Introducing Laguna S 2.1 (Poolside blog) 21 Jul 2026
- Terminal-Bench 2.1 70.2
- SWE-Bench Multilingual 78.5
- SWE-Bench Pro (Public Dataset) 59.4
- DeepSWE 40.4
- SWE Atlas (Codebase QnA) 46.2
- Toolathlon Verified 49.7
Laguna S 2.1
Laguna S 2.1.
8
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
Poolside Jul 2026 Laguna S 2.1
Open weights Mid-size
No Epoch Capabilities Index score yet
- SWE-bench Multilingual 78.5% #15 /70
- BullshitBench V2 22% #82 /122
- BullshitBench 23.6% #64 /107
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Knowledge and language
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| BullshitBench | 23.6% | #64 of 107 | Official leaderboard | |
| BullshitBench V2 | 22% | #82 of 122 | Official leaderboard |
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| SWE-bench Multilingual | 78.5% | #15 of 70 | Model card | |
| SWE-Bench Pro | 59.4% | #27 of 77 | Model card | |
| SWE Atlas | 46.2% | #8 of 11 | Model card | |
| DeepSWE | 40.4% | #48 of 51 | Model card |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Terminal-Bench 2.1 | 70.2% | #36 of 53 | Model card | |
| Toolathlon-Verified | 49.7% | #12 of 13 | Model card |
Its launch post
The benchmarks the lab chose to headline, with the scores it gave.