Qwen3.8-27B vs Muse Spark 1.1
API pricing, benchmark indices and specs — updated 19 October 2026.
meta · B · API-only
Input / 1M
$1.25
Output / 1M
$4.25
AA index
33.7
proprietary · 1M context
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Qwen3.8-27B | Muse Spark 1.1 |
|---|---|---|
| Deployment | Open weights · also via API | API-only (closed weights) |
| Parameters | 27.8 B | n/a — API-only |
| Architecture | Qwen3_5ForConditionalGeneration | n/a — API-only |
| Context length | 262,144 | 1,048,576 |
| Licence | apache-2.0 | Proprietary |
| Commercial use | Allowed | Per API terms |
| Languages | — | n/a — API-only |
| Downloads 30d | 7,710,011 | n/a — API-only |
| Downloads all time | 17.7 M | n/a — API-only |
| Quantizations on the Hub | SAFETENSORS | n/a — API-only |
| Gated | No | n/a — API-only |
| First seen on the Hub | 2026-08-05 | n/a — API-only |
| API input price / 1M tokens | $0.20 | $1.25 |
| API output price / 1M tokens | $2.50 | $4.25 |
| Est. cost per 1M input + 1M output tokens | $2.70 | $5.50 |
| Cached input / 1M tokens | $0.09 | $0.15 |
| AA Intelligence Index | 33.7 | 33.7 |
| AA Coding Index | 68.1 | 71.3 |
| AA Agentic Index | 45.8 | 25.8 |
| Max output tokens | 235,929 | 943,718 |
| API providers | 21 | 1 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
Qwen3.8-27B
$2.70
Muse Spark 1.1
$5.50
Qwen3.8-27B is 2.0× cheaper at list price.
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Qwen3.8-27B · fp16
65.8 GB / 24 GB