# GPT-4.1 vs Phi-3.5-mini

> Side-by-side benchmark comparison for GPT-4.1 and Phi-3.5-mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-1-vs-phi-3-5-mini
- Last updated: October 14, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-4.1 and Phi-3.5-mini share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- GPT-4.1 has the larger published context window at 1M.

## Model Snapshot

| Property | GPT-4.1 | Phi-3.5-mini |
|----------|----------|----------|
| Creator | OpenAI | Microsoft |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Independent public score (not head-to-head) | 37.57 | null |
| Benchmarks Covered | 7 | 8 |
| Pricing (input/output) | $2.00 / $8.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: Coming soon
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 25.65% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: Coming soon
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 54.6% | Coming soon | Coming soon |
| HumanEval | Coming soon | 62.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 72.8 (Unranked · 2 rankable rows)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| BBH | Coming soon | 69% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 54.7 (Unranked · 1 rankable row)
- Phi-3.5-mini public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 35.7 (Supported · #131/181)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90.2% | 69% | GPT-4.1 |
| GPQA | 66.3% | 30.4% | GPT-4.1 |
| MMLU-Pro | Coming soon | 47.4% | Coming soon |
| MMMLU | Coming soon | 55.4% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 61.5 (#14/17)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 72.7% | Coming soon | Coming soon |
| MGSM | Coming soon | 47.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 50.3 (#83/128)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 87.4% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 27 (Unranked · 1 rankable row)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | GPT-4.1 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.965% | Coming soon | Coming soon |
| GSM8K | Coming soon | 86.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-4.1 and Phi-3.5-mini?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [GPT-4.1 vs GPT-4.1 mini](/compare/gpt-4-1-vs-gpt-4-1-mini)
- [Phi-3.5-mini vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-phi-3-5-mini)
- [GPT-4.1 vs GPT-4.1 nano](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [Phi-3.5-mini vs GPT-4.1 nano](/compare/gpt-4-1-nano-vs-phi-3-5-mini)

## Explore More

- [GPT-4.1 profile](/models/gpt-4-1)
- [Phi-3.5-mini profile](/models/phi-3-5-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)