Palmyra
Palmyra is a model family from Writer13, with 2 assessed releases in this catalog. Licenses and availability are recorded for each release, not for the family; its releases use the Apache License 2.0.
Palmyra is Writer's family of language models. The Palmyra X models (currently X4, X5, and X6) are offered through Writer's platform and API. Writer has also published Palmyra models on Hugging Face: Palmyra-X-4.3-73B and domain models for medicine and finance under its non-commercial open model license, and the small Palmyra-mini models (September 2025) under Apache 2.0.21312161567
- Website: Writer models page (external site: writer.com)
- Documentation: Writer developer documentation (models) (external site: dev.writer.com)
- Model hub: Writer on Hugging Face (external site: huggingface.co)
- Release notes: Palmyra-mini announcement (Hugging Face blog) (external site: huggingface.co)
On AI on Hugging Face: Writer/Palmyra-Fin-70B-32K, Writer/Palmyra-Med-70B-32K, nvidia/OpenReasoning-Nemotron-1.5B, Writer/palmyra-mini-thinking-a, Writer/Palmyra-X-4.3-73B
Releases assessed
| Release | Weights | Tier (USASI rubric v0.2) | License | Released |
|---|---|---|---|---|
| Palmyra-mini | Weights: Public | Model-disclosure tier (USASI rubric v0.2): Open-weight | Apache-2.0 | Sep 11, 2025 |
| Palmyra-mini-thinking-b | Weights: Public | Model-disclosure tier (USASI rubric v0.2): Open-weight | Apache-2.0 | Sep 11, 2025 |
What it is useful for
Organization context
Provenance and derivatives
The open Palmyra-mini models are fine-tunes of other developers' models: palmyra-mini and palmyra-mini-thinking-a are fine-tuned from Qwen2.5-1.5B (Alibaba Cloud's Qwen family), and palmyra-mini-thinking-b from NVIDIA's OpenReasoning-Nemotron-1.5B. The model card for Palmyra-Med-70B-32K says it builds on Writer's Palmyra-Med-70B.8910111617
- Derived from: Qwen2.5-1.5B (external site: huggingface.co) — Base of palmyra-mini and palmyra-mini-thinking-a.
- Derived from: OpenReasoning-Nemotron-1.5B (external site: huggingface.co) — Base of palmyra-mini-thinking-b; NVIDIA's card says it derives from Qwen2.5-1.5B.
In the news
WRITER releases Palmyra X6, post-trained on GLM 5.2, alongside WRITER Agent upgrades
WRITER announced Palmyra X6 on August 13, 2026 as its new flagship model, aimed at marketing and revenue workflows and designed to run inside the WRITER Agent harness. The announcement says X6 was post-trained on top of GLM 5.2, an open-weight model. The same release adds WRITER Agent features including batch execution, sub-agent delegation, support for enabling models from providers such as Anthropic and OpenAI, and bring-your-own-model support for Microsoft Azure, AWS Bedrock, and NVIDIA NIM. The announcement does not say whether Palmyra X6 weights are released. USASI has not tested Palmyra X6.
U.S. eligibility
Sources
This listing is not an endorsement, a safety assessment, or a federal approval.
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APA style
USASI. (2026, September 29). Palmyra. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/palmyra/
BibTeX
@misc{usasi_palmyra,
author = {{USASI}},
title = {Palmyra},
year = {2026},
month = sep,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/palmyra/}},
note = {United States of America Superintelligence. Last updated 2026-09-29}
}The date is when this page was last updated. Add the date you read it if your style needs one.
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