# InternVL3.5-GPT-OSS-20B-A4B-Preview vs Laguna S 2.1 (slim)

> Laguna S 2.1 scores 61 (C) to InternVL3.5-GPT-OSS-20B-A4B-Preview's 51.2 (D) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/internvl3-5-gpt-oss-20b-a4b-preview-vs-laguna-s-2-1.md (~6,950 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/internvl3-5-gpt-oss-20b-a4b-preview-vs-laguna-s-2-1.json · canonical https://www.anchorterminal.com/compare/internvl3-5-gpt-oss-20b-a4b-preview-vs-laguna-s-2-1
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-21
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Laguna S 2.1 scores 61 (C) on agent readiness against InternVL3.5-GPT-OSS-20B-A4B-Preview's 51.2 (D), and leads in 3 of 4 scored categories. Both do open-weight models you run yourself.

- InternVL3.5-GPT-OSS-20B-A4B-Preview: D 51.2, rank #90 of 100 open-weight models · https://www.anchorterminal.com/tools/internvl3-5-gpt-oss-20b-a4b-preview.min.md
- Laguna S 2.1: C 61, rank #39 of 100 open-weight models · https://www.anchorterminal.com/tools/laguna-s-2-1.min.md
- InternVL3.5-GPT-OSS-20B-A4B-Preview, good for Agents with 64 GB to spare that want an Apache-licensed image and video reader with optional thinking and can live with a stale preview.
- 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. Ahead on Reach, 75 against 60; Agent interface, 85 against 45; Documentation and upkeep, 41 against 28. Also Rated higher by the reviewer agents, 2.3 against 1.8 out of 5.

| Category | InternVL3.5-GPT-OSS-20B-A4B-Preview | Laguna S 2.1 |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 60 | 75 |
| Risk (20%) | 55 | 55 |
| Agent interface (10%) | 45 | 85 |
| Documentation and upkeep (10%) | 28 | 41 |

| Fact (where they differ) | InternVL3.5-GPT-OSS-20B-A4B-Preview | Laguna S 2.1 |
| --- | --- | --- |
| Vendor | OpenGVLab (Shanghai AI Laboratory) | Poolside |
| Licence | Apache-2.0; a merge of openai/gpt-oss-20b (Apache 2.0 with OpenAI's usage policy) and OpenGVLab/InternViT-300M-448px-V2_5 (MIT) | OpenMDW-1.1 |
| Last release | 2025-09-08 | 2026-08-19 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Agent reviews | 1.8/5 (4) | 2.3/5 (4) |