Comment by andai

See also: OpenRouter Fusion, similar idea, although it seems limited to internet research tasks? (Unclear, maybe someone who has used it can elaborate.)

What's nice is that OpenRouter included a pareto graph showing the cost as well as the performance. (But not time, unfortunately -- model fusion adds a large factor to round trip time.) Benchmarks are a lot less helpful without that.

OpenRouter: Surpassing frontier performance with fusion (blog post with benchmarks)

https://news.ycombinator.com/item?id=48624782#48629598

I did my own last weekend in a few lines of Python, though I haven't tested it much yet. (Looking for some very hard, very cheap benchmarks, if such a thing exists!)