Aleph Alpha (gateway)

Route Aleph Alpha calls through the Respan gateway after the Aleph Alpha model you want is available in your Respan model list. Only your RESPAN_API_KEY is needed in the application code.

Setup

Use a current Aleph Alpha model ID from your Respan model list.

Install packages

$ pip install openai

Set environment variables

$ export RESPAN_API_KEY="YOUR_RESPAN_API_KEY"

No ALEPH_ALPHA_API_KEY is needed in this application. The Respan gateway handles provider authentication.

Point an OpenAI-compatible client to the Respan gateway

1 import os
2 from openai import OpenAI
3 
4 client = OpenAI(
5     api_key=os.environ["RESPAN_API_KEY"],
6     base_url="https://api.respan.ai/api",
7 )
8 
9 response = client.chat.completions.create(
10     model="YOUR_ALEPH_ALPHA_MODEL_ID",
11     messages=[{"role": "user", "content": "Say hello in three languages."}],
12 )
13 print(response.choices[0].message.content)

Switch models

Change the model parameter to use 250+ models from different providers through the same gateway.

1 response = client.chat.completions.create(model="YOUR_ALEPH_ALPHA_MODEL_ID", messages=messages)
2 response = client.chat.completions.create(model="gpt-5.5", messages=messages)
3 response = client.chat.completions.create(model="claude-sonnet-4-5-20250929", messages=messages)

See the full model list.