Model benchmarks
qwen3.5:4b local LLM performance
As of September 2026, qwen3.5:4b runs at up to 96.4 tok/s for local inference (best of 2 community benchmark runs across 1 GPU).
Model size
4.7B
Peak speed
96.4 tok/s
Average speed
60.5 tok/s
Avg prefill
1880.4 tok/s
Min memory
5.2 GB
Max context
65,536 tokens
Avg output / run
20,648 tokens
Avg runtime / run
8m 49s
Avg quality
54.9
Benchmark runs
2
GPUs tested
1
Quality by task
Average LLM-judged quality (0–100) with the run-to-run spread shown as a P5–P95 band, overall and for each benchmark task, across all 2 runs. The low and high columns show how much the judge’s score varies between runs, and need at least two runs to display.
| Task | P5 (low) | Avg | P95 (high) |
|---|---|---|---|
| Overall | 50.6 | 54.9 | 59.2 |
| Agent Workflow | 40.8 | 51.6 | 62.4 |
| Code Generation | 21.7 | 24.7 | 27.6 |
| Role Play & Narrative | 74.6 | 76.4 | 78.2 |
| Research & Analysis | 65.4 | 67.1 | 68.8 |
Performance by hardware and tool
Every hardware/tool/quantization combination qwen3.5:4b has been benchmarked on, ranked by peak token generation speed. Last updated September 2026.
| Hardware | Tool | Quant | Best tok/s | Avg tok/s | Memory | Context | Quality | Runs |
|---|---|---|---|---|---|---|---|---|
| AMD Radeon RX 7700 XT / 7800 XT | Ollama | Q4_K_M | 96.4 tok/s | 60.5 tok/s | 5.2 GB | 65,536 tokens | 54.9 | 2 |
Frequently asked questions
- Is qwen3.5:4b good for coding?
- In our benchmarks, qwen3.5:4b scores 24.7/100 for coding. It runs at about 60.5 tok/s, so if you want more speed, unsloth/Qwen3.8-27B-GGUF:IQ3_S is faster (~104.3 tok/s) and still scores well for coding (83.0/100).
- Is qwen3.5:4b good for agentic (tool-using) tasks?
- In our benchmarks, qwen3.5:4b scores 51.6/100 for agentic workflows. It runs at about 60.5 tok/s, so if you want more speed, Tiel-Coder-35B-A3B-Q4_K_S is faster (~165.0 tok/s) and still scores well for agentic workflows (89.3/100).
- How fast is qwen3.5:4b for local inference?
- Across 2 community benchmark runs, qwen3.5:4b reaches up to 96.4 tok/s and averages 60.5 tok/s, with the fastest results on AMD Radeon RX 7700 XT / 7800 XT.
- How much memory does qwen3.5:4b need?
- The leanest observed configuration used about 5.2 GB of memory (quantizations tested: Q4_K_M).
- Which tools have been used to run qwen3.5:4b?
- Benchmarks were submitted using Ollama. Results are community-contributed and updated as new runs arrive.