Marketing and content teams run the same prompt across ChatGPT-5, Claude Opus 4, Gemini 2.5 Pro, and Sonnet 4, then score the results against criteria that matter for the actual job, with reference documents in the loop. No code.
The output is which model and which phrasing actually move the metric — instead of the gut-feel "use GPT for this, Claude for that" workflow most teams default to.