Gemini 3 Flash vs GPT-6 Sol
Gemini 3 Flash 
GPT-6 Sol Verdict
- GPT-6 Sol (max) leads on quality: 67.7 vs 59.8.
- Gemini 3 Flash (thinking) is stronger in agents & tools, instruction following.
- GPT-6 Sol (max) is stronger in composite, knowledge, long context, multimodal, reasoning.
- Gemini 3 Flash (thinking) is 3.6× cheaper ($1.13 vs $4.00 per 1M blended).
- Gemini 3 Flash (thinking) streams 1.7× faster (218 vs 126 tokens per second).
| Metric | Gemini 3 Flash (thinking) | GPT-6 Sol (max) |
|---|---|---|
| BenchLeader Index | 59.8 | 67.7 |
| Agents & tools score | 55.1 | – |
| Composite score | 60.7 | 86.2 |
| Instruction following score | 75.6 | – |
| Knowledge score | 67.6 | 75.4 |
| Long context score | 64.8 | 67.7 |
| Multimodal score | 63.7 | 67.1 |
| Reasoning score | 56.8 | 95.0 |
| Blended price $/M | $1.13 | $4.00 |
| Output speed | 218 tok/s | 126 tok/s |
| Time to first answer | 6.3 s | 107.2 s |
| Context window | 1.0M | 1.1M |
| AA Intelligence Index | 26.3 | 47.5 |
| IFBench | 78.0% | – |
| AA-LCR | 78.0% | 83.7% |
| MMMU-Pro | 79.9% | 83.3% |
| AA-Omniscience | 10.1 | 27.1 |
| Terminal-Bench Hard | 38.6% | – |
| GPQA Diamond (AA) | 89.8% | – |
| Humanity's Last Exam (AA) | 36.6% | 47.9% |
| SciCode (AA) | – | 57.6% |
| τ²-Bench Telecom (AA) | 80.4% | – |
| CritPt | 8.6% | 30.9% |
| GDPval (AA) | – | 49.4% |
| τ²-Bench Banking (AA) | 20.8% | – |
| APEX-Agents (AA) | 27.7% | – |
| Terminal-Bench 4.0 (AA) | – | 43.9% |
| AutomationBench | – | 61.6% |
| GDP.pdf | – | 24.8% |
| MLCR | – | 16.1% |
| AA-Omniscience: accuracy | 53.4% | 54.5% |
| AA-Omniscience: non-hallucination | 7.0% | 39.9% |
| AA-Briefcase | – | 1483 |
Data as of 2026-09-23. Best configuration of each model; every score links to its source on the model pages.
Gemini 3 Flash vs GPT-6 Sol: questions
- Is Gemini 3 Flash better than GPT-6 Sol?
- GPT-6 Sol (max) leads on quality: 67.7 vs 59.8. The BenchLeader Index combines every independent quality benchmark; GPT-6 Sol (max) is ahead overall as of 2026-09-23, but check the category scores for your use.
- Which is cheaper, Gemini 3 Flash or GPT-6 Sol?
- Gemini 3 Flash is cheaper: $1.13 against $4.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Gemini 3 Flash or GPT-6 Sol?
- Gemini 3 Flash streams faster: 218 against 126 output tokens per second.
- Which has the larger context window?
- GPT-6 Sol accepts more context: 1.1M against 1.0M tokens.