Data points: 86
Model compare
The readout for GPT-4o and O4 Mini, before the detailed comparison sheet.
Weighted outcome: O4 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
O4 Mini
O4 Mini has the higher weighted result; Model A / B score 12 to 88.
Evidence depth
86 data points
Includes 10 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with O4 Mini
The charts below split 16 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 O4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4o | O4 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 12.0 pts | 88.0 pts |
| Benchmark category leads | 0 categories | 3 categories |
| Operational advantages | First-token latency, Free providers, Provider coverage | Cheapest input price, Average speed |
| 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 | O4 Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Nov 2024 | Apr 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-10-31 | 2024-06-30 |
| OpenRouter ID | openai/gpt-4o | openai/o4-mini |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4o and O4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4o
GPT-4o has these operational advantages: First-token latency, Free providers, Provider coverage.
O4 Mini
O4 Mini is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed).
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
43.2
Avg. score
O4 Mini
59.1
GPT-4o
O4 Mini leads by 13.4
O4 Mini leads by 13.1
GPT-4o
O4 Mini leads by 21.9
No data
No data
GPT-4o
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
O4 Mini
winner$4.40/M
Rank #97/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
O4 Mini
winner$1.93/M
Rank #98/162 · confidence 4
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
O4 Mini
winner$1.10/M
Rank #102/162 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
O4 Mini
winner83.2%
Rank #40/125 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
O4 Mini
winner17.5%
Rank #64/187 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
O4 Mini
winner78.4%
Rank #81/188 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
O4 Mini
winner85.9%
Rank #6/115 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
O4 Mini
winner46.5%
Rank #30/185 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
O4 Mini
winner94.0%
Rank #1/68 · confidence 4
GPT-4o
75.9%
Rank #56/74 · confidence 4
O4 Mini
winner98.9%
Rank #2/74 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4o | O4 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 | O4 Mini |
|---|---|---|
30 tests | GPT-4o speed / latency N/A / N/A input / output No data | O4 Mini speed / latency 93 tok/s / 7030ms input / output No data |
20 tests | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
10 tests | GPT-4o speed / latency 31 tok/s / 21979ms input / output No data | O4 Mini speed / latency 99 tok/s / 14357ms input / output No data |
5 tests | GPT-4o speed / latency 101 tok/s / 492ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
5 tests | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
GPT-4o gpt-4o-2024-08-06 speed / latency No data input / output $0/request | O4 Mini o4-mini speed / latency No data input / output $0/request |
Weighted outcome: O4 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 inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
