# GPT-4.1 nano vs GPT-4o

> Side-by-side benchmark comparison for GPT-4.1 nano and GPT-4o across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-1-nano-vs-gpt-4o
- Last updated: September 29, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-4.1 nano and GPT-4o share only 1 sourced benchmark row.

## Summary

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

## Model Snapshot

| Property | GPT-4.1 nano | GPT-4o |
|----------|----------|----------|
| Creator | OpenAI | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Independent public score (not head-to-head) | 24.89 | 30.74 |
| Benchmarks Covered | 4 | 1 |
| Pricing (input/output) | $0.10 / $0.40 | $2.50 / $10.00 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 14.8 (Estimated · #137/143)
- GPT-4o public-lane score: Coming soon

### Reasoning

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 36.1 (Unranked · 2 rankable rows)
- GPT-4o public-lane score: 56.1 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 26.4 (Unranked · 1 rankable row)
- GPT-4o public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 25.2 (Supported · #162/169)
- GPT-4o public-lane score: 31.7 (Estimated · #133/169)

| Benchmark | GPT-4.1 nano | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 80.1% | Coming soon | Coming soon |
| GPQA | 50.3% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 34.6 (#109/124)
- GPT-4o public-lane score: 37.6 (#106/124)

| Benchmark | GPT-4.1 nano | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 83.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-4.1 nano public-lane score: 25.4 (Unranked · 1 rankable row)
- GPT-4o public-lane score: 25.1 (Unranked · 1 rankable row)

| Benchmark | GPT-4.1 nano | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 1.034% | 0.345% | GPT-4.1 nano |

## FAQ

### Is there enough evidence to pick between GPT-4.1 nano and GPT-4o?

Not yet. The models share only 1 sourced benchmark row, 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 nano vs GPT-4.1](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [GPT-4o vs GPT-4.1](/compare/gpt-4-1-vs-gpt-4o)
- [GPT-4.1 nano vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-gpt-4-1-nano)
- [GPT-4o vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-gpt-4o)

## Explore More

- [GPT-4.1 nano profile](/models/gpt-4-1-nano)
- [GPT-4o profile](/models/gpt-4o)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)