Data points: 120
Model compare
The readout for GPT-4o 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 26 to 74.
Evidence depth
120 data points
Includes 27 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with O3 Mini
The charts below split 33 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 and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4o | O3 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 26.0 pts | 74.0 pts |
| Benchmark category leads | 1 categories | 7 categories |
| Operational advantages | Average speed, First-token latency, Free providers, Provider coverage | Cheapest input price |
| 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 | O3 Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Nov 2024 | Feb 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-10-31 | 2023-10-31 |
| OpenRouter ID | openai/gpt-4o | openai/o3-mini |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4o and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4o
GPT-4o is stronger in benchmark categories (Coding) and operational dimensions (Average speed, First-token latency, Free providers, Provider coverage).
O3 Mini
O3 Mini is stronger in benchmark categories (Agents, Reasoning, Knowledge, Math, Multilingual) and operational dimensions (Cheapest input price).
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
44
Avg. score
O3 Mini
49.3
O3 Mini leads by 0.8
GPT-4o leads by 2.7
O3 Mini leads by 9.5
O3 Mini leads by 2.4
O3 Mini leads by 16.5
O3 Mini leads by 0.6
O3 Mini leads by 1.3
O3 Mini leads by 14.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4o
41.0
Rank #86/127 · confidence 1 · eval date 2024-05-13
O3 Mini
winner52.0
Rank #68/127 · confidence 1 · eval date 2025-01-31
GPT-4o
winner0.49 s
Rank #8/139 · confidence 4
O3 Mini
7.10 s
Rank #66/139 · confidence 4
GPT-4o
winner0.49 s
Rank #12/139 · confidence 4
O3 Mini
7.10 s
Rank #111/139 · confidence 4
GPT-4o
194.4 tok/s
Rank #21/139 · confidence 4
O3 Mini
winner214.7 tok/s
Rank #15/139 · confidence 4
GPT-4o
$10.00/M
Rank #122/163 · confidence 4
O3 Mini
winner$4.40/M
Rank #99/163 · confidence 4
GPT-4o
$4.38/M
Rank #129/163 · confidence 4
O3 Mini
winner$1.93/M
Rank #100/163 · confidence 4
GPT-4o
$2.50/M
Rank #133/163 · confidence 4
O3 Mini
winner$1.10/M
Rank #104/163 · confidence 4
GPT-4o
44.4
Rank #46/70 · confidence 1 · eval date 2024-05-13
O3 Mini
winner61.4
Rank #27/70 · confidence 1 · eval date 2025-01-31
GPT-4o
74.8%
Rank #90/125 · confidence 4
O3 Mini
winner79.1%
Rank #69/125 · confidence 4
GPT-4o
54.3%
Rank #155/187 · confidence 4
O3 Mini
winner74.8%
Rank #96/187 · confidence 4
GPT-4o
3.3%
Rank #179/186 · confidence 4
O3 Mini
winner8.7%
Rank #97/186 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
O3 Mini
winner71.7%
Rank #27/115 · confidence 4
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
O3 Mini
winner39.9
Rank #59/96 · confidence 1 · eval date 2025-01-31
GPT-4o
35.0
Rank #80/100 · confidence 1 · eval date 2024-05-13
O3 Mini
winner49.4
Rank #69/100 · confidence 1 · eval date 2025-01-31
GPT-4o
33.3%
Rank #119/184 · confidence 4
O3 Mini
winner39.9%
Rank #69/184 · confidence 4
GPT-4o
winner8.3
Rank #75/85 · confidence 1 · eval date 2024-05-13
O3 Mini
6.8
Rank #77/85 · confidence 1 · eval date 2025-01-31
GPT-4o
75.9%
Rank #55/72 · confidence 4
O3 Mini
winner97.3%
Rank #11/72 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
O3 Mini
winner77.0%
Rank #14/68 · confidence 4
GPT-4o
33.2
Rank #80/92 · confidence 1 · eval date 2024-05-13
O3 Mini
winner55.2
Rank #56/92 · confidence 1 · eval date 2025-01-31
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
O3 Mini
winner74.8
Rank #71/96 · confidence 1 · eval date 2025-01-31
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
O3 Mini
winner8.7
Rank #71/96 · confidence 1 · eval date 2025-01-31
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
O3 Mini
winner19.0
Rank #77/99 · confidence 1 · eval date 2025-01-31
GPT-4o
42.0
Rank #41/62 · confidence 1 · eval date 2024-05-13
O3 Mini
winner44.8
Rank #40/62 · confidence 1 · eval date 2025-01-31
GPT-4o
62.1
Rank #45/81 · confidence 1 · eval date 2024-05-13
O3 Mini
winner65.0
Rank #36/81 · confidence 1 · eval date 2025-01-31
GPT-4o
59.9
Rank #53/75 · confidence 1 · eval date 2024-05-13
O3 Mini
winner77.2
Rank #24/75 · confidence 1 · eval date 2025-01-31
GPT-4o
36.9
Rank #70/95 · confidence 1 · eval date 2024-05-13
O3 Mini
winner59.3
Rank #41/95 · confidence 1 · eval date 2025-01-31
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
O3 Mini
winner28.7
Rank #74/84 · 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 | 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 | O3 Mini |
|---|---|---|
30 tests | GPT-4o speed / latency 135 tok/s / 1427ms input / output No data | O3 Mini speed / latency 66 tok/s / 6491ms input / output No data |
20 tests | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
6 tests | GPT-4o 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 speed / latency 48 tok/s / 13138ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
5 tests | GPT-4o speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 117 tok/s / 4809ms input / output No data |
GPT-4o gpt-4o-2024-11-20 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 |
|---|
