Llama 3.2 3B Instruct vs Phi-3.5-mini Instruct: the real cost to run each

The honest, $0-markup cost to run Llama 3.2 3B Instruct (Meta, 3B) and Phi-3.5-mini Instruct (Microsoft, 3.8B), side by side — free on your own machine, on your own rented GPU at the vendor's price, or via your own API key.

Llama 3.2 3B Instruct vs Phi-3.5-mini Instruct — cost comparison

Which should you pick?

• Easiest to run locally: Either — both need a similar amount of VRAM.
• Pay-as-you-go (your own API key): Llama 3.2 3B Instruct ~$0.19/1M vs Phi-3.5-mini Instruct ~$0.13/1M — size-based estimates; open the advisor for live prices.
• Cheapest to rent by the hour: Either.
• Longest context: Either — same context window.

VRAM, size, context and license are facts from the catalog and the shared cost engine; API prices are real where we have them (labeled "est." otherwise). We don't rank model quality or quote benchmarks here.

Full cost breakdown: Llama 3.2 3B Instruct →
Full cost breakdown: Phi-3.5-mini Instruct →

Open the free Spanvero advisor → to compare them live for your exact workload and hardware.

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Spanvero · All comparisons · Prices as of 2026-07-27. $0 markup, your own accounts, we never resell compute. © 2026 Cynosure LLC.