Data points: 83
The readout for DeepSeek V3.1 Terminus and GPT-5, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
83 data points
Includes 8 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5
The charts below split 17 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek V3.1 Terminus vs GPT-5deepseek-v3-1-terminus-vs-gpt-5 | Model A DeepSeek V3.1 Terminus | Model B GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | First-token latency, Free providers |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | DeepSeek V3.1 Terminus | GPT-5 |
|---|---|---|
| MMLU-Pro | 83.6%#24 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V3.1 Terminus | GPT-5 |
|---|---|---|
| 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 |
|---|---|---|
10 tests | DeepSeek V3.1 Terminus speed / latency 23 tok/s / 1008ms input / output No data |
This report only uses LMSpeed data for DeepSeek V3.1 Terminus and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V3.1 Terminus | GPT-5 |
|---|---|---|
| When to choose each model | DeepSeek V3.1 Terminus DeepSeek V3.1 Terminus is stronger when you prioritize First-token latency, Free providers. | GPT-5 GPT-5 is stronger when you prioritize Cheapest input price, Average speed, Provider coverage, Recent tests. |
TL;DR: GPT-5 leads across 83 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V3.1 Terminus vs GPT-5 into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Average speed, 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 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 | Aug 2025 |
| Modalities | Input Text Output Text | Input FileImageText Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | GPT |
| Knowledge cutoff | 2025-03-31 | 2024-09-30 |
| OpenRouter ID | deepseek/deepseek-v3.1-terminus | openai/gpt-5-chat |
| References | No data | No data |
| LiveCodeBench | 52.9%#53 | 84.6%#11 |
|---|
| Input price | $0.270/M#13 | $1.25/M#30 |
|---|
| Output price | $1.00/M#17 | $10.00/M#41 |
|---|
| Blended price | $0.453/M#22 | $3.44/M#58 |
|---|
| HLE | 8.4%#70 | 26.5%#24 |
|---|
| GPQA | 75.1%#68 | 85.4%#31 |
|---|
| SciCode | 32.1%#85 | 42.9%#31 |
|---|
GPT-5
speed / latency
38 tok/s / 15844ms
input / output
No data
ChatGTP5 tests | DeepSeek V3.1 Terminus speed / latency 45 tok/s / 2125ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
EasyMore5 tests | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
|---|
SkyAI5 tests | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 169 tok/s / 1894ms input / output No data |
|---|
10dian-API0 tests | DeepSeek V3.1 Terminus deepseek-v3.1-terminus(次模型) speed / latency N/A / N/A input / output $0.100/M / $0.100/M | GPT-5 gpt-5 speed / latency N/A / N/A 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 gpt-5 speed / latency No data input / output $1.35/M / $10.80/M |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.018/M / $0.068/M | GPT-5 gpt-5 speed / latency No data input / output $0.086/M / $0.685/M |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.020/M / $0.040/M | GPT-5 gpt-5 speed / latency No data input / output $0.020/M / $0.160/M |
DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.164/M / $0.658/M | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0.051/M / $0.411/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
