Zhipu AI (GLM)

GLM-5.1

API pricing, specifications, and comparison for GLM-5.1 by Zhipu AI (GLM).
Input / 1M tokens
$1.40
Output / 1M tokens
$4.40
Context Window
200K
Currency
USD

Capabilities

TextFunction CallingStructured Output

Official Details

Rate LimitNot specified on pricing page
Free TierGLM-4.7-Flash is completely FREE; GLM-4.6V-Flash is completely FREE
Long ContextTiered pricing: ≤32K input ¥6/¥24, >32K input ¥8/¥28. Cache storage limited-time free.
GLM-5.2 (NEW)¥8/¥28, 1M context
Cache Hit (≤32K)¥1.30/M
GLM-4.7-FlashFREE (200K context)