# GPT-5.4 Pro vs Phi-3.5-mini

> GPT-5.4 Pro has enough public results to be ranked (#16); Phi-3.5-mini does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gpt-5-4-pro-vs-phi-3-5-mini
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-5.4 Pro leads 42.6 to 34.0.
- Phi-3.5-mini has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.4 Pro | Phi-3.5-mini |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 58.8 | 36.4 |
| Rank | 16 | — |
| Context | 1.05M | — |
| Input $/M | $30 | — |
| Output $/M | $180 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-5.4 Pro: 42.6 (#89)
- Phi-3.5-mini: 34.0 (#231)

| Benchmark | GPT-5.4 Pro | Phi-3.5-mini |
|---|---|---|
| WeirdML | 57.4% | — |
| BigCodeBench Instruct | — | 32.8% |
| BigCodeBench Complete | — | 38.5% |

## Reasoning

- GPT-5.4 Pro: 71.0 (#10)
- Phi-3.5-mini: —

| Benchmark | GPT-5.4 Pro | Phi-3.5-mini |
|---|---|---|
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| CritPt | 30% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| Epoch Capabilities Index | 159.12 | — |
| PIQA | — | 81% |

## Math

- GPT-5.4 Pro: 72.0 (#17)
- Phi-3.5-mini: —

| Benchmark | GPT-5.4 Pro | Phi-3.5-mini |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |
| GSM8K | — | 86.2% |

## Knowledge

- GPT-5.4 Pro: 68.3 (#6)
- Phi-3.5-mini: —

| Benchmark | GPT-5.4 Pro | Phi-3.5-mini |
|---|---|---|
| GPQA Diamond | 94.6% | — |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
| BoolQ | — | 78% |

## FAQ

### Is GPT-5.4 Pro better than Phi-3.5-mini?

GPT-5.4 Pro has enough public results to be ranked (#16); Phi-3.5-mini does not yet, so treat this comparison as directional.

### Is GPT-5.4 Pro or Phi-3.5-mini better for coding?

GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 34.0 in the Noometry coding category.

### How many benchmarks do GPT-5.4 Pro and Phi-3.5-mini share?

0 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Phi-3.5-mini has 5.