Qwen3-1.7B vs Qwen1.5-0.5B-Chat
Specs, VRAM requirements and download trends — updated 6 August 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Qwen3-1.7B | Qwen1.5-0.5B-Chat |
|---|---|---|
| Parameters | 2.0 B | 620 M |
| Architecture | Qwen3ForCausalLM | Qwen2ForCausalLM |
| Context length | 40,960 | 32,768 |
| Licence | apache-2.0 | other |
| Commercial use | Allowed | Unknown |
| Languages | — | 1 |
| Downloads 30d | 7,765,125 | 200,708 |
| Downloads all time | 56.3 M | 7.9 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-04-27 | 2024-01-31 |
Download trend
Daily snapshots, last 10 days (28 Jul – 6 Aug)
7.8 M160 K
Qwen3-1.7B
Qwen1.5-0.5B-Chat
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Qwen1.5-0.5B-Chat · fp16
2.0 GB / 24 GB
Qwen3-1.7B · fp16
5.3 GB / 24 GB