Comparing 2 models
Kimi K3 vs Qwen3.8 27B
Benchmarks through
Verdict
Qwen3.8 27B places higher on 6 of the 9 tasks where both are ranked. Qwen3.8 27B costs 6.0x less per input token. Kimi K3 accepts 1.0x more context.
- Choose Kimi K3 for Local LLM for Coding (#1), Structured Data Extraction (#3), JSON & Schema Output (#3).
- Choose Qwen3.8 27B for Open-Weight LLM for Self-Hosting (#1), Value LLM (#1), Cheapest Capable LLM (#1).
Built from the published task rankings below; ranks come from each task's own weighted benchmarks, so a win on one task says nothing about another.
Measured head to head
Benchmarks both models were run on
| Evaluation | Kimi K3 | Qwen3.8 27B | Source |
|---|---|---|---|
| LiveBench Agentic Coding | 62.2% | 61.4% | source · 2026-10-18 |
| LiveBench Coding | 81.5% | 75.7% | source · 2026-10-18 |
| LiveBench Data Analysis | 78.7% | 76.6% | source · 2026-10-18 |
| LiveBench Instruction Following | 71.4% | 72.7% | source · 2026-10-18 |
| LiveBench Language | 85.5% | 74.3% | source · 2026-10-18 |
| LiveBench Math | 84.4% | 86.2% | source · 2026-10-18 |
| LiveBench Reasoning | 90.7% | 80.0% | source · 2026-10-18 |
| LMArena Agent | 1.8 | -3.8 | source · 2026-10-20 |
| LMArena Agent Steerability | 0.4 | -3.9 | source · 2026-10-20 |
| LMArena Agent Task Outcome | 6.3 | -1.5 | source · 2026-10-20 |
| LMArena Agent Tool Hallucination | 0.7 | -0.1 | source · 2026-10-20 |
| LMArena Creative Writing | 1457 Elo | 1383 Elo | source · 2026-10-20 |
| LMArena Instruction Following | 1485 Elo | 1436 Elo | source · 2026-10-20 |
| LMArena Long Query | 1494 Elo | 1448 Elo | source · 2026-10-20 |
| LMArena Math | 1494 Elo | 1455 Elo | source · 2026-10-20 |
| LMArena Text | 1488 Elo | 1437 Elo | source · 2026-10-20 |
| LMArena Text Factuality | 1472 Elo | 1437 Elo | source · 2026-10-20 |
| LMArena WebDev | 1655 Elo | 1593 Elo | source · 2026-10-19 |
| LMArena WebDev Image-to-Web | 1579 Elo | 1577 Elo | source · 2026-10-19 |
Values are as published by each evaluator, in its own units; rows from different evaluators are not on a common scale.
task evidence
How they place when the question changes
Lower ranks are better. “Best” marks the strongest option in this shortlist for that task.