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

Ahad V — Mon, 12 Oct 2026 04:34:14 +0000

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.

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:

Streaming, tool calling, JSON output and image input
Async video generation
Token usage and credit cost on every response
Per-key monthly budgets, model allowlists and expiry dates
Metadata tags so you can filter usage by project or feature

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

Disclosure: I built this.

DEV Community: Ahad V

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