GLM 5.3 Flash vs GPT-6 Sol
GLM 5.3 Flash 
GPT-6 Sol Verdict
- GPT-6 Sol (max) leads on quality: 67.7 vs 63.4.
- GLM 5.3 Flash is stronger in agents & tools, coding, human preference, maths.
- GPT-6 Sol (max) is stronger in composite, knowledge, long context, multimodal, reasoning.
- GLM 5.3 Flash is 17× cheaper ($0.238 vs $4.00 per 1M blended).
- GPT-6 Sol (max) streams 2.1× faster (126 vs 61 tokens per second).
| Metric | GLM 5.3 Flash | GPT-6 Sol (max) |
|---|---|---|
| BenchLeader Index | 63.4 | 67.7 |
| Agents & tools score | 64.3 | – |
| Coding score | 65.7 | – |
| Composite score | 60.2 | 86.2 |
| Human preference score | 67.6 | – |
| Knowledge score | 66.3 | 75.4 |
| Long context score | 65.8 | 67.7 |
| Maths score | 71.1 | – |
| Multimodal score | 65.3 | 67.1 |
| Reasoning score | 68.5 | 95.0 |
| Blended price $/M | $0.238 | $4.00 |
| Output speed | 61 tok/s | 126 tok/s |
| Time to first answer | 35.7 s | 107.2 s |
| Context window | 1M | 1.1M |
| SciCode | 51.6% | – |
| APEX-Agents | 52.8% | – |
| Epoch Capabilities Index | 151.9 | – |
| LMArena Text | 1475 | – |
| LMArena Hard Prompts | 1498 | – |
| LMArena Coding | 1525 | – |
| LMArena WebDev | 1607 | – |
| LMArena Vision | 1299 | – |
| LMArena Agent | 1.1 | – |
| LiveBench | 71.6% | – |
| LiveBench Reasoning | 77.6% | – |
| LiveBench Coding | 79.0% | – |
| LiveBench Agentic Coding | 56.8% | – |
| LiveBench Mathematics | 81.2% | – |
| LiveBench Data Analysis | 76.4% | – |
| LiveBench Language | 77.3% | – |
| LiveBench Instruction Following | 52.8% | – |
| AA Intelligence Index | 41.8 | 47.5 |
| AA-LCR | 80.0% | 83.7% |
| MMMU-Pro | – | 83.3% |
| AA-Omniscience | 7.5 | 27.1 |
| GPQA Diamond (AA) | 91.2% | – |
| Humanity's Last Exam (AA) | 39.9% | 47.9% |
| SciCode (AA) | 51.6% | 57.6% |
| CritPt | 15.4% | 30.9% |
| GDPval (AA) | 57.0% | 49.4% |
| τ²-Bench Banking (AA) | 47.2% | – |
| LMArena Maths | 1513 | – |
| LMArena Creative Writing | 1435 | – |
| LMArena Instruction Following | 1471 | – |
| LMArena Multi-turn | 1475 | – |
| LMArena Longer Queries | 1476 | – |
| BTF-3 | 14.9% | – |
| Terminal-Bench 4.0 (AA) | 32.8% | 43.9% |
| Terminal-Bench 2.1 (AA) | 84.3% | – |
| AutomationBench | 60.4% | 61.6% |
| GDP.pdf | 15.4% | 24.8% |
| MLCR | 51.1% | 16.1% |
| EnterpriseOps-Gym | 33.2% | – |
| AA-Omniscience: accuracy | 27.5% | 54.5% |
| AA-Omniscience: non-hallucination | 72.4% | 39.9% |
| AA-Briefcase | 1459 | 1483 |
| AA Openness Index | 44.4 | – |
Data as of 2026-09-23. Best configuration of each model; every score links to its source on the model pages.
GLM 5.3 Flash vs GPT-6 Sol: questions
- Is GLM 5.3 Flash better than GPT-6 Sol?
- GPT-6 Sol (max) leads on quality: 67.7 vs 63.4. 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, GLM 5.3 Flash or GPT-6 Sol?
- GLM 5.3 Flash is cheaper: $0.238 against $4.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.3 Flash or GPT-6 Sol?
- GPT-6 Sol streams faster: 126 against 61 output tokens per second.
- Which has the larger context window?
- GPT-6 Sol accepts more context: 1.1M against 1M tokens.