# Mercury 2.5 vs Phi-4 Mini

> Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-2-5-vs-phi-4-mini
- Last updated: 2026-10-12
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Mercury 2.5 scores higher in 1 category and Phi-4 Mini in 1 category; one gap is clear of the uncertainty.
- The widest gap is in coding, where Mercury 2.5 leads 39.5 to 28.1.
- The biggest single-benchmark swing is SciCode: 38.5% for Mercury 2.5 and 10.8% for Phi-4 Mini.
- 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.

## Snapshot

| | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| Provider | Inception | Microsoft |
| Noometry Index | 33.5 | 30.9 |
| Rank | 242 | 283 |
| Context | 260K | 128K |
| Input $/M | $0.04 | $0.075 |
| Output $/M | $0.15 | $0.30 |
| Weights | Proprietary | Open |

## Coding

- Mercury 2.5: 39.5 (#156)
- Phi-4 Mini: 28.1 (#317)

| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| SciCode | 38.5% | 10.8% |
| ALE-Bench | 301.65 | — |

## Reasoning

- Mercury 2.5: 22.4 (#193)
- Phi-4 Mini: 22.4 (#195)

| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| CritPt | 0% | 0% |

## Math

- Mercury 2.5: 23.3 (#272)
- Phi-4 Mini: —

| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| ProofBench | 3% | — |

## Knowledge

- Mercury 2.5: —
- Phi-4 Mini: 25.3 (#262)

| Benchmark | Mercury 2.5 | Phi-4 Mini |
|---|---|---|
| Vectara Hallucination Rate | — | 23.5% |

## FAQ

### Is Mercury 2.5 better than Phi-4 Mini?

Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.9 on the Noometry Index.

### 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.

### Is Mercury 2.5 or Phi-4 Mini better for coding?

Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 28.1 in the Noometry coding category.

### 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?

2 benchmarks have published results for both models. Mercury 2.5 has 4 scored results on Noometry and Phi-4 Mini has 3.