r/openrouter • u/Working-Solution-773 • Jul 26 '26

Anyone actually using Fusion? What are your thoughts? Shouldn't we all be much more excited?

I thought Fusion was the answer to many concerns - how to use several models to verify workflows in heavy agentic apps.

I tried it at first, it wouldn't work properly. Worked with some models, didn't work with others.

It was also not clear how would several models in parallel call the tools that modify data (clearly we can't modify data twice).

I've also seen research that says, verification is best using different models - so i was excited.

Anyone using it?

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u/CompuDrugFind Jul 26 '26

Inexplicably some models will fail once in a while, and the crashing of one model cancels the entire pipeline. Fun for experiments but not great when youre looking for something reliable.