Data points: 56
The readout for DeepSeek Reasoner and GPT-5.2, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 0 to 6.
Evidence depth
56 data points
Includes 0 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 9 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek Reasoner vs GPT-5.2deepseek-reasoner-vs-gpt-5-2 | Model A DeepSeek Reasoner | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 6 wins |
| Where it leads | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage, Recent tests |
| 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 Reasoner | GPT-5.2 |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek Reasoner | 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 Reasoner | GPT-5.2 |
|---|---|---|
N1N15 tests | DeepSeek Reasoner 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 Reasoner speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data |
Yun API5 tests | DeepSeek Reasoner speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 32 tok/s / 1965ms input / output No data |
ZenMux5 tests | DeepSeek Reasoner speed / latency 30 tok/s / 7017ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
小水管 API5 tests | DeepSeek Reasoner speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 71 tok/s / 2893ms input / output No data |
DeepSeek Reasoner deepseek-reasoner-search speed / latency No data input / output $1.03/M / $1.03/M | GPT-5.2 gpt-5.2-medium speed / latency No data input / output $0.024/M / $0.192/M | |
DeepSeek Reasoner deepseek-reasoner 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 | |
DeepSeek Reasoner deepseek-reasoner speed / latency No data input / output $0.050/M / $0.100/M | GPT-5.2 gpt-5.2-2025-12-11 speed / latency No data input / output $0.623/M / $4.99/M | |
DeepSeek Reasoner deepseek-reasoner speed / latency No data input / output $0.164/M / $0.658/M | GPT-5.2 gpt-5.2-xhigh speed / latency No data input / output $0.072/M / $0.575/M |
This report only uses LMSpeed data for DeepSeek Reasoner and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek Reasoner | GPT-5.2 |
|---|---|---|
| When to choose each model | DeepSeek Reasoner DeepSeek Reasoner does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.2 leads across 56 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek Reasoner 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.
