Laguna S 2.1
- Price
- Free
- API
- No
- Weights
- Yes
WHAT IT DOES
Laguna S 2.1 is a 118 billion parameter Mixture-of-Experts model from Poolside AI, released August 2026. Activates only 8 billion parameters per token, supports context windows up to 1 million tokens, runs under permissive OpenMDW-1.1 license. Benchmarks: 70.2% on Terminal-Bench 2.1 (beating DeepSeek-V4-Pro-Max, Nvidia Nemotron 3 Ultra), 78.5% on SWE-Bench Multilingual. Trained in under 9 weeks on 4,096 Nvidia H200 GPUs.
WHY WE PICKED IT
Benchmark contender: claims to beat models many times its size on two critical coding benchmarks. Open weights under permissive license. Rapid training timeline (9 weeks) suggests efficient engineering. Strong SWE-Bench showing makes it worth evaluating for coding agent workloads.
QUICK FACTS
STRENGTHS
- ✓70.2% on Terminal-Bench 2.1 (beats larger closed models)
- ✓78.5% on SWE-Bench Multilingual
- ✓1M token context window
- ✓Efficient MoE: 118B total / 8B active per token
- ✓OpenMDW-1.1 permissive license
GETTING STARTED
Download weights from Hugging Face. Use vLLM or llama.cpp with MoE support. Quantize to 4-bit for consumer GPUs using bitsandbytes.
OFFICIAL LINKS
USE CASE EXAMPLES
Terminal-Bench SWE Challenge Solving
Solve competitive programming challenges with reasoning and code generation.
- Load Laguna S 2.1 with vLLM
- Feed problem statement to 1M context window
- Generate solution with benchmark-proven accuracy
- Verify against test cases
Long-Context Code Review
Review entire codebases using 1M token context for architectural understanding.
- Concatenate repository files (under 1M tokens)
- Request architectural analysis
- Get cross-file impact analysis
- Identify long-range dependency issues
Multilingual SWE-Bench Tasks
Solve engineering tasks across multiple programming languages.
- Submit multilingual codebase
- Request SWE-Bench-style completion
- Get 78.5% accuracy on multilingual tasks
- Validate completions match expected behavior
PRICING
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EXPLORE ALTERNATIVES
Compare Laguna S 2.1 with 5+ similar ides & coding tools AI tools.
FREQUENTLY ASKED QUESTIONS
Is Laguna S 2.1 free?
Yes, Laguna S 2.1 is completely free to use.
Does Laguna S 2.1 have an API?
No, Laguna S 2.1 does not appear to offer a public API.
What is Laguna S 2.1 best for?
Laguna S 2.1 is best for Coding Performance. Laguna S 2. Benchmark contender: claims to beat models many times its size on two critical coding benchmarks. Open weights under permissive license. Rapid training timeline (9 weeks) suggests efficient engineering. Strong SWE-Bench showing makes it worth evaluating for coding agent workloads.
What platforms does Laguna S 2.1 support?
Laguna S 2.1 supports local.
Is Laguna S 2.1 open source?
Yes, Laguna S 2.1 is open source. You can access the source code on GitHub at https://github.com/poolside-ai/laguna.
How do I get started with Laguna S 2.1?
Download weights from Hugging Face. Use vLLM or llama.cpp with MoE support. Quantize to 4-bit for consumer GPUs using bitsandbytes.
How do I use Laguna S 2.1?
Laguna S 2.1 is a large language model for text generation, analysis, and conversation. Use through available interfaces. Enter prompts or questions to get responses. It excels at 70.2% on terminal-bench 2.1 (beats larger closed models).
FEATURED ON CURATEDAI
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