Data points: 73
The readout for DeepSeek V3.1 and GPT-5, 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
73 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with DeepSeek V3.1
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek V3.1 vs GPT-5deepseek-v3-1-vs-gpt-5 | Model A DeepSeek V3.1 | Model B GPT-5 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Average speed, First-token latency, Free providers, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | DeepSeek V3.1 | GPT-5 |
|---|---|---|
| MMLU-Pro | 83.3%#26 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V3.1 | 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 | GPT-5 |
|---|---|---|
36 tests | DeepSeek V3.1 speed / latency 68 tok/s / 3024ms input / output No data |
This report only uses LMSpeed data for DeepSeek V3.1 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V3.1 | GPT-5 |
|---|---|---|
| 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 GPT-5 is stronger when you prioritize Cheapest input price, Provider coverage. |
TL;DR: DeepSeek V3.1 leads across 73 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V3.1 vs GPT-5 into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Provider coverage |
| Model metadata | No OpenRouter metadata is available yet for this model. | GPT-5 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 | Aug 2025 |
| Modalities | No data | Input FileImageText Output Text |
| Features | None listed | Text inputImage inputFile inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | No data | openai/gpt-5-chat |
| References | No data | No data |
| LiveCodeBench | 57.7%#45 | 84.6%#11 |
|---|
| Input price | $0.555/M#20 | $1.25/M#30 |
|---|
| Output price | $1.67/M#22 | $10.00/M#41 |
|---|
| HLE | 6.3%#80 | 26.5%#24 |
|---|
| GPQA | 73.5%#73 | 85.4%#31 |
|---|
| SciCode | 36.7%#68 | 42.9%#31 |
|---|
| Blended price | $0.834/M#34 | $3.44/M#58 |
|---|
GPT-5
speed / latency
169 tok/s / 1894ms
input / output
No data
6345ywz API25 tests | DeepSeek V3.1 speed / latency 267 tok/s / 845ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
V-API20 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
|---|
EasyMore5 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
|---|
N1N5 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
|---|
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.0010/M / $0.0010/M | GPT-5 gpt-5 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 gpt-5 speed / latency No data input / output $1.35/M / $10.80/M |
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.038/M / $0.115/M | GPT-5 gpt-5 speed / latency No data input / output $0.086/M / $0.685/M |
DeepSeek V3.1 deepseek-v3.1-250821 speed / latency No data input / output $0.049/M / $0.147/M | GPT-5 gpt-5-chat speed / latency No data input / output $0.171/M / $1.37/M |
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.164/M / $0.493/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.
