One Prompt, Five Models: Comparing Side by Side

The fastest way to know which model is right for your work is to stop guessing: send one prompt to several models at once and read the answers side by side. In idapt this is a built-in gesture, not a copy-paste ritual.

Parallel tabs, one message

Send a message, then add another model's take: each response becomes a tab on the same message, sharing the full conversation context. Ask a hard question, open tabs for a frontier model, a reasoner, and a fast model, and compare.

What to compare beyond correctness:

Reasoning legibility: can you follow how it got there?
Instruction fidelity: did it do what you asked or what it preferred?
Editability: is the output in a shape you can work with?

When triangulation is the point

For anything load-bearing (a number in a client deck, a legal reading, a medical claim to check with a professional), one model's confident answer is not evidence. Run it across two or three independent models: agreement is signal, disagreement is a map of exactly what to verify. The research workflow builds this into a habit.

Picking your defaults

Patterns that hold up:

Cheap default, frontier escalation: route routine prompts to a fast model and switch mid-conversation (context follows) when the task gets hard.
Per-job keepers: writers keep a drafting model and an editing model; developers keep a coder and a reviewer. The best-of roundups are a data-backed starting point.
Re-audition monthly: the best model changes; your prompts are the only benchmark that perfectly matches your work.

Good to know

Regenerating with a different model creates a sibling response; nothing is overwritten and every branch stays navigable.
Pricing differences are visible before you send via the cost estimate.
The public compare pages put specs and benchmarks side by side; parallel tabs put actual answers side by side. Use both.

Start with the question you asked an AI yesterday: re-ask it in idapt with three tabs and see whether your current default survives. The model tabs help article covers every control.