Logits Sigma-1 / Duo decision model
Logits Sigma-1 and Duo return option probabilities with open weights. Read their public-suite selection limits, GPU setups and data disclosures.
By Logits · Weights upload: 7 Nov 2026
Two text decision packages. Sigma-1 merges a LoRA into Gemma 4 31B and reads option-code logits. Duo averages option probabilities from a modified KnowLine 31B and d3-ultra, both in FP8. Above 50,000 request characters, Duo uses its first member alone.
Quick answers
What is Logits Sigma-1 / Duo by Logits?
Logits Sigma-1 / Duo: Two text decision packages.
Who makes Logits Sigma-1 / Duo?
Are Logits Sigma-1 / Duo's weights open?
Logits Sigma-1 / Duo: Public weights and Decision Index engines; one 96 GB GPU in the reported setups Licence: Apache-2.0 code and weights; training sources include share-alike, copyleft-labelled and possibly non-commercial data
Facts
- Inputs
- Text state and typed choice or yes/no questions
- Licence
- Apache-2.0 code and weights; training sources include share-alike, copyleft-labelled and possibly non-commercial data
- Access
- Public weights and Decision Index engines; one 96 GB GPU in the reported setups
- Limits
- Sigma-1 refuses prompts above 131,072 tokens or menus above 255 options
Claims and sources
- Logits reports a public Decision Index 0.3 score of 67.1 for Sigma-1 over 140,178 scoreable requests. Model selection used a subset of the public suite, making these scores partly in-sample. No private Full score is supplied. vendor reportedsource
- Logits reports a public Decision Index 0.3 score of 72.93 for Duo over 140,178 scoreable requests. Model selection used a subset of the public suite, making these scores partly in-sample. No private Full score is supplied. vendor reportedsource
- On one RTX PRO 6000, the maker reports median/mean request times of 122/356 ms for Sigma-1. vendor reportedsource
- On one RTX PRO 6000, the maker reports median/mean request times of 293/859 ms for Duo, with GPU memory peaking at 87,891 MiB. Its published training disclosure includes source-licence restrictions that the package licence does not settle. vendor reportedsource
Links
Source: Sigma-1 card and weights → Source: Duo card and weights → Source: Duo source-data disclosure →
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