Ashish Vaswani (@ashVaswani) / X

Pinned

Dec 6, 2025

We are beyond thrilled to share our first flagship models, Rnj-1 base and instruct 8B parameter models. Rnj-1 is the culmination of 10 months of hard work by a phenomenal team, dedicated to advancing American SOTA OSS AI. Lots of wins with Rnj-1. 1. SWE bench performance close

Essential AI

@essential_ai

Dec 6, 2025

Today, we’re excited to introduce Rnj-1, @essential_ai's first open model; a world-class 8B base + instruct pair, built with scientific rigor, intentional design, and a belief that the advancement and equitable distribution of AI depend on building in the open. We bring

Rnj-1 aces telco benchmarks. Congratulations to Farbod Tavakkoli, @GregoryDiamos , @tensorwave , @AMD , and the @essential_ai team!

Essential AI

@essential_ai

Mar 7

Replying to @essential_ai

Rnj-1’s performance is especially good in correctness and abstention in its weight class, which are the two most important metrics for this work.

We’ve made a few updates based on feedback.

Essential AI

@essential_ai

Dec 23, 2025

[1/5] We thank the community for their feedback on Rnj-1. We’d like to announce a few updates to Rnj-1-instruct based on what we heard: - Resolving premature truncation of generations and improved instruction following. - Instructions for 128k context length extrapolation. -