New Open-Weight Models Released: GigaChat-3.1-Ultra and Lightning Variants

The GigaChat team has released open weights for both GigaChat-3.1-Ultra (a 702B mixture-of-experts model) and GigaChat-3.1-Lightning (a 10B variant) under MIT license. These models represent a meaningful expansion of high-quality open-weight options for local deployment, with explicit support for both resource-constrained and well-provisioned environments.

The Ultra variant targets high-resource deployments where maximum capability is prioritised, while Lightning is designed for edge and resource-limited scenarios. Being pretrained from scratch on dedicated hardware, these models offer competitive baselines for practitioners evaluating what's achievable with open-weight alternatives to proprietary systems.

For local LLM practitioners, this release expands the toolkit—particularly the smaller Lightning variant for edge deployment and the MoE architecture of Ultra for those with adequate compute resources. Availability under MIT license also simplifies licensing considerations for commercial applications.

Source: r/LocalLLaMA · Relevance: 8/10