Data points: 81
Model compare
The readout for GPT-5.2 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 42.7 to 57.3.
Evidence depth
81 data points
Includes 8 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with O4 Mini
The charts below split 14 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-5.2 and O4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.2 | O4 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 42.7 pts | 57.3 pts |
| Benchmark category leads | 1 categories | 2 categories |
| Operational advantages | Cheapest input price, First-token latency, Free providers, Provider coverage | Average speed |
| Context window | 400K tokens | 200K tokens |
| Max output | 128K tokens | 100K tokens |
| Modalities | Input FileImageText Output Text | Input ImageTextFile Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
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-5.2 | O4 Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Dec 2025 | Apr 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | No data | 2024-06-30 |
| OpenRouter ID | openai/gpt-5.2 | openai/o4-mini |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.2 and O4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Reasoning) and operational dimensions (Cheapest input price, First-token latency, Free providers, Provider coverage).
O4 Mini
O4 Mini is stronger in benchmark categories (Coding, Math) and operational dimensions (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-5.2
52.8
Avg. score
O4 Mini
59.1
GPT-5.2
O4 Mini leads by 3.1
GPT-5.2 leads by 1.0
GPT-5.2
O4 Mini leads by 8.2
No data
GPT-5.2
GPT-5.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.2
$14.00/M
Rank #133/162 · confidence 4
O4 Mini
winner$4.40/M
Rank #97/162 · confidence 4
GPT-5.2
$4.81/M
Rank #132/162 · confidence 4
O4 Mini
winner$1.93/M
Rank #98/162 · confidence 4
GPT-5.2
$1.75/M
Rank #120/162 · confidence 4
O4 Mini
winner$1.10/M
Rank #102/162 · confidence 4
GPT-5.2
81.4%
Rank #54/125 · confidence 4
O4 Mini
winner83.2%
Rank #40/125 · confidence 4
GPT-5.2
7.3%
Rank #109/187 · confidence 4
O4 Mini
winner17.5%
Rank #64/187 · confidence 4
GPT-5.2
71.2%
Rank #110/188 · confidence 4
O4 Mini
winner78.4%
Rank #81/188 · confidence 4
GPT-5.2
66.9%
Rank #36/115 · confidence 4
O4 Mini
winner85.9%
Rank #6/115 · confidence 4
GPT-5.2
40.4%
Rank #64/185 · confidence 4
O4 Mini
winner46.5%
Rank #30/185 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.2 | 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-5.2 | O4 Mini |
|---|---|---|
智增增API30 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | O4 Mini speed / latency 93 tok/s / 7030ms input / output No data |
N1N15 tests | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
BUZZ5 tests | GPT-5.2 speed / latency 64 tok/s / 3553ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
Yun API5 tests | GPT-5.2 speed / latency 32 tok/s / 1965ms input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
42公益站0 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | O4 Mini speed / latency N/A / N/A input / output No data |
GPT-5.2 gpt-5.2 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%.
