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Parameter descriptions:

Base Model Data
Are datasources for training the base model comprehensively documented and made available? In case a distinction between base (foundation) and end (user) model is not applicable, this mirrors the end model data entries.
End User Model Data
Are datasources for training the model that the end user interacts with comprehensively documented and made available?
Base Model Weights
Are the weights of the base models made freely available? In case a distinction between base (foundation) and end (user) model is not applicable, this mirrors the end model data entries.
End User Model Weights
Are the weights of the model that the end user interacts with made freely available?
Training Code
Is the source code of dataset processing, model training and tuning comprehensively made available?
Code Documentation
Is the source code of datasource processing, model training and tuning comprehensively documented?
Hardware Architecture
Is the hardware architecture used for datasource processing and model training comprehensively documented?
Preprint
Are archived preprint(s) are available that detail all major parts of the system including datasource processing, model training and tuning steps?
Paper
Are peer-reviewed scientific publications available that detail all major parts of the system including datasource processing, model training and tuning steps?
Modelcard
Is a model card available in standardized format that provides comprehensive insight on model architecture, training, fine-tuning, and evaluation?
Datasheet
Is a datasheet as defined in "Datasheets for Datasets" (Gebru et al. 2021) available?
Package
Is a packaged release of the model available on a software repository (e.g. a Python Package Index, Homebrew)?
API and Meta Prompts
Is an API available that provides unrestricted access to the model (other than security and CDN restrictions)? If applicable, this entry also collects information on the use and availability of meta prompts.
Licenses
Is the project fully covered by Open Source Initiative (OSI)-approved licenses, including all data sources and training pipeline code?

Lumo AI

by Proton

Lumo by Proton, advertised as 'open source' and 'based upon open-source language models'.
Text
Full
https://lumo.proton.me/about
Undisclosed
Undisclosed
Undisclosed
Proton, a privacy-aware ISP based in Switzerland.
https://proton.me/blog/lumo-ai
July 2025
Availability
Base Model Data
Training data not disclosed.
End User Model Data
Source code not disclosed. Link on Proton website points to code for web app, not code for LLM.
Base Model Weights
Based model weights not shared or disclosed. Some web app code contains a trace that points to Mistral 7B.
End User Model Weights
Post-trained or instruction-tuned model weights not shared nor disclosed.
Training Code
No source code made available for training or architecture of the model.
Documentation
Code Documentation
No source code, so no documentation.
Hardware Architecture
No details about underlying model provided.
Preprint
No scientific documentation.
Paper
No peer-reviewed scientific documentation.
Modelcard
No model card available. Evaluations, risks, biases, guardrails and safety measures unclear.
Datasheet
No data sheet available. Training data undisclosed.
Access
Package
No package available.
API and Meta Prompts
No API available.
Licenses
License unclear.
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