Data points: 100
Model compare
The readout for GPT-4o Mini and O3 Mini, before the detailed comparison sheet.
Weighted outcome: O3 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
O3 Mini
O3 Mini has the higher weighted result; Model A / B score 25.3 to 74.7.
Evidence depth
100 data points
Includes 17 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with O3 Mini
The charts below split 23 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-4o Mini and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4o Mini | O3 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 25.3 pts | 74.7 pts |
| Benchmark category leads | 1 categories | 5 categories |
| Operational advantages | Average speed, First-token latency, Provider coverage | Cheapest input price, Free providers |
| Context window | 128K tokens | 200K tokens |
| Max output | 16.4K tokens | 100K tokens |
| Modalities | Input TextImageFile 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-4o Mini | O3 Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Jul 2024 | Feb 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-10-31 | 2023-10-31 |
| OpenRouter ID | openai/gpt-4o-mini | openai/o3-mini |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4o Mini and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4o Mini
GPT-4o Mini is stronger in benchmark categories (Knowledge) and operational dimensions (Average speed, First-token latency, Provider coverage).
O3 Mini
O3 Mini is stronger in benchmark categories (Agents, Coding, Reasoning, Math, Instruction following) and operational dimensions (Cheapest input price, Free providers).
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-4o Mini
42
Avg. score
O3 Mini
48.8
O3 Mini leads by 7.4
O3 Mini leads by 2.9
O3 Mini leads by 9.6
GPT-4o Mini leads by 6.8
O3 Mini leads by 12.6
No data
No data
O3 Mini leads by 15.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4o Mini
66.0 tok/s
Rank #87/139 · confidence 4
O3 Mini
winner218.3 tok/s
Rank #13/139 · confidence 4
GPT-4o Mini
winner0.61 s
Rank #16/139 · confidence 4
O3 Mini
5.41 s
Rank #63/139 · confidence 4
GPT-4o Mini
winner0.61 s
Rank #23/139 · confidence 4
O3 Mini
5.41 s
Rank #110/139 · confidence 4
GPT-4o Mini
winner$0.262/M
Rank #21/163 · confidence 4
O3 Mini
$1.93/M
Rank #100/163 · confidence 4
GPT-4o Mini
winner$0.150/M
Rank #21/163 · confidence 4
O3 Mini
$1.10/M
Rank #104/163 · confidence 4
GPT-4o Mini
winner$0.600/M
Rank #23/163 · confidence 4
O3 Mini
$4.40/M
Rank #99/163 · confidence 4
GPT-4o Mini
64.8%
Rank #112/125 · confidence 4
O3 Mini
winner79.1%
Rank #69/125 · confidence 4
GPT-4o Mini
42.6%
Rank #172/187 · confidence 4
O3 Mini
winner74.8%
Rank #96/187 · confidence 4
GPT-4o Mini
4.0%
Rank #161/186 · confidence 4
O3 Mini
winner8.7%
Rank #97/186 · confidence 4
GPT-4o Mini
23.4%
Rank #101/115 · confidence 4
O3 Mini
winner71.7%
Rank #27/115 · confidence 4
GPT-4o Mini
22.9
Rank #94/96 · confidence 1 · eval date 2024-07-18
O3 Mini
winner39.9
Rank #59/96 · confidence 1 · eval date 2025-01-31
GPT-4o Mini
22.9%
Rank #165/184 · confidence 4
O3 Mini
winner39.9%
Rank #69/184 · confidence 4
GPT-4o Mini
78.9%
Rank #51/72 · confidence 4
O3 Mini
winner97.3%
Rank #11/72 · confidence 4
GPT-4o Mini
11.7%
Rank #55/68 · confidence 4
O3 Mini
winner77.0%
Rank #14/68 · confidence 4
GPT-4o Mini
42.6
Rank #95/96 · confidence 1 · eval date 2024-07-18
O3 Mini
winner74.8
Rank #71/96 · confidence 1 · eval date 2025-01-31
GPT-4o Mini
4.0
Rank #89/96 · confidence 1 · eval date 2024-07-18
O3 Mini
winner8.7
Rank #71/96 · confidence 1 · eval date 2025-01-31
GPT-4o Mini
6.9
Rank #97/99 · confidence 1 · eval date 2024-07-18
O3 Mini
winner19.0
Rank #77/99 · confidence 1 · eval date 2025-01-31
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4o Mini | O3 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-4o Mini | O3 Mini |
|---|---|---|
30 tests | GPT-4o Mini speed / latency 78 tok/s / 1046ms input / output No data | O3 Mini speed / latency 66 tok/s / 6491ms input / output No data |
20 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 42 tok/s / 6239ms input / output No data |
10 tests | GPT-4o Mini speed / latency 84 tok/s / 5980ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
6 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 44 tok/s / 17418ms input / output No data |
5 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 117 tok/s / 4809ms input / output No data |
GPT-4o Mini gpt-4o-mini speed / latency No data input / output $0/request | O3 Mini o3-mini-high speed / latency No data input / output $1.47/request |
Weighted outcome: O3 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search | Text inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
