Hy3 vs Hy3-preview
Specs, VRAM requirements and download trends — updated 24 October 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Hy3 | Hy3-preview |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 298.8 B | 298.8 B |
| Architecture | HYV3ForCausalLM | HYV3ForCausalLM |
| Context length | 262,144 | 262,144 |
| Licence | apache-2.0 | other |
| Commercial use | Allowed | Unknown |
| Languages | — | — |
| Downloads 30d | 837,193 | 84,611 |
| Downloads all time | 882 K | 491 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2026-07-02 | 2026-04-13 |
| API input price / 1M tokens | $0.13 | $0.18 |
| API output price / 1M tokens | $0.53 | $0.60 |
| Est. cost per 1M input + 1M output tokens | $0.66 | $0.78 |
| Cached input / 1M tokens | $0.033 | $0.06 |
| AA Intelligence Index | — | 25.3 |
| AA Coding Index | — | 58.8 |
| AA Agentic Index | — | 24.1 |
| Max output tokens | 128,000 | 235,929 |
| API providers | 5 | 1 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
Hy3
$0.66
Hy3-preview
$0.78
Hy3 is 1.2× cheaper at list price.
Download trend
Daily snapshots, last 26 days (29 Sep – 24 Oct)
837 K88 K
Hy3
Hy3-preview
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Hy3 · fp16 @ 256K ctx
2,092.0 GB / 24 GB
Hy3-preview · fp16 @ 256K ctx
2,092.0 GB / 24 GB