Data points: 72
The readout for DeepSeek V3.1 and GPT-5.2, before the detailed comparison sheet.
Decision read
DeepSeek V3.1
DeepSeek V3.1 currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
72 data points
Includes 8 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with DeepSeek V3.1
The charts below split 16 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek V3.1 vs GPT-5.2deepseek-v3-1-vs-gpt-5-2 | Model A DeepSeek V3.1 | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Average speed, First-token latency, Free providers, Recent tests | Cheapest input price, Provider coverage |
| Model metadata | No OpenRouter metadata is available yet for this model. | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | DeepSeek | OpenAI |
| Context window | No data | 128K tokens |
| Max output | No data | 16.4K tokens |
| Released | No data | Dec 2025 |
| Modalities | No data | Input FileImageText Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | openai/gpt-5.2-chat |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | DeepSeek V3.1 | GPT-5.2 |
|---|---|---|
| LiveCodeBench | 57.7%#45 | 88.9%#4 |
| MMLU-Pro | 83.3%#26 | 87.4%#6 |
| GPQA | 73.5%#73 | 90.3%#9 |
| HLE | 6.3%#80 | 35.4%#9 |
| SciCode | 36.7%#68 | 52.1%#9 |
| Input price | $0.555/M#20 | $1.75/M#35 |
| Output price | $1.67/M#22 | $14.00/M#43 |
| Blended price | $0.834/M#34 | $4.81/M#62 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V3.1 | GPT-5.2 |
|---|---|---|
| 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 | DeepSeek V3.1 | GPT-5.2 |
|---|---|---|
SkyAI31 tests | DeepSeek V3.1 speed / latency 68 tok/s / 3024ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
6345ywz API25 tests | DeepSeek V3.1 FAST/deepseek-v3.1 speed / latency 267 tok/s / 845ms input / output $0.137/M / $0.411/M | GPT-5.2 gpt-5.2 speed / latency N/A / N/A input / output $0.034/M / $0.274/M |
N1N15 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
星见雅 API15 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data |
ModelPool5 tests | DeepSeek V3.1 deepseek-v3.1-250821 speed / latency N/A / N/A input / output $0.049/M / $0.147/M | GPT-5.2 gpt-5.2-chat-latest speed / latency 64 tok/s / 5256ms input / output $0.150/M / $1.20/M |
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.0010/M / $0.0010/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.010/M / $0.010/M | |
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.010/M / $0.010/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $75.00/M / $600.00/M | |
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.038/M / $0.115/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.120/M / $0.959/M |
This report only uses LMSpeed data for DeepSeek V3.1 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V3.1 | GPT-5.2 |
|---|---|---|
| When to choose each model | DeepSeek V3.1 DeepSeek V3.1 is stronger when you prioritize Average speed, First-token latency, Free providers, Recent tests. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Provider coverage. |
TL;DR: DeepSeek V3.1 leads across 72 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V3.1 vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
