When you have 400+ AI models available in one subscription, how do you actually decide which one to use for each step?

One thing that caught my attention about the current automation landscape is the idea of having access to 400+ AI models through a single subscription instead of managing individual API keys for OpenAI, Claude, Anthropic, and all the others.

But this raises a practical question: if you have all these models available, how do you decide which one to use for different parts of your automation workflow?

I get it intellectually—different models are better at different things. Claude might be better for writing, GPT-4 for reasoning, something faster for simple classification. But in practice, how do you actually make that decision when you’re building a workflow?

Do you:

  • Just pick one model and stick with it for everything?
  • Run tests to benchmark which model performs best for your specific task?
  • Use the same model for similar tasks across different workflows?
  • Have it be something you configure once and never think about again?

I’m trying to understand whether this “400+ models” thing is actually useful in practice or if it’s mostly marketing hype. When you’re automating a real business process that involves data extraction, transformation, and analysis, do you actually benefit from model variety, or does picking one solid model cover 95% of your needs?