Data points: 74
The readout for DeepSeek V3.1 and DeepSeek V3.1 Terminus, before the detailed comparison sheet.
Decision read
DeepSeek V3.1
DeepSeek V3.1 currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
74 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 DeepSeek V3.1 Terminusdeepseek-v3-1-vs-deepseek-v3-1-terminus | Model A DeepSeek V3.1 | Model B DeepSeek V3.1 Terminus |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | DeepSeek V3.1 | DeepSeek V3.1 Terminus |
|---|---|---|
| Input price | $0.555/M#20 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V3.1 | DeepSeek V3.1 Terminus |
|---|---|---|
| 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 | DeepSeek V3.1 Terminus |
|---|---|---|
31 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 DeepSeek V3.1 Terminus: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V3.1 | DeepSeek V3.1 Terminus |
|---|---|---|
| When to choose each model | DeepSeek V3.1 DeepSeek V3.1 is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests. | DeepSeek V3.1 Terminus DeepSeek V3.1 Terminus is stronger when you prioritize First-token latency. |
TL;DR: DeepSeek V3.1 leads across 74 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V3.1 vs DeepSeek V3.1 Terminus into nearby model comparisons with enough verified LMSpeed data.
| First-token latency |
| Model metadata | No OpenRouter metadata is available yet for this model. | DeepSeek V3.1 Terminus exposes 163.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
|---|---|---|
| Developer | DeepSeek | DeepSeek |
| Context window | No data | 163.8K tokens |
| Max output | No data | 32.8K tokens |
| Released | No data | Sep 2025 |
| Modalities | No data | Input Text Output Text |
| Features | None listed | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | DeepSeek |
| Knowledge cutoff | No data | 2025-03-31 |
| OpenRouter ID | No data | deepseek/deepseek-v3.1-terminus |
| References | No data | No data |
| Output price | $1.67/M#22 | $1.00/M#17 |
|---|
| Blended price | $0.834/M#34 | $0.453/M#22 |
|---|
| MMLU-Pro | 83.3%#26 | 83.6%#24 |
|---|
| LiveCodeBench | 57.7%#45 | 52.9%#53 |
|---|
| GPQA | 73.5%#73 | 75.1%#68 |
|---|
| SciCode | 36.7%#68 | 32.1%#85 |
|---|
| HLE | 6.3%#80 | 8.4%#70 |
|---|
DeepSeek V3.1 Terminus
speed / latency
N/A / N/A
input / output
No data
NVIDIA NIM30 tests | DeepSeek V3.1 speed / latency 41 tok/s / 2356ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
|---|
6345ywz API25 tests | DeepSeek V3.1 speed / latency 267 tok/s / 845ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
|---|
火山引擎 Ark20 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | DeepSeek V3.1 Terminus speed / latency 57 tok/s / 1362ms input / output No data |
|---|
ChatGTP5 tests | DeepSeek V3.1 speed / latency N/A / N/A input / output No data | DeepSeek V3.1 Terminus speed / latency 45 tok/s / 2125ms input / output No data |
|---|
DeepSeek V3.1 deepseek-v3.1 speed / latency No data input / output $0.560/M / $1.68/M | DeepSeek V3.1 Terminus deepseek-ai/deepseek-v3.1-terminus speed / latency No data input / output $0/M / $0/M |
DeepSeek V3.1 linuxdo/deepseek-v3.1 speed / latency No data input / output $0/M / $0/M | DeepSeek V3.1 Terminus deepseek-ai/deepseek-v3.1-terminus speed / latency No data input / output $0/M / $0/M |
DeepSeek V3.1 deepseek-ai/deepseek-v3.1 speed / latency No data input / output $0/M / $0/M | DeepSeek V3.1 Terminus deepseek-ai/deepseek-v3.1-terminus speed / latency No data input / output $0/M / $0/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
