Data points: 104
Model compare
The readout for GPT-4.1 Nano and GPT-4o Mini, before the detailed comparison sheet.
Weighted outcome: GPT-4o Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-4o Mini
GPT-4o Mini has the higher weighted result; Model A / B score 38.7 to 61.3.
Evidence depth
104 data points
Includes 19 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-4o Mini
The charts below split 26 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for GPT-4.1 Nano and GPT-4o Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4.1 Nano | GPT-4o Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 38.7 pts | 61.3 pts |
| Benchmark category leads | 2 categories | 4 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency | Free providers, Provider coverage |
| Context window | 1.0M tokens | 128K tokens |
| Max output | 32.8K tokens | 16.4K tokens |
| Modalities | Input ImageTextFile Output Text |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | GPT-4.1 Nano | GPT-4o Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Apr 2025 | Jul 2024 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-06-30 | 2023-10-31 |
| OpenRouter ID | openai/gpt-4.1-nano | openai/gpt-4o-mini |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4.1 Nano and GPT-4o Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4.1 Nano
GPT-4.1 Nano is stronger in benchmark categories (Agents, Coding) and operational dimensions (Cheapest input price, Average speed, First-token latency).
GPT-4o Mini
GPT-4o Mini is stronger in benchmark categories (Reasoning, Knowledge, Math, Instruction following) and operational dimensions (Free providers, Provider coverage).
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
GPT-4.1 Nano
37.9
Avg. score
GPT-4o Mini
41.8
GPT-4.1 Nano leads by 0.9
GPT-4.1 Nano leads by 3.4
GPT-4o Mini leads by 2.5
GPT-4o Mini leads by 20.5
GPT-4o Mini leads by 0.9
No data
No data
GPT-4o Mini leads by 3.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4.1 Nano
winner$0.100/M
Rank #7/162 · confidence 4
GPT-4o Mini
$0.150/M
Rank #21/162 · confidence 4
GPT-4.1 Nano
winner$0.175/M
Rank #11/162 · confidence 4
GPT-4o Mini
$0.262/M
Rank #21/162 · confidence 4
GPT-4.1 Nano
winner$0.400/M
Rank #12/162 · confidence 4
GPT-4o Mini
$0.600/M
Rank #23/162 · confidence 4
GPT-4.1 Nano
winner65.7%
Rank #111/125 · confidence 4
GPT-4o Mini
64.8%
Rank #112/125 · confidence 4
GPT-4.1 Nano
3.9%
Rank #165/187 · confidence 4
GPT-4o Mini
winner4.0%
Rank #162/187 · confidence 4
GPT-4.1 Nano
winner51.2%
Rank #164/188 · confidence 4
GPT-4o Mini
42.6%
Rank #173/188 · confidence 4
GPT-4.1 Nano
11.1
Rank #58/59 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
winner11.4
Rank #57/59 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner32.6%
Rank #84/115 · confidence 4
GPT-4o Mini
23.4%
Rank #101/115 · confidence 4
GPT-4.1 Nano
winner25.9
Rank #91/96 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
22.9
Rank #94/96 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner25.9%
Rank #156/185 · confidence 4
GPT-4o Mini
22.9%
Rank #166/185 · confidence 4
GPT-4.1 Nano
winner84.8%
Rank #43/74 · confidence 4
GPT-4o Mini
78.9%
Rank #52/74 · confidence 4
GPT-4.1 Nano
winner23.7%
Rank #45/68 · confidence 4
GPT-4o Mini
11.7%
Rank #55/68 · confidence 4
GPT-4.1 Nano
3.9
Rank #91/96 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
winner4.0
Rank #89/96 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner51.2
Rank #93/96 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
42.6
Rank #95/96 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner9.6
Rank #94/99 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
6.9
Rank #97/99 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
40.1
Rank #56/57 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
winner41.5
Rank #55/57 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner32.0
Rank #83/86 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
31.0
Rank #84/86 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
63.0
Rank #54/55 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
winner241.0
Rank #51/55 · confidence 1 · eval date 2024-07-18
GPT-4.1 Nano
winner1.2
Rank #53/55 · confidence 1 · eval date 2025-04-14
GPT-4o Mini
1.0
Rank #55/55 · confidence 1 · eval date 2024-07-18
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4.1 Nano | GPT-4o Mini |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-4.1 Nano | GPT-4o Mini |
|---|---|---|
75 tests | GPT-4.1 Nano speed / latency 127 tok/s / 2007ms input / output No data | GPT-4o Mini speed / latency N/A / N/A input / output No data |
25 tests | GPT-4.1 Nano speed / latency 162 tok/s / 1284ms input / output No data | GPT-4o Mini speed / latency N/A / N/A input / output No data |
10 tests | GPT-4.1 Nano speed / latency N/A / N/A input / output No data | GPT-4o Mini speed / latency 84 tok/s / 5980ms input / output No data |
5 tests | GPT-4.1 Nano speed / latency 222 tok/s / 800ms input / output No data | GPT-4o Mini speed / latency N/A / N/A input / output No data |
2 tests | GPT-4.1 Nano speed / latency N/A / N/A input / output No data | GPT-4o Mini speed / latency 83 tok/s / 1341ms input / output No data |
GPT-4.1 Nano gpt-4.1-nano-2025-04-14 speed / latency No data input / output $0/request | GPT-4o Mini gpt-4o-mini-2024-07-18 speed / latency No data input / output $0/request | |
GPT-4.1 Nano gpt-4.1-nano speed / latency No data input / output $0.0024/M/$0.0096/M | GPT-4o Mini gpt-4o-mini speed / latency No data input / output $0.103/M |
Weighted outcome: GPT-4o Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
