Model comparison
Mercury 2.5 vs Phi-4 Mini
Phi-4 Mini has enough public results to be ranked (#280); Mercury 2.5 does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
MicrosoftSummary
- Mercury 2.5 is cheaper at $0.04 / $0.15 per million input/output tokens, against $0.075 / $0.30 for Phi-4 Mini.
- Mercury 2.5 accepts more context: 260K tokens versus 128K.
- Phi-4 Mini has downloadable open weights; the other is API-only.
Side by side
| Mercury 2.5 | Phi-4 Mini | |
|---|---|---|
| Provider | Inception | Microsoft |
| Noometry Index | 30.2 | 30.4 |
| Released | 2026-09-08 | 2024-12-11 |
| Weights | Proprietary | Open |
| Context window | 260K | 128K |
| Max output | 66K | 4K |
| Input $ / M tokens | $0.04 | $0.075 |
| Output $ / M tokens | $0.15 | $0.30 |
| Results tracked | 2 | 3 |
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Category by category
Coding Not comparable
Mercury 2.5: —, Phi-4 Mini: 27.6 (#312)
Reasoning Not comparable
Mercury 2.5: —, Phi-4 Mini: 21.7 (#190)
| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| CritPt | — | 0% |
Math Not comparable
Mercury 2.5: 22.4, Phi-4 Mini: —
| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| ProofBench | 3% | — |
Knowledge Not comparable
Mercury 2.5: —, Phi-4 Mini: 24.8 (#261)
| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| Vectara Hallucination Rate | — | 23.5% |
Frequently asked questions
Is Mercury 2.5 better than Phi-4 Mini?
Phi-4 Mini has enough public results to be ranked (#280); Mercury 2.5 does not yet, so treat this comparison as directional.
Which is cheaper, Mercury 2.5 or Phi-4 Mini?
Mercury 2.5 is cheaper. It lists at $0.04 per million input tokens and $0.15 per million output tokens; Phi-4 Mini lists at $0.075 and $0.30.
Which has the bigger context window?
Mercury 2.5 does, with 260K tokens against 128K.
How many benchmarks do Mercury 2.5 and Phi-4 Mini share?
0 benchmarks have published results for both models. Mercury 2.5 has 2 scored results on Noometry and Phi-4 Mini has 3.