# GPT-5.5 Pro vs phi-3-mini 3.8B

> GPT-5.5 Pro has enough public results to be ranked (#7); phi-3-mini 3.8B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gpt-5-5-pro-vs-phi-3-mini-3-8b
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both.

## Snapshot

| | GPT-5.5 Pro | phi-3-mini 3.8B |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 64.3 | — |
| Rank | 7 | — |
| Context | 1.05M | — |
| Input $/M | $30 | — |
| Output $/M | $180 | — |
| Weights | Proprietary | Proprietary |

## Reasoning

- GPT-5.5 Pro: 73.6 (#7)
- phi-3-mini 3.8B: —

| Benchmark | GPT-5.5 Pro | phi-3-mini 3.8B |
|---|---|---|
| Epoch Capabilities Index | 162.45 | 117.23 |
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| DTBench | 96% | — |
| LMCA | 53.9% | — |

## Math

- GPT-5.5 Pro: 83.8 (#8)
- phi-3-mini 3.8B: —

| Benchmark | GPT-5.5 Pro | phi-3-mini 3.8B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |

## Knowledge

- GPT-5.5 Pro: 64.2 (#17)
- phi-3-mini 3.8B: —

| Benchmark | GPT-5.5 Pro | phi-3-mini 3.8B |
|---|---|---|
| GPQA Diamond | 93.9% | — |

## FAQ

### Is GPT-5.5 Pro better than phi-3-mini 3.8B?

GPT-5.5 Pro has enough public results to be ranked (#7); phi-3-mini 3.8B does not yet, so treat this comparison as directional.

### How many benchmarks do GPT-5.5 Pro and phi-3-mini 3.8B share?

1 benchmark has published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and phi-3-mini 3.8B has 1.