Qwen2.5-3B-Instruct vs Qwen3-4B-Thinking-2507
Specs, VRAM requirements and download trends — updated 21 September 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Qwen2.5-3B-Instruct | Qwen3-4B-Thinking-2507 |
|---|---|---|
| Parameters | 3.1 B | 4.0 B |
| Architecture | Qwen2ForCausalLM | Qwen3ForCausalLM |
| Context length | 32,768 | 262,144 |
| Licence | other | apache-2.0 |
| Commercial use | Unknown | Allowed |
| Languages | 1 | — |
| Downloads 30d | 4,751,814 | 419,975 |
| Downloads all time | 120.0 M | 7.4 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2024-09-17 | 2025-08-05 |
Download trend
Daily snapshots, last 56 days (28 Jul – 21 Sep)
7.6 M307 K
Qwen2.5-3B-Instruct
Qwen3-4B-Thinking-2507
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Qwen2.5-3B-Instruct · fp16
7.8 GB / 24 GB
Qwen3-4B-Thinking-2507 · fp16 @ 256K ctx
28.6 GB / 24 GB