Last refreshed 2026-05-22. Next refresh: weekly.
Why use GLM-4.5-Air on Vercel AI Gateway?
Vercel AI Gateway offers GLM-4.5-Air with pay-as-you-go pricing at $0.20/1M input tokens. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Compare GLM-4.5-Air across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],zai/glm-4.5-airRequest example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="zai/glm-4.5-air",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "zai/glm-4.5-air", not the LLMReference slug "glm-4.5-air".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.
Compare GLM-4.5-Air Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Fireworks AI | $0.90 | $0.90 |
| OpenRouter | $0.13 | $0.85 |
| Vercel AI Gateway | $0.20 | $1.10 |
| Novita AI | $0.13 | $0.85 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.20 |
| Output tokens | $1.10 |
Capabilities
About GLM-4.5-Air
GLM-4.5-Air is Tsinghua Knowledge Engineering Group (THUDM)'s GLM-4 model. It offers a 128K-token context window.
FAQ
What does GLM-4.5-Air cost on Vercel AI Gateway?
On Vercel AI Gateway, GLM-4.5-Air costs $0.2 per 1M input tokens and $1.1 per 1M output tokens.
What is the context window for GLM-4.5-Air on Vercel AI Gateway?
GLM-4.5-Air supports a 128,000 token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other GLM-4.5-Air providers?
GLM-4.5-Air is available from 4 providers. The cheapest input pricing is $0.13/1M tokens from OpenRouter.
What API model ID do I use for GLM-4.5-Air on Vercel AI Gateway?
Use the model ID zai/glm-4.5-air when calling Vercel AI Gateway's API.
Who created GLM-4.5-Air?
GLM-4.5-Air was created by Tsinghua Knowledge Engineering Group (THUDM) as part of the GLM-4 model family.
Is GLM-4.5-Air open source?
GLM-4.5-Air is not open source; the seed data lists it as proprietary.