Gemini 3.6 Flash vs GPT-5.6 Sol
Gemini 3.6 Flash 
GPT-5.6 Sol Verdict
- GPT-5.6 Sol (high) leads on quality: 68.2 vs 60.8.
- Gemini 3.6 Flash is stronger in knowledge, maths, multimodal.
- GPT-5.6 Sol (high) is stronger in coding, composite, long context, agents & tools, instruction following, reasoning.
- Gemini 3.6 Flash is 5.3× cheaper ($1.50 vs $8.00 per 1M blended).
- Gemini 3.6 Flash streams 3.3× faster (194 vs 59 tokens per second).
| Metric | Gemini 3.6 Flash | GPT-5.6 Sol (high) |
|---|---|---|
| BenchLeader Index | 60.8 | 68.2 |
| Coding score | 49.8 | 72.4 |
| Composite score | 72.4 | 82.7 |
| Knowledge score | 74.7 | 73.8 |
| Long context score | 66.6 | 67.4 |
| Maths score | 54.8 | – |
| Multimodal score | 67.8 | 66.4 |
| Agents & tools score | – | 87.9 |
| Instruction following score | – | 67.8 |
| Reasoning score | – | 63.3 |
| Blended price $/M | $1.50 | $8.00 |
| Output speed | 194 tok/s | 59 tok/s |
| Time to first answer | 16.8 s | 31.0 s |
| Context window | 1.0M | 1M |
| SciCode | – | 56.9% |
| WeirdML | – | 88.8% |
| FrontierCode | 34.4% | – |
| ProofBench | 36.0% | – |
| Epoch Capabilities Index | 154.3 | – |
| AA Intelligence Index | 34.3 | 42.5 |
| IFBench | – | 69.2% |
| AA-LCR | 80.0% | 81.7% |
| MMMU-Pro | 83.2% | 81.8% |
| AA-Omniscience | 22.1 | 20.4 |
| Terminal-Bench Hard | – | 62.1% |
| GPQA Diamond (AA) | 92.8% | 92.8% |
| Humanity's Last Exam (AA) | 40.8% | 46.0% |
| SciCode (AA) | 53.4% | 57.8% |
| τ²-Bench Telecom (AA) | – | 83.3% |
| AIME 2026 | 96.7% | – |
| HMMT February 2026 | 89.4% | – |
| MathArena Apex | 26.0% | – |
| EnigmaEval | – | 37.1% |
| ARC-AGI-1 | – | 97.0% |
| ARC-AGI-2 | – | 85.4% |
| ARC-AGI-3 | – | 2.2% |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Gemini 3.6 Flash vs GPT-5.6 Sol: questions
- Is Gemini 3.6 Flash better than GPT-5.6 Sol?
- GPT-5.6 Sol (high) leads on quality: 68.2 vs 60.8. The BenchLeader Index combines every independent quality benchmark; GPT-5.6 Sol (high) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Gemini 3.6 Flash better than GPT-5.6 Sol for coding?
- GPT-5.6 Sol scores higher in coding (72 vs 50 on the category index, where 50 is average).
- Which is cheaper, Gemini 3.6 Flash or GPT-5.6 Sol?
- Gemini 3.6 Flash is cheaper: $1.50 against $8.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Gemini 3.6 Flash or GPT-5.6 Sol?
- Gemini 3.6 Flash streams faster: 194 against 59 output tokens per second.
- Which has the larger context window?
- Gemini 3.6 Flash accepts more context: 1.0M against 1M tokens.