Z.ai: GLM-4.5-Flash
Z.ai GLM-4.5-Flash API pricing
GLM-4.5-Flash is free to call on Oxyy. It accepts text and returns text. For every Z.ai model and rate, see GLM API pricing.
Providers
Where this model runs, and what each route costs. Requests are sent to a healthy provider automatically; if one errors, the gateway retries against another serving the same model.
| Provider | Input /M | Output /M | Cache read /M |
|---|---|---|---|
| Z.ai | $0 | $0 | $0 |
Capabilities (3)
Supported parameters (1)
A parameter not listed here may be removed before the request reaches the model. When it is, the request still succeeds and the response names it, with the reason, in provider_specific_fields.dropped_params. Thinking controls work as described below whether or not they are listed.
Thinking
Thinking can be turned off: send reasoning_effort: "none", or thinking: {type: "disabled"}. reasoning_effort takes minimal, low, medium, high, xhigh, max, each mapped to the level the model uses for it where the model's levels are known (sometimes a higher level than the word asked for, or off); when it differs, the response names the level used in provider_specific_fields.dropped_params.
Pricing
What this model costs on Oxyy, pay as you go, with no subscription.
| Rate | Standard price | Charged | Unit |
|---|---|---|---|
| Input | $0 | $0 | per 1M input tokens |
| Output | $0 | $0 | per 1M output tokens |
| Cached input | $0 | $0 | per 1M cached input tokens |
Specifications
- Model ID
glm-4.5-flash- Developer
- Z.ai
- Type
- Text
- Input
- Text
- Output
- Text
- Series
- GLM-4
- Endpoint
/v1/chat/completions
Best for
Quickstart
Call glm-4.5-flash with a POST to /v1/chat/completions on https://api.oxyy.ai, using your Oxyy API key from the OXYY_API_KEY environment variable. The same key works for every model in the catalog.
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.oxyy.ai/v1",
api_key=os.environ["OXYY_API_KEY"],
)
response = client.chat.completions.create(
model="glm-4.5-flash",
messages=[
{"role": "user", "content": "Explain unified AI APIs in one sentence."},
],
)
print(response.choices[0].message.content)Availability
The share of requests to this model that completed successfully over the last 30 days. Requests the caller cancelled, and requests still in flight, are not counted. When an upstream provider errors, the gateway retries against another provider serving the same model, so a single provider incident does not necessarily show up here.
Activity
Token volume and request traffic to this model over time. Daily totals, UTC.
Prompt tokens measure input size. Completion tokens reflect total output length. Reasoning is not priced separately for this model, so it is not itemised here.
Frequently asked questions
What is GLM-4.5-Flash?
How much does GLM-4.5-Flash cost?
Does GLM-4.5-Flash support tool calling and structured outputs?
What inputs and outputs does GLM-4.5-Flash support?
Which API endpoint does GLM-4.5-Flash use?
What other models does Z.ai have?
Alternatives to GLM-4.5-Flash
Models of the same kind from other vendors, closest in price first. Prices are pay-as-you-go on Oxyy, through the same API key.