I Tried Using AI to Shop for a GPU. Here's What Actually Worked

Listings checked on October 5, 2026.

Running a model through an API for every routine task was starting to feel expensive, so I began looking at a local setup. First question: which GPU could I actually buy for it?

I started with 24 GB of VRAM as a shopping filter. More room for model weights and context was the appeal. The exact model, quantization, and context length would still determine what fits, but this gave me a concrete place to start: an RTX 3090 with 24 GB.

I could have asked an LLM for “the best GPU for local AI” and received a very confident top-five list. Useful for learning the specs, less useful when the card in that list is sold out, the price belongs to a different seller, or nobody can tell you exactly which board you're getting.

At 2Captcha, I used our MCPfor web search and...

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