Model comparison
Phi-4 Mini vs Qwen3.5 Plus
Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 30.9 on the Noometry Index. Phi-4 Mini costs 6.9× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Microsoft
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. Phi-4 Mini scores higher in 0 categories and Qwen3.5 Plus in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5 Plus leads 46.0 to 25.3.
- The biggest single-benchmark swing is Vectara Hallucination Rate: 23.5% for Phi-4 Mini and 10.7% for Qwen3.5 Plus.
- Phi-4 Mini is cheaper at $0.075 / $0.30 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
- Qwen3.5 Plus accepts more context: 1M tokens versus 128K.
- Phi-4 Mini has downloadable open weights; the other is API-only.
Side by side
| Phi-4 Mini | Qwen3.5 Plus | |
|---|---|---|
| Provider | Microsoft | Alibaba (Qwen) |
| Noometry Index | 30.9 | 42.9 |
| Released | 2024-12-11 | 2026-02-16 |
| Weights | Open | Proprietary |
| Context window | 128K | 1M |
| Max output | 4K | 66K |
| Input $ / M tokens | $0.075 | $0.40 |
| Output $ / M tokens | $0.30 | $2.40 |
| Results tracked | 3 | 15 |
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Category by category
Coding Not comparable
Phi-4 Mini: 28.1 (#317), Qwen3.5 Plus: —
Agentic & Tool Use Not comparable
Phi-4 Mini: —, Qwen3.5 Plus: —
| Benchmark | Phi-4 Mini | Qwen3.5 Plus |
|---|---|---|
| Vending-Bench 2 | — | 0.54 |
Reasoning Qwen3.5 Plus leads
Phi-4 Mini: 22.4 (#195), Qwen3.5 Plus: 32.8 (#74)
| Benchmark | Phi-4 Mini | Qwen3.5 Plus |
|---|---|---|
| CritPt | 0% | — |
| Chess Puzzles | — | 22% |
| Mystery Game Puzzles | — | 17% |
| DTBench | — | 80.5% |
| LMCA | — | 36.4% |
| Epoch Capabilities Index | — | 146.78 |
Math Not comparable
Phi-4 Mini: —, Qwen3.5 Plus: 49.6 (#61)
| Benchmark | Phi-4 Mini | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Qwen3.5 Plus leads
Phi-4 Mini: 25.3 (#262), Qwen3.5 Plus: 46.0 (#83)
| Benchmark | Phi-4 Mini | Qwen3.5 Plus |
|---|---|---|
| Vectara Hallucination Rate | 23.5% | 10.7% |
| GPQA Diamond | — | 84.8% |
| SimpleQA Verified | — | 25.4% |
Long Context Not comparable
Phi-4 Mini: —, Qwen3.5 Plus: 43.0 (#113)
| Benchmark | Phi-4 Mini | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
Frequently asked questions
Is Phi-4 Mini better than Qwen3.5 Plus?
Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 30.9 on the Noometry Index. Phi-4 Mini costs 6.9× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.
Which is cheaper, Phi-4 Mini or Qwen3.5 Plus?
Phi-4 Mini is cheaper. It lists at $0.075 per million input tokens and $0.30 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 128K.
How many benchmarks do Phi-4 Mini and Qwen3.5 Plus share?
1 benchmark has published results for both models. Phi-4 Mini has 3 scored results on Noometry and Qwen3.5 Plus has 15.