GLM 5.2 vs GPT-5.6 Sol
GLM 5.2 
GPT-5.6 Sol Verdict
- GPT-5.6 Sol (high) leads on quality: 66.0 vs 57.7.
- GLM 5.2 (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 5.2 (max) is 3.7× cheaper ($2.15 vs $8.00 per 1M blended).
| Metric | GLM 5.2 (max) | GPT-5.6 Sol (high) |
|---|---|---|
| BenchLeader Index | 57.7 | 66.0 |
| Agents & tools score | 56.9 | 82.5 |
| Coding score | 63.8 | 72.4 |
| Human preference score | 67.3 | – |
| Knowledge score | 44.8 | 70.4 |
| Maths score | 55.8 | – |
| Reasoning score | 66.8 | 63.3 |
| Composite score | – | 75.7 |
| Instruction following score | – | 64.7 |
| Long context score | – | 65.1 |
| Multimodal score | – | 65.5 |
| Blended price $/M | $2.15 | $8.00 |
| Output speed | 75 tok/s | 61 tok/s |
| Time to first answer | 34.2 s | 12.6 s |
| Context window | 1M | 1.1M |
| GPQA Diamond | 91.9% | – |
| FrontierMath Tiers 1–3 | 59.2% | – |
| FrontierMath Tier 4 | 29.3% | – |
| OTIS Mock AIME | 86.4% | – |
| SWE-bench Verified (Epoch) | 78.7% | – |
| SimpleQA Verified | 34.2% | – |
| SciCode | 50.5% | 56.9% |
| WeirdML | 70.1% | 88.8% |
| ProofBench | 35.0% | – |
| LMArena Text | 1472 | – |
| LMArena Hard Prompts | 1493 | – |
| LMArena Coding | 1510 | – |
| LMArena WebDev | 1592 | – |
| LMArena Agent | 4.6 | – |
| 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% |
| Terminal-Bench 2.1 (Vals) | 67.8% | – |
| SWE-bench (Vals) | 82.8% | – |
| EnigmaEval | – | 37.1% |
| ARC-AGI-1 | – | 97.0% |
| ARC-AGI-2 | – | 85.4% |
| ARC-AGI-3 | – | 2.2% |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
GLM 5.2 vs GPT-5.6 Sol: questions
- Is GLM 5.2 better than GPT-5.6 Sol?
- GPT-5.6 Sol (high) leads on quality: 66.0 vs 57.7. The BenchLeader Index combines every independent quality benchmark; GPT-5.6 Sol (high) is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is GLM 5.2 better than GPT-5.6 Sol for coding?
- GPT-5.6 Sol scores higher in coding (72 vs 64 on the category index, where 50 is average).
- Is GLM 5.2 better than GPT-5.6 Sol for agentic tasks?
- GPT-5.6 Sol scores higher in agentic tasks (83 vs 57 on the category index, where 50 is average).
- Which is cheaper, GLM 5.2 or GPT-5.6 Sol?
- GLM 5.2 is cheaper: $2.15 against $8.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.2 or GPT-5.6 Sol?
- GLM 5.2 streams faster: 75 against 61 output tokens per second.
- Which has the larger context window?
- GPT-5.6 Sol accepts more context: 1.1M against 1M tokens.