GLM 5.2 vs GPT-6 Astra
GLM 5.2 
GPT-6 Astra Verdict
- GPT-6 Astra (max) leads on quality: 70.5 vs 57.7.
- GPT-6 Astra (max) is stronger in agents & tools, coding, human preference, knowledge, maths, reasoning, composite.
- GLM 5.2 (max) is 9.3× cheaper ($2.15 vs $20.00 per 1M blended).
| Metric | GLM 5.2 (max) | GPT-6 Astra (max) |
|---|---|---|
| BenchLeader Index | 57.7 | 70.5 |
| Agents & tools score | 56.9 | 68.2 |
| Coding score | 63.8 | 77.3 |
| Human preference score | 67.3 | 67.9 |
| Knowledge score | 44.8 | 80.0 |
| Maths score | 55.8 | 77.2 |
| Reasoning score | 66.8 | 72.7 |
| Composite score | – | 72.9 |
| Blended price $/M | $2.15 | $20.00 |
| Output speed | 75 tok/s | 60 tok/s |
| Time to first answer | 34.2 s | 321.0 s |
| Context window | 1M | 1.1M |
| GPQA Diamond | 91.9% | 95.8% |
| FrontierMath Tiers 1–3 | 59.2% | 93.7% |
| FrontierMath Tier 4 | 29.3% | 97.6% |
| OTIS Mock AIME | 86.4% | 100.0% |
| SWE-bench Verified (Epoch) | 78.7% | – |
| SimpleQA Verified | 34.2% | 75.6% |
| Terminal-Bench | – | 58.2% |
| SciCode | 50.5% | 56.5% |
| WeirdML | 70.1% | – |
| FrontierCode | – | 53.3% |
| ProofBench | 35.0% | – |
| LMArena Text | 1472 | 1478 |
| LMArena Hard Prompts | 1493 | 1495 |
| LMArena Coding | 1510 | 1537 |
| LMArena WebDev | 1592 | 1800 |
| LMArena Agent | 4.6 | 12.4 |
| LiveBench | – | 82.2% |
| LiveBench Reasoning | – | 92.7% |
| LiveBench Coding | – | 80.4% |
| LiveBench Agentic Coding | – | 57.3% |
| LiveBench Mathematics | – | 96.8% |
| LiveBench Data Analysis | – | 83.0% |
| LiveBench Language | – | 89.4% |
| IOI | – | 100.0% |
| Terminal-Bench 2.1 (Vals) | 67.8% | 87.3% |
| SWE-bench (Vals) | 82.8% | – |
| Vals Index | – | 66.6 |
| ARC-AGI-1 | – | 97.5% |
| ARC-AGI-2 | – | 95.0% |
| ARC-AGI-3 | – | 98.6% |
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-6 Astra: questions
- Is GLM 5.2 better than GPT-6 Astra?
- GPT-6 Astra (max) leads on quality: 70.5 vs 57.7. The BenchLeader Index combines every independent quality benchmark; GPT-6 Astra (max) is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is GLM 5.2 better than GPT-6 Astra for coding?
- GPT-6 Astra scores higher in coding (77 vs 64 on the category index, where 50 is average).
- Is GLM 5.2 better than GPT-6 Astra for agentic tasks?
- GPT-6 Astra scores higher in agentic tasks (68 vs 57 on the category index, where 50 is average).
- Which is cheaper, GLM 5.2 or GPT-6 Astra?
- GLM 5.2 is cheaper: $2.15 against $20.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.2 or GPT-6 Astra?
- GLM 5.2 streams faster: 75 against 60 output tokens per second.
- Which has the larger context window?
- GPT-6 Astra accepts more context: 1.1M against 1M tokens.