GLM 5.3 vs GPT-5.6 Sol
GLM 5.3 
GPT-5.6 Sol Verdict
- GPT-5.6 Sol (high) leads on quality: 68.2 vs 60.0.
- GLM 5.3 (max) is stronger in human preference, maths, reasoning.
- GPT-5.6 Sol (high) is stronger in agents & tools, coding, knowledge, composite, instruction following, long context, multimodal.
- GLM 5.3 (max) is 3.7× cheaper ($2.15 vs $8.00 per 1M blended).
| Metric | GLM 5.3 (max) | GPT-5.6 Sol (high) |
|---|---|---|
| BenchLeader Index | 60.0 | 68.2 |
| Agents & tools score | 52.9 | 87.9 |
| Coding score | 65.2 | 72.4 |
| Human preference score | 68.6 | – |
| Knowledge score | 55.8 | 73.8 |
| Maths score | 60.0 | – |
| Reasoning score | 66.9 | 63.3 |
| Composite score | – | 82.7 |
| Instruction following score | – | 67.8 |
| Long context score | – | 67.4 |
| Multimodal score | – | 66.4 |
| Blended price $/M | $2.15 | $8.00 |
| Output speed | 56 tok/s | 59 tok/s |
| Time to first answer | 37.4 s | 31.0 s |
| Context window | 1.3M | 1M |
| GPQA Diamond | 90.9% | – |
| FrontierMath Tiers 1–3 | 68.8% | – |
| FrontierMath Tier 4 | 29.3% | – |
| OTIS Mock AIME | 91.1% | – |
| SimpleQA Verified | 41.0% | – |
| Terminal-Bench | 41.8% | – |
| SciCode | 56.5% | 56.9% |
| WeirdML | 75.4% | 88.8% |
| ProofBench | 49.0% | – |
| LMArena Text | 1482 | – |
| LMArena Hard Prompts | 1507 | – |
| LMArena Coding | 1528 | – |
| LMArena WebDev | 1613 | – |
| LMArena Agent | 2.6 | – |
| AA Intelligence Index | – | 42.5 |
| IFBench | – | 69.2% |
| AA-LCR | – | 81.7% |
| MMMU-Pro | – | 81.8% |
| AA-Omniscience | – | 20.4 |
| Terminal-Bench Hard | – | 62.1% |
| GPQA Diamond (AA) | – | 92.8% |
| Humanity's Last Exam (AA) | – | 46.0% |
| SciCode (AA) | – | 57.8% |
| τ²-Bench Telecom (AA) | – | 83.3% |
| LiveCodeBench | 80.5% | – |
| MMLU-Pro | 86.8% | – |
| LegalBench | 84.8% | – |
| TaxEval | 72.4% | – |
| Terminal-Bench 2.1 (Vals) | 71.5% | – |
| SWE-bench (Vals) | 95.4% | – |
| GPQA Diamond (Vals) | 88.1% | – |
| Vals Index | 57.0 | – |
| 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.
GLM 5.3 vs GPT-5.6 Sol: questions
- Is GLM 5.3 better than GPT-5.6 Sol?
- GPT-5.6 Sol (high) leads on quality: 68.2 vs 60.0. 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 GLM 5.3 better than GPT-5.6 Sol for coding?
- GPT-5.6 Sol scores higher in coding (72 vs 65 on the category index, where 50 is average).
- Is GLM 5.3 better than GPT-5.6 Sol for agentic tasks?
- GPT-5.6 Sol scores higher in agentic tasks (88 vs 53 on the category index, where 50 is average).
- Which is cheaper, GLM 5.3 or GPT-5.6 Sol?
- GLM 5.3 is cheaper: $2.15 against $8.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.3 or GPT-5.6 Sol?
- GPT-5.6 Sol streams faster: 59 against 56 output tokens per second.
- Which has the larger context window?
- GLM 5.3 accepts more context: 1.3M against 1M tokens.