← All models
Gemini 3.5 Flash vs Phi 4
List-price comparison · Gemini 3.5 Flash details · Phi 4 details
For a typical workload (100,000 requests / mo), Phi 4 costs 98% less — $13.40/mo vs $540.00/mo.
| Gemini 3.5 Flash | Phi 4 | |
|---|---|---|
| Input / 1M tokens | $1.50 | $0.065 |
| Output / 1M tokens | $9.00 | $0.140 |
| Typical request (1,200 in + 400 out) | $0.0054 | $0.0001 |
| Context window | 1,048,576 tokens | 16,384 tokens |
| Max output | 65,536 tokens | 16,384 tokens |
| Tier | Flash | Flash |
| Provider | Microsoft |
Projected monthly cost
1,000 requests / month$5.40 vs $0.13410,000 requests / month$54.00 vs $1.34100,000 requests / month$540.00 vs $13.40
Rows open both models in the calculator — adjust volume and token counts there.
Gemini 3.5 Flash
Fast, cheap multi-modal model with the same 1M-token context as the Pro tier — good for high-volume document Q&A and image/audio triage.
Reasoning quality trails the Pro tier on complex, multi-step tasks; best used where speed and context size matter more than depth.
Phi 4
Auto-synced from OpenRouter — no editorial write-up yet.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.