GLM 4.5 Air API

Zhipu's GLM 4.5 Air, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.

Providers compete for each request. The exchange ranks the offers that meet your rules by estimated charge. It fixes your maximum charge before the first token, and you pay for the tokens that the model uses.
The OpenAI and Anthropic APIs. Use the OpenAI or Anthropic SDK that you have. Set the base URL and your key, and send glm-4.5-air as the model.
Your data rules. Send x-liquid-retention: none and only offers whose provider does not keep your content compete for the request.

Facts

Model name: glm-4.5-air
Maker: Zhipu
Context window: 131.1K tokens
Input price: $0.130 per million tokens
Output price: $0.850 per million tokens
Providers: 1 independent provider
Regions: us

Providers

Architect: us, $0.130 input and $0.850 output per million tokens, $0.130 cache read per million tokens, 131.1K tokens of context

Scores

HLE: 7.0, #180 of 273
GPQA: 73.3, #144 of 250
AA-LCR: 46.7, #168 of 237
Terminal-Bench Hard: 20.5, #92 of 166
LiveCodeBench: 68.4, #29 of 130
AIME 2025: 80.7, #23 of 100
MMLU-Pro: 81.5, #40 of 133
τ²-Bench: 46.5, #106 of 169
IFBench: 37.6, #137 of 178

Scores: Artificial Analysis (https://artificialanalysis.ai/)

Request

curl https://router.inference.ai.exchange/v1/chat/completions \
  -H "Authorization: Bearer $LIQUID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-4.5-air",
    "messages": [{"role":"user","content":"Say hello."}]
  }'

Questions

What is GLM 4.5 Air?: Served by intent-router: each job goes to the cheapest healthy upstream for this model.
How much does GLM 4.5 Air cost?: Offers now ask $0.130 per million input tokens and $0.850 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
What is the context length of GLM 4.5 Air?: The largest offer takes 131,072 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
What can GLM 4.5 Air do?: Its providers list Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
What inputs and outputs does GLM 4.5 Air support?: Text → Text.
Which providers serve GLM 4.5 Air?: 1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
How do I call GLM 4.5 Air?: Send "glm-4.5-air" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
When was GLM 4.5 Air listed?: The exchange first listed it on 10/8/2026. This is not its release date.