Data points: 99
The readout for Claude Opus 4.6 and DeepSeek V4 Flash, before the detailed comparison sheet.
Decision read
DeepSeek V4 Flash
DeepSeek V4 Flash currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
99 data points
Includes 8 benchmark rows, 6 audit samples, and 8 provider examples.
Selection signal
Start with DeepSeek V4 Flash
The charts below split 22 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.6 vs DeepSeek V4 Flashclaude-opus-4-6-vs-deepseek-v4-flash | Model A Claude Opus 4.6 | Model B DeepSeek V4 Flash |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | First-token latency, Provider coverage | Cheapest input price, Average speed, Free providers, Recent tests |
| Model metadata | No OpenRouter metadata is available yet for this model. | No OpenRouter metadata is available yet for this model. |
| Developer | Anthropic | DeepSeek |
| Context window | No data | No data |
| Max output | No data | No data |
| Released | No data | No data |
| Modalities | No data | No data |
| Features | None listed | None listed |
| Parameters | No data | No data |
| Tokenizer | No data | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | No data |
| 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 V4 Flash |
|---|---|---|
| Output price | $25.00/M#46 | $0.280/M#4 |
| Input price | $6.25/M#41 | $0.140/M#8 |
| Blended price | $10.94/M#67 | $0.175/M#10 |
| GPQA | 84.0%#38 | 89.4%#11 |
| HLE | 18.6%#43 | 32.1%#13 |
| SciCode | 45.7%#20 | 44.9%#23 |
| Time to first answer token | 1.32 s#33 | 61.38 s#99 |
| Time to first token | 1.32 s#54 | 0.98 s#37 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | DeepSeek V4 Flash |
|---|---|---|
VSLLMWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 94 76100100100 | DeepSeek V4 Flash deepseek-v4-flash-free No audit yet |
速创APIWinner: DeepSeek V4 Flash | Claude Opus 4.6 claude-opus-4-6 No audit yet | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 |
Cuz AIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 | DeepSeek V4 Flash deepseek-v4-flash No audit yet |
Yuan APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 | DeepSeek V4 Flash deepseek-v4-flash No audit yet |
MyDamoxingWinner: DeepSeek V4 Flash | Claude Opus 4.6 claude-opus-4-6 No audit yet | DeepSeek V4 Flash deepseek-v4-flash Audit score 84 787584100 |
小水管 APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 84 728480100 | DeepSeek V4 Flash deepseek-v4-flash Audit score 81 727280100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.6 | DeepSeek V4 Flash |
|---|---|---|
小水管 API25 tests | Claude Opus 4.6 claude-opus-4-6 speed / latency 45 tok/s / 6167ms input / output $0/M / $0/M | DeepSeek V4 Flash sensenova/deepseek-v4-flash speed / latency 83 tok/s / 5114ms input / output $0/M / $0/M |
钠 API25 tests | Claude Opus 4.6 speed / latency 42 tok/s / 2282ms input / output No data | DeepSeek V4 Flash speed / latency 85 tok/s / 6387ms input / output No data |
OpenCode20 tests | Claude Opus 4.6 speed / latency N/A / N/A input / output No data | DeepSeek V4 Flash speed / latency 55 tok/s / 31496ms input / output No data |
6i2 API15 tests | Claude Opus 4.6 speed / latency 280 tok/s / 3242ms input / output No data | DeepSeek V4 Flash speed / latency 307 tok/s / 3427ms input / output No data |
Rnglg2 API15 tests | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data | DeepSeek V4 Flash speed / latency N/A / N/A input / output No data |
Claude Opus 4.6 claude-opus-4.6 speed / latency No data input / output $0/M / $0/M | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.140/M / $0.280/M | |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.685/M / $3.42/M | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.0012/M / $0.0012/M | |
Claude Opus 4.6 claude-opus-4-6-thinking speed / latency No data input / output $0.342/M / $1.71/M | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.012/M / $0.024/M |
This report only uses LMSpeed data for Claude Opus 4.6 and DeepSeek V4 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.6 | DeepSeek V4 Flash |
|---|---|---|
| When to choose each model | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize First-token latency, Provider coverage. | DeepSeek V4 Flash DeepSeek V4 Flash is stronger when you prioritize Cheapest input price, Average speed, Free providers, Recent tests. |
TL;DR: DeepSeek V4 Flash leads across 99 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.6 vs DeepSeek V4 Flash 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.
