Data points: 65
Model compare
The readout for GPT-5 and GPT-5.2 Pro, before the detailed comparison sheet.
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5
GPT-5 has the higher weighted result; Model A / B score 100 to 0.
Evidence depth
65 data points
Includes 1 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5
The charts below split 7 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 and GPT-5.2 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5 | GPT-5.2 Pro |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 100.0 pts | 0.0 pts |
| Benchmark category leads | 1 categories | 0 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 400K tokens | 400K tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input TextImageFile Output Text | Input |
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 | GPT-5.2 Pro |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Aug 2025 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-09-30 | No data |
| OpenRouter ID | openai/gpt-5 | openai/gpt-5.2-pro |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5 and GPT-5.2 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5
GPT-5 is stronger in benchmark categories (BenchLM overall score) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
GPT-5.2 Pro
GPT-5.2 Pro does not clearly lead in the benchmark or operational dimensions shared by both models.
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
55
Avg. score
GPT-5.2 Pro
-
GPT-5
GPT-5
GPT-5
GPT-5
GPT-5
GPT-5
GPT-5
GPT-5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5
winner71.0
Rank #29/127 · confidence 1 · eval date 2025-08-07
GPT-5.2 Pro
18.0
Rank #112/127 · confidence 1 · eval date 2025-12-11
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5 | GPT-5.2 Pro |
|---|---|---|
| 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 | GPT-5.2 Pro |
|---|---|---|
20 tests | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data | GPT-5.2 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5 speed / latency 102 tok/s / 948ms input / output No data | GPT-5.2 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5 speed / latency 58 tok/s / 17419ms input / output No data | GPT-5.2 Pro speed / latency N/A / N/A input / output No data |
0 tests | GPT-5 speed / latency N/A / N/A input / output No data | GPT-5.2 Pro speed / latency N/A / N/A input / output No data |
0 tests | GPT-5 speed / latency N/A / N/A input / output No data | GPT-5.2 Pro speed / latency N/A / N/A input / output No data |
GPT-5 gpt-5 speed / latency No data input / output $0/request | GPT-5.2 Pro gpt-5.2-pro-2025-12-11 speed / latency No data input / output $0/request |
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
