The honest, $0-markup cost to run Phi-3.5-mini Instruct (Microsoft, 3.8B) and Phi 4 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.
| Phi-3.5-mini Instruct | Phi 4 mini instruct | |
|---|---|---|
| Parameters | 3.8B | 3.8B |
| Context window | 131.1K | 131.1K |
| License | Commercial OK | Commercial OK |
| VRAM to run | ✓ ~5.0 GB (Q4_K_M) | ~6.0 GB (Q4_K_M) |
| Rent a GPU | $0.06/hr | $0.06/hr |
| Your API key | ✓ $0.13/1M (est.) | $0.22/1M (last-known) |
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: Phi-3.5-mini Instruct →
Full cost breakdown: Phi 4 mini instruct →
Open the free Spanvero advisor → to compare them live for your exact workload and hardware.
Spanvero · All comparisons · Prices as of 2026-07-06. $0 markup, your own accounts, we never resell compute. © 2026 Cynosure LLC.
A short email of real AI price moves, straight from the daily log — no hype. We're collecting the list now; the first issue goes out when it opens. Unsubscribe with one click.