# DeepReinforce releases MIT-licensed Ornith 1.5 model family

_Thursday, August 20, 2026 at 5:03 AM EDT · AI · Latest · Tier 2 — Notable_

![DeepReinforce releases MIT-licensed Ornith 1.5 model family — Primary](https://officechai.com/wp-content/uploads/2026/08/image-37.png)

DeepReinforce has released its Ornith-1.5 open-weight model family in 9B, 35B and 397B parameter versions under the MIT license, according to OfficeChai.

The company says the family follows Ornith-1.0, released in June, and includes quantized variants for several deployment formats. DeepReinforce reports that the 397B model scored 86.1 on Terminal-Bench 2.1 and 86 on SWE-Bench Verified, while also reporting a lower Frontier-Bench v0.1 score than the Claude Opus 4.8 comparison cited in the article.

The company says the models use a self-improvement training loop that generates tasks, scaffolds and reinforcement-learning rollouts.

## Sources

- [officechai.com](https://officechai.com/ai/deepreinforce-releases-open-source-orinth-1-5-family-of-models-with-solid-benchmarks-and-mit-license/)

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Retrieved: 2026-08-20T09:44:19.015Z
Publisher: Tech & Business (techandbusiness.org)