---
id: "z-ai/glm-4.5-air"
also: ["z-ai/glm-4.5-air", "zai-org/GLM-4.5-Air", "hf/zai-org/GLM-4.5-Air", "requesty/zai/glm-4.5-air", "vercel/zai/glm-4.5-air"]
card_usd_per_m: "0.2 in, 1.1 out, at z-ai/fp8"
cheapest_list_usd_per_m: "0.13 in, 0.85 out, at novita on hf"
cheapest_effective_usd_per_m: "0.0762 in, 0.845 out, at novita/bf16 on openrouter"
context: 131072
max_output: 98304
input: ["text"]
output: ["text"]
released: "2025-07-25"
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["frequency_penalty", "include_reasoning", "max_tokens", "presence_penalty", "reasoning", "repetition_penalty", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_k", "top_p"]
endpoints: 7
gateways: "openrouter (3), hf (2), requesty (1), vercel (1)"
no_training: 4
trains: 0
retains_prompts: 0
---
# Z.ai: GLM 4.5 Air

The GLM-4.5 series models are foundation models designed for intelligent agents. GLM-4.5 has 355 billion total parameters with 32 billion active parameters, while GLM-4.5-Air adopts a more compact design with 106 billion total parameters and 12 billion active parameters. GLM-4.5 models unify reasoning, coding, and intelligent agent capabilities to meet the complex demands of intelligent agent applications.