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Introducing Laguna S 2.1
Today we're releasing Laguna S 2.1, a significant step forward in our development of models that pursue longer horizon work and make effective use of reasoning.
Poolside team
Laguna S 2.1
The most capable agentic coding model in its weight class by a wide margin.
Specs
Model
- Family
- Laguna
- Variant
- S-2.1
- Parameters
- 118B total, ~8B active (MoE)
- Weights
- Open
- License
- OpenMDW-1.1
Limits
- Context
- 1,048,576 tokens
- Max output
- 32,768 tokens
Modalities
- Input
- Text
- Output
- Text
Pricing
- Input
- Free
- Output
- Free
- Cache read
- Free
- Cache write
- Free
Capabilities
- Reasoning
- Yes
- Reasoning control
- On / off
- Tool calling
- Yes
- Attachments
- No
Dates
- Released
- 21 Jul 2026
Articles
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