Qwen3 1.7B vs Qwen3.5 2B
| Benchmark | Qwen3 1.7B | Qwen3.5 2B |
|---|---|---|
| Humanity's Last Exam | 5.3 | 2.6 |
| MMMU-Pro (vision) | — | 43 |
Specs
| Spec | Qwen3 1.7B | Qwen3.5 2B |
|---|---|---|
| Input, per 1M | $0.32 | $0.02 |
| Output, per 1M | $1.60 | $0.10 |
| Context | 33K | 262K |
| Weights | Open | Open |
| Released | Apr 2025 | Mar 2026 |
| Memory (4-bit) | 1 GB | 1.1 GB |
| Licence | Apache-2.0 | Apache-2.0 |
| Commercial use | Allowed | Allowed |
| See images | — | ✓ |
| Read PDFs | ? | — |
| Hear audio | — | — |
| Watch video | — | — |
| Call tools | ✓ | ✓ |
| Force a tool call | ? | ? |
| Return strict JSON | Partial | Partial |
| Search the web | ? | ? |
| Run code | ? | ? |
| Use a computer | ? | ? |
What breaks when you switch
Qwen3 1.7B → Qwen3.5 2B
Memory (4-bit): 1 GB → 1.1 GB
Qwen3.5 2B → Qwen3 1.7B