# One API key for Claude, GPT, Gemini, Grok, DeepSeek, FLUX and Veo

> Source: <https://dev.to/ahadvirani_ls/one-api-key-for-claude-gpt-gemini-grok-deepseek-flux-and-veo-16mi>
> Published: 2026-10-12 04:34:14+00:00

LazySusan has an API and a Python SDK that put chat, image and video models behind one key and one prepaid balance. Switching models means changing one string.

``` python
from lazysusan import LazySusan

client = LazySusan()  # reads LAZYSUSAN_API_KEY

reply = client.chat.create(
    model="anthropic/claude-sonnet-5-5",
    messages=[{"role": "user", "content": "Summarise this in two lines: ..."}],
)
print(reply.text)
print(reply.usage.cost_credits)
```

What it covers, per the docs:

The Python SDK has zero dependencies, is typed, and runs on Python 3.9+.

Install: `pip install lazysusan`

Docs: [https://www.lazysusan.ai/developers/docs](https://www.lazysusan.ai/developers/docs)

Disclosure: I built this.