Data points: 71
The readout for GPT-5.2 and Grok-3, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 4 to 1.
Evidence depth
71 data points
Includes 8 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 15 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.2 vs Grok-3gpt-5-2-vs-grok-3 | Model A GPT-5.2 | Model B Grok-3 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, Provider coverage, Recent tests | First-token latency |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5.2 | Grok-3 |
|---|---|---|
| LiveCodeBench | 88.9%#4 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.2 | Grok-3 |
|---|---|---|
| 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 | Grok-3 |
|---|---|---|
25 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | Grok-3 |
This report only uses LMSpeed data for GPT-5.2 and Grok-3: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.2 | Grok-3 |
|---|---|---|
| When to choose each model | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Average speed, Provider coverage, Recent tests. | Grok-3 Grok-3 is stronger when you prioritize First-token latency. |
TL;DR: GPT-5.2 leads across 71 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.2 vs Grok-3 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. | No OpenRouter metadata is available yet for this model. |
|---|---|---|
| Developer | OpenAI | No data |
| Context window | 128K tokens | No data |
| Max output | 16.4K tokens | No data |
| Released | Dec 2025 | No data |
| Modalities | Input FileImageText Output Text | No data |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode | None listed |
| Parameters | No data | No data |
| Tokenizer | GPT | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.2-chat | No data |
| References | No data | No data |
| MMLU-Pro | 87.4%#6 | 79.9%#41 |
|---|
| GPQA | 90.3%#9 | 69.3%#80 |
|---|
| HLE | 35.4%#9 | 5.1%#86 |
|---|
| SciCode | 52.1%#9 | 36.8%#67 |
|---|
| Input price | $1.75/M#35 | $4.00/M#40 |
|---|
| Output price | $14.00/M#43 | $20.00/M#46 |
|---|
| Blended price | $4.81/M#62 | $8.00/M#67 |
|---|
speed / latency
39 tok/s / 2642ms
input / output
No data
N1N15 tests | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
|---|
星见雅 API15 tests | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
|---|
Undy API5 tests | GPT-5.2 speed / latency N/A / N/A input / output No data | Grok-3 speed / latency 19 tok/s / 4518ms input / output No data |
|---|
WSocket AI5 tests | GPT-5.2 speed / latency 54 tok/s / 1449ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
|---|
GPT-5.2 gpt-5.2-openai-compact speed / latency No data input / output $75.00/M / $600.00/M | Grok-3 grok-3 speed / latency No data input / output $0/M / $0/M |
GPT-5.2 gpt-5.2-chat speed / latency No data input / output $0.216/M / $1.73/M | Grok-3 grok-3 speed / latency No data input / output $0.0014/M / $0.0014/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
