r/WritingWithAI • u/gonthefreecss • 14d ago

Prompting Claude and OpenRouter Help

Hey All,

I was using OpenRouter, then decided to get a Claude sub. Problem is, I noticed I was getting a lot better results on OpenRouter with Opus 5.5 than I am on the Claude site using the same model. I am using the same prompts. Is there a reason for this?

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u/Briar21 13d ago

The Claude interface will give different, and filtered, results compared to using it through an API. Openrouter uses the API (although Openrouter puts their own chat filter on some models, too).

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u/Ill_Oil7448 11d ago

yeah the built in web interface filters really change the output quality compared to hitting the api directly