Compare / head-to-head
GPT-4.1 nanovso3
o3 leads 3 of 3 shared benchmarks. GPT-4.1 nano is 20x cheaper per token. GPT-4.1 nano has the larger context window (1.0M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 3
o3 leads
Cheaper per token
GPT-4.1 nano
20x cheaper, input + output
Larger context
GPT-4.1 nano
1.0M tokens
Provider uptime (30d)
95.2941%
OpenAI
GPT-4.1 nano
OpenAI · released 2025-04-14
textvision
Quality
Benchmark matrix
3 shared · 3 only GPT-4.1 nano · 4 only o3| Benchmark | GPT-4.1 nano | o3 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 50.3% ↗ | 81.8% ↗epoch | -31.5 pt | o3 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 28.9% ↗epoch | 84.4% ↗epoch | -55.5 pt | o3 |
| SimpleQA Verified | 6% ↗epoch | 49.4% ↗epoch | -43.4 pt | o3 |
| Only GPT-4.1 nano reports · 3 | ||||
| MMLU | 80.1% ↗ | not reported | — | — |
| Aider Polyglot | 9.8% ↗ | not reported | — | — |
| AIME 2024 | 29.4% ↗ | not reported | — | — |
| Only o3 reports · 4 | ||||
| SWE-bench Verified | not reported | 69.1% ↗ | — | — |
| AIME 2025 | not reported | 89.2% ↗matharena ⚠ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 33.3% ↗epoch | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 62.3% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-4.1 nano minus o3 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | GPT-4.1 nano | o3 | Edge |
|---|---|---|---|
| Context window | 1.0M tokens | 200K tokens | GPT-4.1 nano |
| Max output | 33K tokens | 100K tokens | o3 |
| Input price / 1M | $0.1 ↗ | $2 ↗ | GPT-4.1 nano |
| Output price / 1M | $0.4 ↗ | $8 ↗ | GPT-4.1 nano |
| Cached input / 1M | $0.025 ↗ | $0.5 ↗ | GPT-4.1 nano |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.5 | $10 | GPT-4.1 nano |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-04-14 | 2025-04-16 | — |
| Cited benchmark scores | 7 | 7 | — |
Reliability
OpenAI status
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GPT-4.1 nano vs …
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o3 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
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