Kimi K3 vs Qwen3.5 Plus 2026-04-20
Kimi K3 
Qwen3.5 Plus 2026-04-20 Verdict
- Kimi K3 leads on quality: 65.7 vs 57.3.
- Kimi K3 is stronger in agents & tools, coding, composite, human preference, knowledge, long context, maths, multimodal.
- Qwen3.5 Plus 2026-04-20 (thinking) is 4.7× cheaper ($1.29 vs $6.00 per 1M blended).
- Qwen3.5 Plus 2026-04-20 (thinking) streams 1.4× faster (52 vs 37 tokens per second).
| Metric | Kimi K3 | Qwen3.5 Plus 2026-04-20 (thinking) |
|---|---|---|
| BenchLeader Index | 65.7 | 57.3 |
| Agents & tools score | 67.4 | – |
| Coding score | 65.0 | 61.8 |
| Composite score | 70.6 | – |
| Human preference score | 71.2 | – |
| Knowledge score | 66.8 | 60.5 |
| Long context score | 69.2 | – |
| Maths score | 78.1 | 60.6 |
| Multimodal score | 64.0 | – |
| Blended price $/M | $6.00 | $1.29 |
| Output speed | 37 tok/s | 52 tok/s |
| Time to first answer | 57.9 s | 0.9 s |
| Context window | 1.0M | 1M |
| SciCode | 58.7% | – |
| APEX-Agents | 39.3% | – |
| FrontierCode | 44.2% | – |
| ProofBench | 87.0% | – |
| Epoch Capabilities Index | 157.6 | – |
| LiveBench | 79.2% | – |
| LiveBench Reasoning | 90.7% | – |
| LiveBench Coding | 81.5% | – |
| LiveBench Agentic Coding | 62.2% | – |
| LiveBench Mathematics | 84.4% | – |
| LiveBench Data Analysis | 78.7% | – |
| LiveBench Language | 85.5% | – |
| AA Intelligence Index | 43.8 | – |
| AA-LCR | 88.7% | – |
| MMMU-Pro | 80.5% | – |
| AA-Omniscience | 19.7 | – |
| GPQA Diamond (AA) | 93.5% | – |
| Humanity's Last Exam (AA) | 46.9% | – |
| SciCode (AA) | 59.5% | – |
| AIME (Vals) | – | 86.0% |
| LiveCodeBench | – | 85.3% |
| MMLU-Pro | – | 87.2% |
| LegalBench | 86.0% | 85.1% |
| CorpFin | 71.6% | 65.3% |
| TaxEval | 75.7% | – |
| MedQA | – | 95.2% |
| Terminal-Bench 2.1 (Vals) | 80.9% | – |
| SWE-bench (Vals) | 93.4% | 71.2% |
| GPQA Diamond (Vals) | 92.9% | 87.4% |
| Vals Index | 57.8 | – |
| EQ-Bench 4 | 1339 | – |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
Kimi K3 vs Qwen3.5 Plus 2026-04-20: questions
- Is Kimi K3 better than Qwen3.5 Plus 2026-04-20?
- Kimi K3 leads on quality: 65.7 vs 57.3. The BenchLeader Index combines every independent quality benchmark; Kimi K3 is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is Kimi K3 better than Qwen3.5 Plus 2026-04-20 for coding?
- Kimi K3 scores higher in coding (65 vs 62 on the category index, where 50 is average).
- Which is cheaper, Kimi K3 or Qwen3.5 Plus 2026-04-20?
- Qwen3.5 Plus 2026-04-20 is cheaper: $1.29 against $6.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Kimi K3 or Qwen3.5 Plus 2026-04-20?
- Qwen3.5 Plus 2026-04-20 streams faster: 52 against 37 output tokens per second.
- Which has the larger context window?
- Kimi K3 accepts more context: 1.0M against 1M tokens.