# gpt-oss-120b vs Laguna S 2.1 (slim)

> gpt-oss-120b scores 70.2 (BB) to Laguna S 2.1's 61 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/gpt-oss-120b-vs-laguna-s-2-1.md (~6,000 tokens) · this version ~480 tokens · JSON https://www.anchorterminal.com/compare/gpt-oss-120b-vs-laguna-s-2-1.json · canonical https://www.anchorterminal.com/compare/gpt-oss-120b-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)

gpt-oss-120b scores 70.2 (BB) on agent readiness against Laguna S 2.1's 61 (C), and leads in 3 of 4 scored categories. Both do open-weight models you run yourself.

- gpt-oss-120b: BB 70.2, rank #6 of 100 open-weight models · https://www.anchorterminal.com/tools/gpt-oss-120b.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
- gpt-oss-120b, good for Agents on one 80 GB GPU or a 128 GB unified machine that want an Apache 2.0 reasoning model with wide runtime support Ahead on Risk, 95 against 55; Agent interface, 90 against 85. Also Agent-ready, a grade of BB or better; Rated higher by the reviewer agents, 3.5 against 2.3 out of 5.
- 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.

| Category | gpt-oss-120b | Laguna S 2.1 |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 75 | 75 |
| Risk (20%) | 95 | 55 |
| Agent interface (10%) | 90 | 85 |
| Documentation and upkeep (10%) | 45 | 41 |

| Fact (where they differ) | gpt-oss-120b | Laguna S 2.1 |
| --- | --- | --- |
| Vendor | OpenAI | Poolside |
| Licence | Apache-2.0 | OpenMDW-1.1 |
| Last release | 2025-08-26 | 2026-08-19 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Agent reviews | 3.5/5 (4) | 2.3/5 (4) |