GPT-4.1 mini vs GPT-4o
| Spec | GPT-4.1 mini | GPT-4o |
|---|---|---|
| Respan Index | 15.6 (#147) | 15.2 (#149) |
| Blended price per 1M | $0.7 | $4.38 |
| Context window | 1.0M | 128K |
| Input / output per 1M | $0.4 / $1.6 | $2.5 / $10 |
| Max output | 33K | 16K |
| Input | text, vision | text, vision |
| Released | 2025-04-14 | 2024-05-13 |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | GPT-4.1 mini | GPT-4o |
|---|---|---|
| Coding | 4.4 GPT-4.1 mini | 2.3 GPT-4o |
| Agents | 7.8* GPT-4.1 mini | 8.6 GPT-4o |
| Reasoning | 19.0 GPT-4.1 mini | 16.7 GPT-4o |
| Knowledge & language | 12.6 GPT-4.1 mini | 25.8 GPT-4o |
| Human preference | 43.5 GPT-4.1 mini | 38.1 GPT-4o |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
GPT-4.1 mini leads on 9 of the 11 benchmarks both report. Higher is better. Each score links to where it was published.
| Benchmark | GPT-4.1 mini | GPT-4o |
|---|---|---|
| Chess Puzzles (Epoch AI) | 1% | 6% |
| LMArena Vision (LMArena) | 1201 | 1162 |
| LMArena Elo | 1383 | 1346 |
| FrontierMath Tiers 1-3 v2 (Epoch AI) | 6.7% | 0.4% |
| GPQA Diamond | 65% | 46% |
| MATH Level 5 (Epoch AI) | 87.3% | 53.3% |
| OTIS Mock AIME 2024-2025 (Epoch AI) | 44.7% | 6.4% |
| SimpleQA Verified | 12.7% | 26% |
| WeirdML (Håvard Tveit Ihle) | 37.6% | 25.1% |
| AIME 2024 | 49.6% | 13.1% |
| MMLU | 87.5% | 85.7% |
FAQ
Is GPT-4.1 mini better than GPT-4o?
GPT-4.1 mini scores 15.6 on the Respan Index (#147), ahead of GPT-4o at 15.2 (#149). GPT-4.1 mini leads on 9 of the 11 benchmarks both report.
Which is cheaper, GPT-4.1 mini or GPT-4o?
GPT-4.1 mini lists at $0.4 input and $1.6 output per 1M tokens; GPT-4o at $2.5 and $10. GPT-4.1 mini is 6.3x cheaper per token at list price.
Which has the larger context window?
GPT-4.1 mini accepts 1.0M tokens and GPT-4o 128K tokens.