Comparing 2 models
Gemini 3.5 Flash vs GPT-6.1 Sol
Benchmarks through
Verdict
GPT-6.1 Sol places higher on 5 of the 5 tasks where both are ranked. Gemini 3.5 Flash costs 1.3x less per input token. GPT-6.1 Sol accepts 1.0x more context.
- Choose GPT-6.1 Sol for Translation (#2), Literary Translation (#2), RAG & Long Context (#2).
Built from the published task rankings below; ranks come from each task's own weighted benchmarks, so a win on one task says nothing about another.
Measured head to head
Benchmarks both models were run on
| Evaluation | Gemini 3.5 Flash | GPT-6.1 Sol | Source |
|---|---|---|---|
| Design Arena Coding | 1268 Elo | 1346 Elo | source · 2026-10-16 |
| Design Arena UI | 1272 Elo | 1331 Elo | source · 2026-10-16 |
| Design Arena Website | 1269 Elo | 1323 Elo | source · 2026-10-16 |
| FACTS Grounding | 73.2% | 82.4% | source · 2026-10-16 |
| FrontierMath Tiers 1-3 (Epoch AI) | 62.8% ± 2.9 | 93.7% ± 1.4 | source · 2026-06-10 |
| GPQA Diamond (Epoch AI) | 88.9% ± 2.2 | 95.4% ± 1.4 | source · 2026-08-06 |
| GPQA Diamond (Epoch AI) | 86.4% ± 2.4 | 95.4% ± 1.4 | source · 2026-07-15 |
| GPQA Diamond (Epoch AI) | 92.8% ± 1.6 | 95.4% ± 1.4 | source · 2026-05-22 |
| LiveBench Agentic Coding | 49.0% | 54.5% | source · 2026-10-16 |
| LiveBench Coding | 78.2% | 80.4% | source · 2026-10-16 |
| LiveBench Data Analysis | 64.9% | 82.7% | source · 2026-10-16 |
| LiveBench Instruction Following | 75.6% | 74.2% | source · 2026-10-16 |
| LiveBench Language | 84.6% | 90.1% | source · 2026-10-16 |
| LiveBench Math | 88.2% | 96.8% | source · 2026-10-16 |
| LiveBench Reasoning | 82% | 92.6% | source · 2026-10-16 |
| LMArena Creative Writing | 1468 Elo | 1430 Elo | source · 2026-10-15 |
| LMArena Instruction Following | 1467 Elo | 1469 Elo | source · 2026-10-15 |
| LMArena Long Query | 1483 Elo | 1464 Elo | source · 2026-10-15 |
| LMArena Math | 1503 Elo | 1470 Elo | source · 2026-10-15 |
| LMArena Text | 1477 Elo | 1484 Elo | source · 2026-10-15 |
| LMArena Text Factuality | 1477 Elo | 1465 Elo | source · 2026-10-15 |
| LMArena Vision | 1284 Elo | 1294 Elo | source · 2026-10-09 |
| LMArena Vision Diagrams | 1309 Elo | 1311 Elo | source · 2026-10-09 |
| LMArena Vision OCR | 1293 Elo | 1295 Elo | source · 2026-10-09 |
| LMArena WebDev | 1499 Elo | 1760 Elo | source · 2026-10-13 |
| LMArena WebDev Image-to-Web | 1501 Elo | 1703 Elo | source · 2026-10-09 |
| OTIS Mock AIME (Epoch AI) | 88.9% ± 4.7 | 100% ± 0 | source · 2026-08-06 |
| OTIS Mock AIME (Epoch AI) | 80% ± 6 | 100% ± 0 | source · 2026-07-15 |
| OTIS Mock AIME (Epoch AI) | 95.6% ± 2.7 | 100% ± 0 | source · 2026-05-25 |
| SimpleQA Verified (Epoch AI) | 66.2% ± 1.5 | 73.9% ± 1.4 | source · 2026-08-27 |
Values are as published by each evaluator, in its own units; rows from different evaluators are not on a common scale.
task evidence
How they place when the question changes
Lower ranks are better. “Best” marks the strongest option in this shortlist for that task.