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Z.AI GLM-5.1

Z.AI GLM

Released 2026-04-01
ChatJSON modeStreamingTool calling
200K
Context window
Text
Modalities
$1.40 / $4.40
Input / output per M tokens

Providers & pricing (1)

ProviderInput $/MOutput $/MCached input $/MContext
Z.AI
glm-5.1
$1.40$4.40$0.26200K

Cloptima's known static list pricing per million tokens; live/negotiated rates may differ.

Example: 1,000 requests of 2,000 input and 500 output tokens costs about $5.00 on Z.AI.

Use it through Cloptima

curl https://api.cloptima.ai/v1/ai/chat/completions \
  -H "Authorization: Bearer $CLOPTIMA_PAT" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.1",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use the bare model name and Cloptima picks the provider for each request: the lowest estimated cost among the providers your credentials or managed credits can use, filtered by your policy and provider health.

An OpenAI-compatible endpoint with per-team cost attribution, budgets and policy controls.

How the AI gateway works