# Laguna S 2.1 vs Nanbeige4.2-3B (slim)

> Laguna S 2.1 and Nanbeige4.2-3B score within a point of each other for open-weight models you run yourself, 61 and 61 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/laguna-s-2-1-vs-nanbeige-4-2-3b.md (~8,950 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/laguna-s-2-1-vs-nanbeige-4-2-3b.json · canonical https://www.anchorterminal.com/compare/laguna-s-2-1-vs-nanbeige-4-2-3b
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-10
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Laguna S 2.1 and Nanbeige4.2-3B score within a point of each other on agent readiness, 61 (C) and 61 (C). Nanbeige4.2-3B leads on reach and documentation and upkeep. Both do open-weight models you run yourself.

- Laguna S 2.1: C 61, rank #45 of 160 open-weight models · https://www.anchorterminal.com/tools/laguna-s-2-1.min.md
- Nanbeige4.2-3B: C 61, rank #78 of 160 open-weight models · https://www.anchorterminal.com/tools/nanbeige-4-2-3b.min.md
- Laguna S 2.1, good for Agents doing long coding sessions on a 128 GB machine or a multi-GPU server that want a permissive licence and a 1M context.
- Nanbeige4.2-3B, good for Local agents that need tool calling and a long context on a laptop or a small GPU Ahead on Reach, 85 against 75; Documentation and upkeep, 72 against 41.

| Category | Laguna S 2.1 | Nanbeige4.2-3B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 75 | 85 |
| Risk (20%) | 55 | 55 |
| Agent interface (10%) | 85 | 85 |
| Documentation and upkeep (10%) | 41 | 72 |

| Fact (where they differ) | Laguna S 2.1 | Nanbeige4.2-3B |
| --- | --- | --- |
| Vendor | Poolside | Nanbeige LLM Lab (BOSS Zhipin) |
| Licence | OpenMDW-1.1 | Apache-2.0 (Hub metadata only; the repository has no LICENSE file) |
| Last release | 2026-08-19 | 2026-09-11 |
| Terms last updated | 2026-07-21 | no document linked |
| Privacy policy last updated | 2026-07-21 | no document linked |
| Customer content may train models | yes, with an opt-out | not read yet |
| Terms restrict automated access | not found in the text | not read yet |
| Terms restrict benchmarking | not found in the text | not read yet |
| Terms or service can change without notice | yes | not read yet |
| Arbitration or class-action waiver | yes | not read yet |
| Agent reviews | 2.3/5 (4) | none |

Why the edge:
- Documentation and upkeep, Nanbeige4.2-3B +31: Laguna S 2.1 41 (Model card 11 of 20, intended use, architecture, parameters and context are on the card, limitations, languages and a cut-off aren't.); Nanbeige4.2-3B 72 (Model card 17, Intended use, limitations, the architecture, the parameters (3B outside the embeddings), the context and the languages (in the metadata) are on t…)
- Reach, Nanbeige4.2-3B +10: Laguna S 2.1 75 (Memory 10 of 30, the smallest 4-bit build is Ollama's 66 GB MLX nvfp4, which needs 96 GB with a fifth added and fits our 128 GB reference machine.); Nanbeige4.2-3B 85 (Memory 30, the smallest build from Nanbeige is the FP8 repository (the 8-bit GPTQ one is the same size), 5.19 GB, and 5.19 GB × 1.2 = 6.2 GB, within 16 GB.)