Data points: 77
The readout for GPT-5.2 and o3 Pro, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
77 data points
Includes 7 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 16 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.2 vs o3 Progpt-5-2-vs-o3-pro | Model A GPT-5.2 | Model B o3 Pro |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 0 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5.2 | o3 Pro |
|---|---|---|
| GPQA | 90.3%#9 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.2 | o3 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-5.2 | o3 Pro |
|---|---|---|
15 tests | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data | o3 Pro |
This report only uses LMSpeed data for GPT-5.2 and o3 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.2 | o3 Pro |
|---|---|---|
| When to choose each model | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | o3 Pro o3 Pro does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: GPT-5.2 leads across 77 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.2 vs o3 Pro into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. | o3 Pro exposes 200K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Context window | 128K tokens | 200K tokens |
| Max output | 16.4K tokens | 100K tokens |
| Released | Dec 2025 | Jun 2025 |
| Modalities | Input FileImageText Output Text | Input TextFileImage Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | No data | 2024-06-30 |
| OpenRouter ID | openai/gpt-5.2-chat | openai/o3-pro |
| References | No data | No data |
| Input price | $1.75/M#35 | $20.00/M#45 |
|---|
| Output price | $14.00/M#43 | $80.00/M#53 |
|---|
| Blended price | $4.81/M#62 | $35.00/M#74 |
|---|
| Output speed | 72.8 tok/s#71 | 20.3 tok/s#112 |
|---|
| Time to first answer token | 115.69 s#109 | 83.81 s#105 |
|---|
| Time to first token | 115.69 s#108 | 83.81 s#107 |
|---|
speed / latency
N/A / N/A
input / output
No data
Yun API5 tests | GPT-5.2 gpt-5.2 speed / latency 32 tok/s / 1965ms input / output $0.0027/M / $0.0027/M | o3 Pro o3-pro-2025-06-10 speed / latency N/A / N/A input / output $2.74/M / $10.96/M |
|---|
42公益站0 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | o3 Pro speed / latency N/A / N/A input / output No data |
|---|
AASS API0 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | o3 Pro speed / latency N/A / N/A input / output No data |
|---|
AIGCBAR0 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | o3 Pro speed / latency N/A / N/A input / output No data |
|---|
GPT-5.2 gpt-5.2-all speed / latency No data input / output $0.0068/M / $0.0068/M | o3 Pro o3-pro-2025-06-10 speed / latency No data input / output $2.74/M / $10.96/M |
GPT-5.2 gpt-5.2-all speed / latency No data input / output $0.0068/M / $0.0068/M | o3 Pro o3-pro-2025-06-10 speed / latency No data input / output $2.74/M / $10.96/M |
GPT-5.2 gpt-5.2-all speed / latency No data input / output $0.010/M / $0.010/M | o3 Pro o3-pro-2025-06-10 speed / latency No data input / output $4.11/M / $16.44/M |
GPT-5.2 gpt-5.2 speed / latency No data input / output $0.014/M / $0.014/M | o3 Pro o3-pro-async speed / latency No data input / output $10.27/M / $41.10/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
