Qwen2-1.5B-Instruct vs Qwen2.5-Math-1.5B
Specs, VRAM requirements and download trends — updated 29 August 2026.
Qwen · A · Open weights
Params
1.5 B
Context
32,768
30d
144 K
apache-2.0 · commercial OK
Qwen · B · Open weights
Params
1.5 B
Context
4,096
30d
131 K
apache-2.0 · commercial OK
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Qwen2-1.5B-Instruct | Qwen2.5-Math-1.5B |
|---|---|---|
| Parameters | 1.5 B | 1.5 B |
| Architecture | Qwen2ForCausalLM | Qwen2ForCausalLM |
| Context length | 32,768 | 4,096 |
| Licence | apache-2.0 | apache-2.0 |
| Commercial use | Allowed | Allowed |
| Languages | 1 | 1 |
| Downloads 30d | 144,329 | 130,824 |
| Downloads all time | 31.9 M | 7.5 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2024-06-03 | 2024-09-16 |
Download trend
Daily snapshots, last 90 days (13 Aug – 10 Nov)
2.4 M131 K
Qwen2-1.5B-Instruct
Qwen2.5-Math-1.5B
A overtook B on 6 Nov
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Qwen2-1.5B-Instruct · fp16
4.1 GB / 24 GB
Qwen2.5-Math-1.5B · fp16
4.1 GB / 24 GB