OpenRouter acts as a model aggregator letting you easily switch between models...

https://josuesbestword.quillnesty.com/posts/how-to-compare-llm-answers-without-getting-a-noisy-firehose

OpenRouter acts as a model aggregator letting you easily switch between models but each call resets the context. Suprmind’s multi-model orchestrator lets you chain models sequentially, keeping context alive throughout