Model comparison
Qwen3 14B vs Qwen3.5 Plus
Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 35.0 on the Noometry Index.
Last verified . 7 shared benchmarks.
Alibaba (Qwen)Summary
- They share 7 benchmarks with published results for both. Qwen3 14B scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5 Plus leads 32.0 to 18.1.
- The biggest single-benchmark swing is GPQA Diamond: 63.8% for Qwen3 14B and 84.8% for Qwen3.5 Plus.
- Qwen3 14B is cheaper at $0.35 / $1.40 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
- Qwen3.5 Plus accepts more context: 1M tokens versus 131K.
- Qwen3 14B has downloadable open weights; the other is API-only.
Side by side
| Qwen3 14B | Qwen3.5 Plus | |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 35.0 | 42.3 |
| Released | 2025-04 | 2026-02-16 |
| Weights | Open | Proprietary |
| Context window | 131K | 1M |
| Max output | 8K | 66K |
| Input $ / M tokens | $0.35 | $0.40 |
| Output $ / M tokens | $1.40 | $2.40 |
| Results tracked | 12 | 15 |
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Category by category
Coding Not comparable
Qwen3 14B: 36.7 (#191), Qwen3.5 Plus: —
Agentic & Tool Use Not comparable
Qwen3 14B: 29.4 (#78), Qwen3.5 Plus: —
| Benchmark | Qwen3 14B | Qwen3.5 Plus |
|---|---|---|
| Berkeley Function Calling Leaderboard | 41% | — |
| Vending-Bench 2 | — | 0.54 |
Reasoning Qwen3.5 Plus leads
Qwen3 14B: 18.1 (#272), Qwen3.5 Plus: 32.0 (#67)
| Benchmark | Qwen3 14B | Qwen3.5 Plus |
|---|---|---|
| Chess Puzzles | 4% | 22% |
| DTBench | 64% | 80.5% |
| LMCA | 18.2% | 36.4% |
| Epoch Capabilities Index | 138.23 | 146.79 |
| Kagi LLM Benchmark | 49.1% | — |
| CritPt | 0% | — |
| Mystery Game Puzzles | — | 17% |
Math Qwen3.5 Plus leads
Qwen3 14B: 37.0 (#102), Qwen3.5 Plus: 47.9 (#55)
| Benchmark | Qwen3 14B | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 66.4% | 86.7% |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Qwen3.5 Plus leads
Qwen3 14B: 39.2 (#124), Qwen3.5 Plus: 46.0 (#78)
| Benchmark | Qwen3 14B | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | 63.8% | 84.8% |
| Vectara Hallucination Rate | 5.4% | 10.7% |
| SimpleQA Verified | — | 25.4% |
Long Context Qwen3.5 Plus leads
Qwen3 14B: 38.0 (#201), Qwen3.5 Plus: 42.9 (#109)
| Benchmark | Qwen3 14B | Qwen3.5 Plus |
|---|---|---|
| Fiction.LiveBench | 62.5% | — |
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
Frequently asked questions
Is Qwen3 14B better than Qwen3.5 Plus?
Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 35.0 on the Noometry Index.
Which is cheaper, Qwen3 14B or Qwen3.5 Plus?
Qwen3 14B is cheaper. It lists at $0.35 per million input tokens and $1.40 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.
Which has the bigger context window?
Qwen3.5 Plus does, with 1M tokens against 131K.
How many benchmarks do Qwen3 14B and Qwen3.5 Plus share?
7 benchmarks have published results for both models. Qwen3 14B has 12 scored results on Noometry and Qwen3.5 Plus has 15.