Data points: 82
The readout for DeepSeek V3.1 Terminus and GPT-5.2, before the detailed comparison sheet.
Decision read
Tie
Tie currently has the stronger profile, with verified wins split 3 to 3.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Tie
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek V3.1 Terminus vs GPT-5.2deepseek-v3-1-terminus-vs-gpt-5-2 | Model A DeepSeek V3.1 Terminus | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Tie | Tie |
| Verified metric wins | 3 wins | 3 wins |
| Where it leads | Average speed, First-token latency, Free providers | Cheapest input price, Provider coverage, Recent tests |
| Model metadata | DeepSeek V3.1 Terminus exposes 163.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | DeepSeek | OpenAI |
| Context window | 163.8K tokens | 128K tokens |
| Max output | 32.8K tokens | 16.4K tokens |
| Released | Sep 2025 | Dec 2025 |
| Modalities | Input Text Output Text | Input FileImageText Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | GPT |
| Knowledge cutoff | 2025-03-31 | No data |
| OpenRouter ID | deepseek/deepseek-v3.1-terminus | 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 Terminus | GPT-5.2 |
|---|---|---|
| LiveCodeBench | 52.9%#53 | 88.9%#4 |
| MMLU-Pro | 83.6%#24 | 87.4%#6 |
| GPQA | 75.1%#68 | 90.3%#9 |
| HLE | 8.4%#70 | 35.4%#9 |
| SciCode | 32.1%#85 | 52.1%#9 |
| Input price | $0.270/M#13 | $1.75/M#35 |
| Output price | $1.00/M#17 | $14.00/M#43 |
| Blended price | $0.453/M#22 | $4.81/M#62 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V3.1 Terminus | 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 Terminus | GPT-5.2 |
|---|---|---|
星见雅 API20 tests | DeepSeek V3.1 Terminus speed / latency 23 tok/s / 1008ms input / output No data | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data |
ChatGTP5 tests | DeepSeek V3.1 Terminus speed / latency 45 tok/s / 2125ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
Rnglg2 API5 tests | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
WONG公益站5 tests | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 64 tok/s / 2953ms input / output No data |
WSocket AI5 tests | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 54 tok/s / 1449ms input / output No data |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus(次模型) speed / latency No data input / output $0.100/M / $0.100/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.010/M / $0.010/M | |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus 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 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.018/M / $0.068/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.120/M / $0.959/M | |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.020/M / $0.040/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.020/M / $0.160/M | |
DeepSeek V3.1 Terminus siliconflow/deepseek-v3.1-terminus speed / latency No data input / output $0.050/M / $0.050/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $5.00/M / $40.00/M |
This report only uses LMSpeed data for DeepSeek V3.1 Terminus and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V3.1 Terminus | GPT-5.2 |
|---|---|---|
| When to choose each model | DeepSeek V3.1 Terminus DeepSeek V3.1 Terminus is stronger when you prioritize Average speed, First-token latency, Free providers. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Provider coverage, Recent tests. |
TL;DR: Tie leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V3.1 Terminus 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.
