GLM 5.3 Flash vs Grok 4.7
GLM 5.3 Flash 
Grok 4.7 Verdict
- Grok 4.7 (high) leads on quality: 65.8 vs 63.9.
- GLM 5.3 Flash is stronger in agents & tools, coding, human preference, long context, maths, multimodal.
- Grok 4.7 (high) is stronger in composite, knowledge, reasoning.
- GLM 5.3 Flash is 13× cheaper ($0.238 vs $3.00 per 1M blended).
- GLM 5.3 Flash streams 1.7× faster (94 vs 55 tokens per second).
| Metric | GLM 5.3 Flash | Grok 4.7 (high) |
|---|---|---|
| BenchLeader Index | 63.9 | 65.8 |
| Agents & tools score | 68.0 | – |
| Coding score | 64.0 | – |
| Composite score | 61.6 | 87.5 |
| Human preference score | 67.6 | – |
| Knowledge score | 67.6 | 72.6 |
| Long context score | 66.4 | 64.8 |
| Maths score | 71.1 | – |
| Multimodal score | 65.3 | – |
| Reasoning score | 70.2 | 76.4 |
| Blended price $/M | $0.238 | $3.00 |
| Output speed | 94 tok/s | 55 tok/s |
| Time to first answer | 23.8 s | 1.4 s |
| Context window | 1M | 500k |
| SciCode | 46.1% | – |
| Epoch Capabilities Index | 151.4 | – |
| 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 | 46.3 |
| AA-LCR | 80.0% | 77.0% |
| AA-Omniscience | 7.5 | 30.9 |
| GPQA Diamond (AA) | 91.2% | – |
| Humanity's Last Exam (AA) | 39.9% | 42.3% |
| SciCode (AA) | 51.6% | 57.8% |
| LegalBench | – | 85.1% |
| CritPt | 15.4% | 18.0% |
| GDPval (AA) | 57.0% | 59.7% |
| τ²-Bench Banking (AA) | 47.2% | – |
| Code Migration | – | 34.7% |
| Excel Modeling Benchmark | – | 54.9% |
| Harvey's Legal Agent Benchmark | – | 19.6% |
| Legal Research Bench | – | 39.9% |
| MedCode | – | 48.7% |
| MedScribe | – | 87.2% |
| ProgramBench | – | 0.0% |
| Public Benefits Bench | – | 68.5% |
| SAGE | – | 31.0% |
| LMArena Maths | 1513 | – |
| LMArena Creative Writing | 1435 | – |
| LMArena Instruction Following | 1471 | – |
| LMArena Multi-turn | 1475 | – |
| LMArena Longer Queries | 1476 | – |
Data as of 2026-09-21. Best configuration of each model; every score links to its source on the model pages.
GLM 5.3 Flash vs Grok 4.7: questions
- Is GLM 5.3 Flash better than Grok 4.7?
- Grok 4.7 (high) leads on quality: 65.8 vs 63.9. The BenchLeader Index combines every independent quality benchmark; Grok 4.7 (high) is ahead overall as of 2026-09-21, but check the category scores for your use.
- Which is cheaper, GLM 5.3 Flash or Grok 4.7?
- GLM 5.3 Flash is cheaper: $0.238 against $3.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.3 Flash or Grok 4.7?
- GLM 5.3 Flash streams faster: 94 against 55 output tokens per second.
- Which has the larger context window?
- GLM 5.3 Flash accepts more context: 1M against 500k tokens.