Qwen3.5-9B vs Qwen3.8-27B
Specs, VRAM requirements and download trends — updated 23 October 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Qwen3.5-9B | Qwen3.8-27B |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 9.7 B | 27.8 B |
| Architecture | Qwen3_5ForConditionalGeneration | Qwen3_5ForConditionalGeneration |
| Context length | 262,144 | 262,144 |
| Licence | apache-2.0 | apache-2.0 |
| Commercial use | Allowed | Allowed |
| Languages | — | — |
| Downloads 30d | 6,689,005 | 7,758,670 |
| Downloads all time | 71.3 M | 17.6 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2026-02-27 | 2026-08-05 |
| API input price / 1M tokens | $0.08 | $0.20 |
| API output price / 1M tokens | $0.13 | $2.50 |
| Est. cost per 1M input + 1M output tokens | $0.21 | $2.70 |
| Cached input / 1M tokens | $0.04 | $0.09 |
| AA Intelligence Index | 13.3 | 33.7 |
| AA Coding Index | 23.5 | 68.1 |
| AA Agentic Index | — | 45.8 |
| Max output tokens | 65,536 | 235,929 |
| API providers | 5 | 21 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
Qwen3.5-9B
$0.21
Qwen3.8-27B
$2.70
Qwen3.5-9B is 12.9× cheaper at list price.
Download trend
Daily snapshots, last 88 days (28 Jul – 23 Oct)
14.3 M1.0 M
Qwen3.5-9B
Qwen3.8-27B
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Qwen3.5-9B · fp16
23.2 GB / 24 GB
Qwen3.8-27B · fp16
65.8 GB / 24 GB