DeepSeek V4.1 Flash 1017 vs GPT-6 Sol: Benchmark Comparison
DeepSeek V4.1 Flash 1017 has the higher score on 4 of 9 shared benchmarks; GPT-6 Sol leads on 5.
The largest observed score gap is 29.35 pts on Tax Agent Bench , where DeepSeek V4.1 Flash 1017 leads.
Reported ±1 standard-error ranges overlap on 2 of 9 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 V4.1 Flash 1017 | GPT-6 Sol | Gap | Reported uncertainty |
|---|---|---|---|---|
| Vals Index | 56.58% ±1.27 | 57.54% ±1.01 | 0.95 pts | Reported ±1 SE ranges overlap |
| Harvey's Legal Agent Benchmark | 9.17% ±2.51 | 1.67% ±0.82 | 7.50 pts | Reported ±1 SE ranges do not overlap |
| Legal Research Bench | 45.19% ±3.46 | 28.85% ±3.15 | 16.35 pts | Reported ±1 SE ranges do not overlap |
| EMB | 61.80% ±3.19 | 71.53% ±2.35 | 9.73 pts | Reported ±1 SE ranges do not overlap |
| Finance Agent (v2) | 56.96% ±2.05 | 49.05% ±0.58 | 7.91 pts | Reported ±1 SE ranges do not overlap |
| Tax Agent Bench | 44.35% ±3.57 | 15.00% ±2.58 | 29.35 pts | Reported ±1 SE ranges do not overlap |
| Code Migration | 44.21% ±4.46 | 57.20% ±4.21 | 12.98 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench 4.0 | 31.82% ±2.62 | 44.44% ±3.54 | 12.63 pts | Reported ±1 SE ranges do not overlap |
| Vibe Code Bench v1.1 | 87.73% ±2.75 | 87.82% ±2.53 | 0.09 pts | Reported ±1 SE ranges overlap |
Performance by category
| Category | DeepSeek V4.1 Flash 1017 average | GPT-6 Sol average |
|---|---|---|
| Legal | 27.18% | 15.26% |
| Finance | 54.37% | 45.19% |
| Coding | 54.59% | 63.15% |
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 V4.1 Flash 1017 cost | GPT-6 Sol cost | DeepSeek V4.1 Flash 1017 latency | GPT-6 Sol latency |
|---|---|---|---|---|
| Vals Index | $0.64 | $7.58 | 36m33s | 29m11s |
| Harvey's Legal Agent Benchmark | $0.54 | $3.36 | 21m39s | 13m40s |
| Legal Research Bench | $0.70 | $4.90 | 35m07s | 24m09s |
| EMB | $0.36 | $1.28 | 16m47s | 10m22s |
| Finance Agent (v2) | $0.46 | $2.12 | 14m39s | 9m00s |
| Tax Agent Bench | $0.46 | $2.28 | 21m04s | 17m32s |
| Code Migration | $1.86 | $15.68 | 2h11m | 1h26m |
| Terminal-Bench 4.0 | $0.54 | $5.79 | 41m10s | 34m56s |
| Vibe Code Bench v1.1 | $0.58 | $26.36 | 16m14s | 38m56s |
Results available only for DeepSeek V4.1 Flash 1017
None.
Results available only for GPT-6 Sol
- Vals RSI Index
- Vals Science Index
- MedCode
- MedScribe
- ProofBench v1.1
- BioMysteryBench
- MysteryMechanism
- Terminal-Bench-Science
- SAGE
- IOI
- ProgramBench
- CyberBench v1.1
- SRE Bench
- Public Benefits Bench v1.1