Grok 4.3 vs Qwen3 8
Grok 4.3 
Qwen3 8 Verdict
- Qwen3 8 (max) leads on quality: 63.6 vs 60.7.
- Grok 4.3 (medium) is stronger in agents & tools, instruction following, knowledge.
- Qwen3 8 (max) is stronger in composite, long context, multimodal, coding, human preference, maths, reasoning.
- Grok 4.3 (medium) is 1.7× cheaper ($1.56 vs $2.67 per 1M blended).
- Grok 4.3 (medium) streams 3.0× faster (112 vs 38 tokens per second).
| Metric | Grok 4.3 (medium) | Qwen3 8 (max) |
|---|---|---|
| BenchLeader Index | 60.7 | 63.6 |
| Agents & tools score | 60.1 | 56.0 |
| Composite score | 60.3 | 70.9 |
| Instruction following score | 80.0 | – |
| Knowledge score | 72.1 | 62.3 |
| Long context score | 64.0 | 65.7 |
| Multimodal score | 60.2 | 67.2 |
| Coding score | – | 69.7 |
| Human preference score | – | 68.3 |
| Maths score | – | 62.4 |
| Reasoning score | – | 68.1 |
| Blended price $/M | $1.56 | $2.67 |
| Output speed | 112 tok/s | 38 tok/s |
| Time to first answer | 12.1 s | 55.3 s |
| Context window | 1M | 1M |
| SciCode | – | 52.9% |
| ProofBench | – | 58.0% |
| Epoch Capabilities Index | – | 156.6 |
| LMArena Text | – | 1480 |
| LMArena Hard Prompts | – | 1502 |
| LMArena Coding | – | 1520 |
| LMArena WebDev | – | 1670 |
| LMArena Vision | – | 1313 |
| LMArena Agent | – | 3.9 |
| LiveBench | – | 78.5% |
| LiveBench Reasoning | – | 88.2% |
| LiveBench Coding | – | 72.9% |
| LiveBench Agentic Coding | – | 64.7% |
| LiveBench Mathematics | – | 91.3% |
| LiveBench Data Analysis | – | 78.4% |
| LiveBench Language | – | 79.7% |
| AA Intelligence Index | 24.8 | 40.3 |
| IFBench | 83.3% | – |
| AA-LCR | 75.0% | 78.3% |
| MMMU-Pro | 75.8% | 82.3% |
| AA-Omniscience | 16.7 | 3.4 |
| Terminal-Bench Hard | 30.3% | – |
| GPQA Diamond (AA) | 89.0% | 92.7% |
| Humanity's Last Exam (AA) | 30.0% | 43.0% |
| SciCode (AA) | – | 53.2% |
| τ²-Bench Telecom (AA) | 91.2% | – |
| LiveCodeBench | – | 87.8% |
| MMLU-Pro | – | 88.6% |
| IOI | – | 73.0% |
| LegalBench | – | 83.6% |
| CorpFin | – | 65.8% |
| TaxEval | – | 75.5% |
| Terminal-Bench 2.1 (Vals) | – | 67.4% |
| SWE-bench (Vals) | – | 85.6% |
| GPQA Diamond (Vals) | – | 93.7% |
| Vals Index | – | 51.8 |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Grok 4.3 vs Qwen3 8: questions
- Is Grok 4.3 better than Qwen3 8?
- Qwen3 8 (max) leads on quality: 63.6 vs 60.7. The BenchLeader Index combines every independent quality benchmark; Qwen3 8 (max) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Grok 4.3 better than Qwen3 8 for agentic tasks?
- Grok 4.3 scores higher in agentic tasks (60 vs 56 on the category index, where 50 is average).
- Which is cheaper, Grok 4.3 or Qwen3 8?
- Grok 4.3 is cheaper: $1.56 against $2.67 per million tokens, blended at three input tokens per output token.
- Which is faster, Grok 4.3 or Qwen3 8?
- Grok 4.3 streams faster: 112 against 38 output tokens per second.
- Which has the larger context window?
- Both accept 1M tokens of context.