DeepSeek V4 Pro 0813 vs Gemini 3.5 Flash: Benchmark Comparison
DeepSeek V4 Pro 0813 has the higher score on 11 of 21 shared benchmarks; Gemini 3.5 Flash leads on 9.
The largest observed score gap is 33.61 pts on Vibe Code Bench v1.1 , where DeepSeek V4 Pro 0813 leads.
Reported ±1 standard-error ranges overlap on 9 of 21 shared benchmarks with comparable uncertainty data. This is not a pairwise statistical significance test.
Shared benchmark results
Scores and reported standard errors come from the latest visible Vals benchmark version available for both models.
| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Gap | Reported uncertainty |
|---|---|---|---|---|
| Vals Index | 47.63% ±1.12 | 44.79% ±1.10 | 2.84 pts | Reported ±1 SE ranges do not overlap |
| Harvey's Legal Agent Benchmark | 7.50% ±2.15 | 2.50% ±0.83 | 5.00 pts | Reported ±1 SE ranges do not overlap |
| Legal Research Bench | 40.87% ±3.42 | 30.77% ±3.21 | 10.10 pts | Reported ±1 SE ranges do not overlap |
| LegalBench | 82.36% ±0.44 | 83.60% ±0.85 | 1.24 pts | Reported ±1 SE ranges overlap |
| EMB | 52.80% ±3.06 | 63.55% ±2.75 | 10.75 pts | Reported ±1 SE ranges do not overlap |
| Finance Agent (v2) | 50.39% ±0.25 | 57.86% ±0.23 | 7.47 pts | Reported ±1 SE ranges do not overlap |
| Tax Agent Bench | 58.66% ±3.14 | 53.53% ±3.30 | 5.14 pts | Reported ±1 SE ranges overlap |
| TaxEval v2 | 73.06% ±0.87 | 74.37% ±0.85 | 1.31 pts | Reported ±1 SE ranges overlap |
| MedCode | 42.47% ±2.16 | 55.83% ±2.11 | 13.36 pts | Reported ±1 SE ranges do not overlap |
| MedScribe | 80.17% ±2.00 | 76.57% ±1.92 | 3.60 pts | Reported ±1 SE ranges overlap |
| ProofBench v1.1 | 50.00% ±5.03 | 31.00% ±4.65 | 19.00 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench Science | 4.29% ±2.44 | 5.71% ±2.79 | 1.43 pts | Reported ±1 SE ranges overlap |
| GPQA Diamond | 92.42% ±2.02 | 92.68% ±1.46 | 0.25 pts | Reported ±1 SE ranges overlap |
| MMLU Pro | 86.97% ±0.34 | 89.52% ±0.31 | 2.54 pts | Reported ±1 SE ranges do not overlap |
| Code Migration | 41.54% ±4.30 | 26.75% ±4.10 | 14.79 pts | Reported ±1 SE ranges do not overlap |
| LiveCodeBench | 87.53% ±0.96 | 87.60% ±0.95 | 0.08 pts | Reported ±1 SE ranges overlap |
| ProgramBench | 0.00% ±0.00 | 0.00% ±0.00 | 0.00 pts | Reported ±1 SE ranges overlap |
| SkillsBench | 53.83% ±4.49 | 52.74% ±4.47 | 1.09 pts | Reported ±1 SE ranges overlap |
| SWE-bench | 96.40% ±0.83 | 78.80% ±1.83 | 17.60 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench 4.0 | 14.14% ±2.02 | 6.06% ±1.51 | 8.08 pts | Reported ±1 SE ranges do not overlap |
| Vibe Code Bench v1.1 | 82.30% ±3.15 | 48.68% ±4.73 | 33.61 pts | Reported ±1 SE ranges do not overlap |
Performance by category
| Category | DeepSeek V4 Pro 0813 average | Gemini 3.5 Flash average |
|---|---|---|
| Legal | 43.58% | 38.96% |
| Finance | 58.73% | 62.33% |
| Healthcare | 61.32% | 66.20% |
| Math | 50.00% | 31.00% |
| Science | 4.29% | 5.71% |
| Academic | 89.70% | 91.10% |
| Coding | 53.68% | 42.95% |
Cost and latency
Cost per test appears only where the benchmark reports it for both models. Latency is the measured completion time for that benchmark.
| Benchmark | DeepSeek V4 Pro 0813 cost | Gemini 3.5 Flash cost | DeepSeek V4 Pro 0813 latency | Gemini 3.5 Flash latency |
|---|---|---|---|---|
| Vals Index | $3.35 | $3.30 | 1h04m | 18m17s |
| Harvey's Legal Agent Benchmark | $0.17 | $2.12 | 21m53s | 7m58s |
| Legal Research Bench | $1.09 | $1.31 | 42m07s | 4m38s |
| LegalBench | N/A | N/A | 20.05s | 34.58s |
| EMB | $1.08 | $5.17 | 37m27s | 18m44s |
| Finance Agent (v2) | $0.88 | $2.51 | 16m15s | 5m22s |
| Tax Agent Bench | $0.73 | $0.86 | 26m37s | 3m53s |
| TaxEval v2 | N/A | N/A | 3m46s | 19.69s |
| MedCode | N/A | N/A | 3m01s | 25.29s |
| MedScribe | N/A | N/A | 2m36s | 57.08s |
| ProofBench v1.1 | $0.06 | $0.57 | 12m12s | 6m34s |
| Terminal-Bench Science | $4.63 | $3.45 | 2h16m | 59m32s |
| GPQA Diamond | N/A | N/A | 4m39s | 27.66s |
| MMLU Pro | N/A | N/A | 59.62s | 26.26s |
| Code Migration | $18.58 | $5.73 | 3h32m | 19m28s |
| LiveCodeBench | N/A | N/A | 4m33s | 64.37s |
| ProgramBench | N/A | N/A | 1h23m | 18m25s |
| SkillsBench | $0.37 | $1.25 | 11m15s | 7m15s |
| SWE-bench | $0.10 | $0.95 | 4m00s | 4m14s |
| Terminal-Bench 4.0 | $3.31 | $5.98 | 1h32m | 1h11m |
| Vibe Code Bench v1.1 | $0.36 | $2.54 | 1h06m | 14m53s |
Results available only for DeepSeek V4 Pro 0813
- IOI
- Vibe Code Bench 1-100
- CyberBench v1.1
Results available only for Gemini 3.5 Flash
- MortgageTax
- MMMU Pro
- SAGE
- Public Benefits Bench v1.1