Data points: 78
The readout for Claude Opus 4.6 and DeepSeek V3.1 Terminus, before the detailed comparison sheet.
Decision read
Tie
Tie currently has the stronger profile, with verified wins split 3 to 3.
Evidence depth
78 data points
Includes 6 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Tie
The charts below split 14 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.6 vs DeepSeek V3.1 Terminusclaude-opus-4-6-vs-deepseek-v3-1-terminus | Model A Claude Opus 4.6 | Model B DeepSeek V3.1 Terminus |
|---|---|---|
| Overall leader | Tie | Tie |
| Verified metric wins | 3 wins | 3 wins |
| Where it leads | Cheapest input price, Provider coverage, Recent tests | Average speed, First-token latency, Free providers |
| Model metadata | Claude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. | DeepSeek V3.1 Terminus exposes 163.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
| Developer | Anthropic | DeepSeek |
| Context window | 1M tokens | 163.8K tokens |
| Max output | 128K tokens | 32.8K tokens |
| Released | Apr 2026 | Sep 2025 |
| Modalities | Input TextImageFile Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Claude | DeepSeek |
| Knowledge cutoff | No data | 2025-03-31 |
| OpenRouter ID | anthropic/claude-opus-4.6-fast | deepseek/deepseek-v3.1-terminus |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.6 | DeepSeek V3.1 Terminus |
|---|---|---|
| Input price | $5.00/M#41 | $0.270/M#13 |
| Output price | $25.00/M#47 | $1.00/M#17 |
| SciCode | 45.7%#20 | 32.1%#85 |
| Blended price | $10.00/M#68 | $0.453/M#22 |
| GPQA | 84.0%#38 | 75.1%#68 |
| HLE | 18.6%#43 | 8.4%#70 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | 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 | Claude Opus 4.6 | DeepSeek V3.1 Terminus |
|---|---|---|
Rnglg2 API15 tests | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
6i2 API5 tests | Claude Opus 4.6 speed / latency 280 tok/s / 3242ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
EasyMore5 tests | Claude Opus 4.6 speed / latency 27 tok/s / 15402ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
小水管 API5 tests | Claude Opus 4.6 speed / latency 45 tok/s / 6167ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
素墨API5 tests | Claude Opus 4.6 speed / latency 47 tok/s / 2344ms input / output No data | DeepSeek V3.1 Terminus speed / latency N/A / N/A input / output No data |
Claude Opus 4.6 claude-opus-4-6-thinking speed / latency No data input / output $5.00/M / $25.00/M | DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.010/M / $0.010/M | |
Claude Opus 4.6 claude-opus-4-6-thinking speed / latency No data input / output $0.342/M / $1.71/M | DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.018/M / $0.068/M | |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.040/M / $0.200/M | DeepSeek V3.1 Terminus deepseek-v3.1-terminus speed / latency No data input / output $0.020/M / $0.040/M |
This report only uses LMSpeed data for Claude Opus 4.6 and DeepSeek V3.1 Terminus: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.6 | DeepSeek V3.1 Terminus |
|---|---|---|
| When to choose each model | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize Cheapest input price, Provider coverage, Recent tests. | DeepSeek V3.1 Terminus DeepSeek V3.1 Terminus is stronger when you prioritize Average speed, First-token latency, Free providers. |
TL;DR: Tie leads across 78 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.6 vs DeepSeek V3.1 Terminus 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.
