Models API: list available model IDs

Send GET https://api.laozhang.ai/v1/models with your API key to list the models that key can see.

Item	Details
Response format	OpenAI list format
Model ID	The `id` of each entry in `data[]`; pass it as `model` in a request
Not included	Prices, token groups, and supported endpoints; check them in the model catalog

List models

Create an API key in Token management and export it in your terminal:

export LAOZHANG_API_KEY="YOUR_LAOZHANG_API_KEY"

cURL
Python

curl --fail-with-body --max-time 60 \
  "https://api.laozhang.ai/v1/models" \
  -H "Authorization: Bearer $LAOZHANG_API_KEY"

Install the SDK with python -m pip install openai.

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["LAOZHANG_API_KEY"],
    base_url="https://api.laozhang.ai/v1",
    timeout=60.0,
)
model_ids = sorted(model.id for model in client.models.list())
print(f"{len(model_ids)} models")
print("gpt-5.4-mini available:", "gpt-5.4-mini" in model_ids)

The Python example prints how many models the key can see and whether gpt-5.4-mini is among them. Replace that ID to check the model you plan to call.

Read the response

The response is a list object. This example is shortened to one entry:

{
  "object": "list",
  "data": [
    {
      "id": "gpt-5.4-mini",
      "object": "model",
      "created": 1626777600,
      "owned_by": "openai"
    }
  ]
}

Field	Meaning
`data[].id`	Model ID to send in the `model` field of a request.
`data[].object`	Object type, `model`.
`data[].created`	Timestamp on the model record.
`data[].owned_by`	Owner or routing label for the model.

The created and owned_by values above are examples; their contents depend on how each model is configured, so identify models by id only. Ignore fields your client does not recognize.

Common questions

Does the Models API return prices?

No. The response lists model IDs and basic metadata, not prices or billing units. Find input, output, and per-call prices in the model catalog, and the charge for each request in call logs.

Why is a model from the catalog missing from the list?

The list reflects the key you used. The usual causes are the key’s token group, account permissions, or a change in the model’s status. Compare the key’s group in Token management with the model’s token groups in the catalog. If they match and the model is still missing, contact support with the time, model ID, and token group; never send the key itself.

Why does a listed model return 403 or 404?

Check the endpoint first. A listed model may accept only one format, such as Chat Completions, Responses, Anthropic Messages, or Gemini, which the catalog shows under Endpoints. If the endpoint is right, confirm the exact model ID and your token group, then follow model availability and permissions.

Core APIs

Other APIs

Models API: list available model IDs

List models

Read the response

Common questions

Does the Models API return prices?

Why is a model from the catalog missing from the list?

Why does a listed model return 403 or 404?

​List models

​Read the response

​Common questions

​Does the Models API return prices?

​Why is a model from the catalog missing from the list?

​Why does a listed model return 403 or 404?

​Related documentation

List models

Read the response

Common questions

Does the Models API return prices?

Why is a model from the catalog missing from the list?

Why does a listed model return 403 or 404?

Related documentation