Z.ai: GLM 5.1

Z.AI · family glm-5.1

Identity and capabilities

Known source identifiers: novita: zai-org/glm-5.1 · openrouter: z-ai/glm-5.1 · zai-direct: GLM-5.1

zai-org/glm-5.1 · availability available · verified just now · source official pricing page

Provider limits: context 204,800 · maximum output 131,072 · vision No · reasoning Yes · tool use Yes

Pricing components as published by the source
Component	Service tier	Context	Price	Unit	As published
Cached input	Standard	Default context	$0.26	per 1M tokens	`$0.26`
Input	Standard	Default context	$1.38	per 1M tokens	`$1.38`
Output	Standard	Default context	$4.40	per 1M tokens	`$4.4`

z-ai/glm-5.1 · availability available · verified 8 h ago · source official api

Provider limits: context 200,000 · maximum output 128,000 · vision No · reasoning Yes · tool use Yes

Pricing components as published by the source
Component	Service tier	Context	Price	Unit	As published
Cached input	Standard	Default context	$0.1794	per 1M tokens	`0.0000001794`
Input	Standard	Default context	$0.966	per 1M tokens	`0.000000966`
Output	Standard	Default context	$3.036	per 1M tokens	`0.000003036`

GLM-5.1 · availability available · verified 45 h ago · source official pricing page

Provider limits: context Unknown · maximum output Unknown · vision Unknown · reasoning Unknown · tool use Unknown

Pricing components as published by the source
Component	Service tier	Context	Price	Unit	As published
Cached input	Standard	Default context	$0.26	per 1M tokens	`$0.26`
Input	Standard	Default context	$1.40	per 1M tokens	`$1.4`
Output	Standard	Default context	$4.40	per 1M tokens	`$4.4`

36% off z-ai/glm-5.1
OpenRouter · officially stated 36% · End date unknown
Official source