Claude Sonnet 5 vs Gemini 3.7 Flash: Benchmark Comparison
Claude Sonnet 5 has the higher score on 9 of 27 shared benchmarks; Gemini 3.7 Flash leads on 17.
The largest observed score gap is 22.83 pts on IOI , where Gemini 3.7 Flash leads.
Reported ±1 standard-error ranges overlap on 9 of 27 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 | Claude Sonnet 5 | Gemini 3.7 Flash | Gap | Reported uncertainty |
|---|---|---|---|---|
| Vals Index | 51.77% ±1.09 | 51.27% ±1.10 | 0.50 pts | Reported ±1 SE ranges overlap |
| Harvey's Legal Agent Benchmark | 5.00% ±1.65 | 8.75% ±2.15 | 3.75 pts | Reported ±1 SE ranges overlap |
| Legal Research Bench | 41.83% ±3.43 | 34.62% ±3.31 | 7.21 pts | Reported ±1 SE ranges do not overlap |
| LegalBench | 83.92% ±0.46 | 87.26% ±0.42 | 3.33 pts | Reported ±1 SE ranges do not overlap |
| EMB | 66.32% ±3.01 | 71.33% ±2.26 | 5.01 pts | Reported ±1 SE ranges overlap |
| Finance Agent (v2) | 53.91% ±0.52 | 59.04% ±0.27 | 5.13 pts | Reported ±1 SE ranges do not overlap |
| MortgageTax | 70.03% ±0.90 | 66.65% ±0.92 | 3.38 pts | Reported ±1 SE ranges do not overlap |
| Tax Agent Bench | 29.37% ±3.25 | 22.80% ±3.03 | 6.58 pts | Reported ±1 SE ranges do not overlap |
| TaxEval v2 | 75.63% ±0.84 | 74.73% ±0.85 | 0.90 pts | Reported ±1 SE ranges overlap |
| MedCode | 47.54% ±2.27 | 53.39% ±2.12 | 5.85 pts | Reported ±1 SE ranges do not overlap |
| MedScribe | 76.05% ±3.05 | 83.94% ±2.00 | 7.89 pts | Reported ±1 SE ranges do not overlap |
| ProofBench v1.1 | 77.00% ±4.23 | 58.00% ±4.96 | 19.00 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench Science | 5.71% ±2.79 | 7.14% ±3.10 | 1.43 pts | Reported ±1 SE ranges overlap |
| GPQA Diamond | 88.89% ±2.22 | 93.94% ±1.49 | 5.05 pts | Reported ±1 SE ranges do not overlap |
| MMLU Pro | 87.55% ±0.37 | 90.12% ±0.30 | 2.58 pts | Reported ±1 SE ranges do not overlap |
| MMMU Pro | 83.01% ±0.90 | 88.96% ±0.75 | 5.95 pts | Reported ±1 SE ranges do not overlap |
| SAGE | 48.92% ±3.40 | 49.23% ±3.38 | 0.31 pts | Reported ±1 SE ranges overlap |
| Code Migration | 44.39% ±4.25 | 34.80% ±4.22 | 9.59 pts | Reported ±1 SE ranges do not overlap |
| IOI | 45.00% ±2.75 | 67.83% ±3.61 | 22.83 pts | Reported ±1 SE ranges do not overlap |
| LiveCodeBench | 82.43% ±1.09 | 88.65% ±0.92 | 6.22 pts | Reported ±1 SE ranges do not overlap |
| ProgramBench | 0.00% ±0.00 | 0.00% ±0.00 | 0.00 pts | Reported ±1 SE ranges overlap |
| SkillsBench | 46.48% ±4.49 | 65.89% ±4.55 | 19.42 pts | Reported ±1 SE ranges do not overlap |
| SWE-bench | 79.60% ±1.80 | 80.80% ±1.76 | 1.20 pts | Reported ±1 SE ranges overlap |
| Terminal-Bench 4.0 | 9.60% ±1.01 | 12.12% ±3.03 | 2.53 pts | Reported ±1 SE ranges overlap |
| Vibe Code Bench v1.1 | 81.33% ±3.05 | 70.39% ±4.84 | 10.93 pts | Reported ±1 SE ranges do not overlap |
| CyberBench v1.1 | 61.91% ±5.74 | 43.75% ±2.21 | 18.16 pts | Reported ±1 SE ranges do not overlap |
| SRE Bench | 0.38% ±0.38 | 4.58% ±1.29 | 4.20 pts | Reported ±1 SE ranges do not overlap |
Performance by category
| Category | Claude Sonnet 5 average | Gemini 3.7 Flash average |
|---|---|---|
| Legal | 43.58% | 43.54% |
| Finance | 59.05% | 58.91% |
| Healthcare | 61.80% | 68.67% |
| Math | 77.00% | 58.00% |
| Science | 5.71% | 7.14% |
| Academic | 86.48% | 91.01% |
| Education | 48.92% | 49.23% |
| Coding | 48.60% | 52.56% |
| Cyber | 31.14% | 24.16% |
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 | Claude Sonnet 5 cost | Gemini 3.7 Flash cost | Claude Sonnet 5 latency | Gemini 3.7 Flash latency |
|---|---|---|---|---|
| Vals Index | $13.72 | $4.71 | 54m16s | 47m27s |
| Harvey's Legal Agent Benchmark | $8.95 | $2.56 | 38m52s | 7m32s |
| Legal Research Bench | $2.72 | $0.76 | 25m46s | 4m49s |
| LegalBench | N/A | N/A | 4.90s | 2.23s |
| EMB | $10.29 | $5.69 | 49m46s | 10m51s |
| Finance Agent (v2) | $0.75 | $1.48 | 13m12s | 3m01s |
| MortgageTax | N/A | N/A | 28.67s | 4.11s |
| Tax Agent Bench | $1.79 | $0.48 | 19m19s | 87.24s |
| TaxEval v2 | N/A | N/A | 3m22s | 7.83s |
| MedCode | N/A | N/A | 2m15s | 9.16s |
| MedScribe | N/A | N/A | 4m12s | 16.82s |
| ProofBench v1.1 | $1.37 | $0.56 | 14m58s | 7m04s |
| Terminal-Bench Science | $28.28 | $6.26 | 2h59m | 1h18m |
| GPQA Diamond | N/A | N/A | 63.23s | 8.77s |
| MMLU Pro | N/A | N/A | 25.19s | 4.16s |
| MMMU Pro | N/A | N/A | 18.82s | 6.28s |
| SAGE | N/A | N/A | 7m14s | 9.79s |
| Code Migration | $35.31 | $21.46 | 1h57m | 2h39m |
| IOI | $12.89 | $3.40 | 59m44s | 21m09s |
| LiveCodeBench | N/A | N/A | 77.02s | 14.53s |
| ProgramBench | $24.36 | $7.13 | 1h31m | 21m30s |
| SkillsBench | $2.90 | $1.80 | 15m12s | 3m06s |
| SWE-bench | $1.49 | $1.44 | 16m02s | 5m50s |
| Terminal-Bench 4.0 | $26.33 | $9.02 | 1h45m | 1h24m |
| Vibe Code Bench v1.1 | $25.39 | $4.83 | 1h07m | 23m43s |
| CyberBench v1.1 | $1.89 | $2.15 | 16m57s | 7m34s |
| SRE Bench | $18.49 | $21.47 | 3h53m | 1h50m |
Results available only for Claude Sonnet 5
- Vibe Code Bench 1-100
- Public Benefits Bench v1.1
Results available only for Gemini 3.7 Flash
- Vals RSI Index