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Z.ai model

GLM 5.1

API pricing per million tokens

glm-5-1 Open weightsChecked 5h ago
Cost calculator Compare
Input
$0.966
per 1M, StreamLake (fp8)
Output
$3.04
per 1M tokens
Cached input
$0.179
no batch tier listed
Context
205K
128K max output

Where to buy it (14)

  • StreamLakefp8, fp8$0.966 / $3.04cached $0.179
  • Chutesfp8, fp8$0.98 / $3.08cached $0.098
  • DeepInfrafp4, fp4$1.05 / $3.5cached $0.205
  • SiliconFlowfp8, fp8$1.19 / $3.74cached $0.6
  • AtlasCloudfp8, fp8$1.26 / $3.96cached $0.234
  • Phaladefault region$1.21 / $4.2cached $0.6
  • Qwen (Alibaba)fp8, fp8$1.33 / $4.18cached $0.247
  • Novita AIfp8, fp8$1.38 / $4.4cached $0.26
  • Baidufp8, fp8$1.4 / $4.4cached $0.26
  • Friendlidefault region$1.4 / $4.4cached $0.26
  • GMICloudfp8, fp8$1.4 / $4.4cached $0.26
  • Nebiusfp8, fp8$1.4 / $4.4$2.15 blended
  • Z.aifp8, fp8$1.4 / $4.4cached $0.26
  • Venicefp8, fp8$1.4 / $4.4cached $0.26

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $157.32 direct.

Related models

About GLM 5.1

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks.

Takes text in and returns text. First listed Sep 23, 2026. Blended price $1.48 per 1M tokens at 3 input to 1 output.

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Questions

How much does GLM 5.1 cost?

$0.966 per million input tokens and $3.04 per million output tokens, with cached input at $0.179.

What is the context window of GLM 5.1?

205K tokens, with up to 128K tokens of output.

Where is GLM 5.1 cheapest?

Of 14 routes tracked, StreamLake is cheapest at $0.966 input and $3.04 output per million tokens.

Has GLM 5.1's price changed?

Yes. The output price went from $3.03 to $4.4, first seen Sep 24, 2026.

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Weekly: LLM API list prices that changed, Thursday mornings.