LLM Reference

Open-Assistant Models by OpenAssistant

OpenAssistantApache 2.0Open source
1 model2023Up to 2k ctx

Last refreshed 2026-05-19. Next refresh: weekly.

Details

ResearcherOpenAssistant
LicenseApache 2.0OSI-approved
Commercial useCommercial use: permitted
Models1
Released2023
Max context2k

About

OpenAssistant, developed by LAION, is a family of open-source large language models (LLMs) designed to serve as accessible, powerful chat-based assistants akin to models like ChatGPT and GPT-4. The initiative focused on broad accessibility, including commercial use, setting it apart from other open-source LLMs with limited licenses. These models were trained on a vast dataset gathered through a community effort with over 13,000 volunteers contributing more than 600,000 interactions. The training regimen included supervised fine-tuning and reinforcement learning from human feedback, enhancing the models' ability to follow instructions and be helpful. Although the project has ended, the models and datasets remain available for public use. Some models, however, might be based on more restricted models like LLaMA 67810.

Decision facts

Best fit
General model comparison
Capability starting point
Open-Assistant SFT-1 12B with 2k context
Lowest tracked input
Not tracked
Closest related family
Claude 3

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

1 in view

Use when the workload needs 2k context and 12B parameters.

2023-042k context12B parameters

Release Timeline

1 release group
2023-04
1 current
Open-Assistant SFT-1 12B
2k context12B parameters
Current

Specifications(1 models)

Open-Assistant model specifications comparison
ModelReleasedContextParameters
Open-Assistant SFT-1 12B2023-042k12B

Available From(1 provider)