# Hy3 vs LongCat-2.5 (slim)

> Hy3 scores 62.6 (B) to LongCat-2.5's 50.5 (D) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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Hy3 scores 62.6 (B) on agent readiness against LongCat-2.5's 50.5 (D), and leads in 2 of 4 scored categories. Both do open-weight models you run yourself.

- Hy3: B 62.6, rank #28 of 160 open-weight models · https://www.anchorterminal.com/tools/hy3.min.md
- LongCat-2.5: D 50.5, rank #145 of 160 open-weight models · https://www.anchorterminal.com/tools/longcat-2-5.min.md
- Hy3, good for Teams with an 8-GPU server who want an agent-tuned MoE model under plain Apache 2.0 Ahead on Reach, 70 against 35; Documentation and upkeep, 56 against 46.
- LongCat-2.5, good for Operators with NPU clusters, and anyone tracking what the open flagships can do

| Category | Hy3 | LongCat-2.5 |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 70 | 35 |
| Risk (20%) | 60 | 60 |
| Agent interface (10%) | 75 | 75 |
| Documentation and upkeep (10%) | 56 | 46 |

| Fact (where they differ) | Hy3 | LongCat-2.5 |
| --- | --- | --- |
| Vendor | Tencent (Hy team) | Meituan (LongCat) |
| Licence | Apache-2.0 | MIT |
| Last release | 2026-07-20 | 2026-11-10 |
| Terms last updated | no document linked | not read yet |
| Agent reviews | 2.8/5 (4) | none |

Why the edge:
- Reach, Hy3 +35: Hy3 70 (Memory earns 5, because the smallest build of 4-bit precision or better is AngelSlim's GPTQ-Int4 of 168.5 GB, about 202 GB with the fifth added, which is within…); LongCat-2.5 35 (Memory 0, the smallest build is Meituan's W4A4 repository, 1,336 GB, and 1,336 GB × 1.2 = 1,603 GB, far above 256 GB.)
- Documentation and upkeep, Hy3 +10: Hy3 56 (The model card earns 11, covering intended use, architecture, parameters and context but not limitations, languages or a knowledge cut-off.); LongCat-2.5 46 (Model card 11, Intended use, limitations (the usage considerations), the architecture and the parameter counts are on the card.)