens
	Input (cached read, >32k ctx)	$0.30 per 1M tokens
	Input (cached read)	$0.20 per 1M tokens
	Output	$3.80 per 1M tokens
	Output (>32k ctx)	$4.40 per 1M tokens
Other · crusoe	Input	$1.20 per 1M tokens
	Input (cached read)	$0.25 per 1M tokens
	Output	$4.40 per 1M tokens
Other · deepinfra	Input	$1.05 per 1M tokens
	Input (cached read)	$0.205 per 1M tokens
	Output	$3.50 per 1M tokens
Other · edenai	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · fastrouter	Input	$1.05 per 1M tokens
	Output	$3.50 per 1M tokens
Other · friendli	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · hpc-ai	Input	$0.615 per 1M tokens
	Input (cached read)	$0.133 per 1M tokens
	Output	$2.46 per 1M tokens
Other · huggingface	Input	$1.00 per 1M tokens
	Input (cached read)	$0.20 per 1M tokens
	Output	$3.20 per 1M tokens
Other · impossibl	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · kilo	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · llmgateway-providers	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · merge-gateway	Input	$1.40 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · nano-gpt	Input	$0.75 per 1M tokens
	Input (cached read)	$0.15 per 1M tokens
	Output	$2.60 per 1M tokens
Other · novita-ai	Input	$1.38 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · ofox	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · openrouter	Input	$0.966 per 1M tokens
	Input (cached read)	$0.1794 per 1M tokens
	Output	$3.04 per 1M tokens
Other · orcarouter	Input	$1.40 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · pioneer	Input	$0.98 per 1M tokens
	Input (cache write)	$0.98 per 1M tokens
	Input (cached read)	$0.182 per 1M tokens
	Output	$3.08 per 1M tokens
Other · siliconflow	Input	$1.19 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.60 per 1M tokens
	Output	$3.74 per 1M tokens
Other · siliconflow-cn	Input	$1.40 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · tempr	Input	$1.40 per 1M tokens
	Input (cache write)	$0.00 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · tensorx	Input	$1.40 per 1M tokens
	Input (cache write)	$1.75 per 1M tokens
	Input (cached read)	$0.35 per 1M tokens
	Output	$4.40 per 1M tokens
Other · togetherai	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · tokengo	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · vercel	Input	$1.40 per 1M tokens
	Input (cached read)	$0.26 per 1M tokens
	Output	$4.40 per 1M tokens
Other · zenmux	Input	$0.8781 per 1M tokens
	Input (>32k ctx)	$1.17 per 1M tokens
	Input (cached read, >32k ctx)	$0.2927 per 1M tokens
	Input (cached read)	$0.1903 per 1M tokens
	Output	$3.51 per 1M tokens
	Output (>32k ctx)	$4.10 per 1M tokens

Specifications

Provider: z-ai
Context window: 204,800
Max output tokens: 128,000
Open weights: yes
Released: 04/14/2026
Retires: no date announced
First seen by this tracker: 09/14/2026

Price history

Input — per 1M tokens

Recorded changes for Input
From	Amount
09/14/2026	0.828
09/14/2026	1.4

Input (cached read) — per 1M tokens

Recorded changes for Input (cached read)
From	Amount
09/14/2026	0.179
09/14/2026	0.26

Output — per 1M tokens

Recorded changes for Output
From	Amount
09/14/2026	3.31
09/14/2026	4.4

No changes recorded

Input (cache write): 0 per 1M tokens, unchanged since 09/14/2026