From:

allenai <huggingface.co/allenai>Newsgroups: alt.freeweights.olmoSubject:

BAR-5x7B

Date: 2026-11-15Commit: 2e1b57dSigned: 2DC28CC7B26A283B ✓

Text generation model with 24.6B parameters. Safetensors weights, 49.2 GB in all. Published by allenai under Apache-2.0.

24.6B params

49.2GBBAR-5x7Bsafetensorspermissive

FactsParams24.6BSize49.2 GBFormatssafetensorsTasktext generationLicenseApache-2.0From sourcepermissive

$ fw get allenai/BAR-5x7B
# manifest sha256 d6fc298da482… · 49.2 GB · 21 files
$ fw verify ./BAR-5x7B allenai/BAR-5x7B

From sourceHosted (signed)allenai/BAR-5x7BLast check: 2026-11-15 03:52 UTC

Run at home Get help

Get help: custom fine-tune or private deploy. We review your setup before we quote.

Works with

Run24 Fine-tune29 Convert15 Evaluate13 Scan13 Apps58

Runs with

Ranked by fit to this model (safetensors), then by GitHub stars.

vLLM exo Text Generation WebUI

SGLang MLC LLM KTransformers LMCache Xinference LMDeploy mistral.rs Mooncake FlashInfer

Show all 24

AIBrix fastllm ExLlamaV3

Transformers LocalAI tinygrad gpu-unlock Triton Inference Server BentoML CTranslate2 ExLlamaV2 LitServe

Convert with

mergekit TensorRT Model Optimizer

LLM Compressor Neural Compressor AutoRound AQLM GPTQModel ONNX Core ML Tools ExecuTorch

Show all 15

Evaluate with

Opik DeepEval Ragas lm-evaluation-harness OpenCompass SWE-bench

simple-evals TruLens HELM

LightEval

Evaluate Weave

Show all 13

Autoevals

Scan with

promptfoo garak Guardrails NeMo Guardrails Giskard DeepTeam AI Fairness 360 Fairlearn Detoxify MCP Scanner AgentDojo ModelScan

Show all 13

picklescan

Overview Model card Files Use it License Provenance Model tree

Overview

Size: 49.2 GB
Weights: 49.2 GB (safetensors)
Parameters: 24.6B
Formats: safetensors
Task: text generation
License: Apache-2.0 (permissive)
Files: 21, each with a sha256
Publisher: allenai
Added: 2026-11-15
Section: alt.freeweights.olmo

Lineage

Original release from the publisher.

Where these bytes come from

Publisher at the pinned commit→You

Sources are tried in order. A file counts only when its size and sha256 match the manifest. Sources are checked when you ask for them, not on a timer.

Sources

Badge	Host	Last check	Result
From source	huggingface.co	2026-11-15 03:52 UTC	passed

Model card

From the publisher at commit 2e1b57d. Shown as plain text with links; images open at the publisher.

BAR#

BAR (Branch-Adapt-Route) is a modular post-training approach that extends a fully post-trained language model with new domain capabilities via independently trained Mixture-of-Experts. Rather than retraining a single model across all domains, BAR trains independent domain experts — each through its own mid-training, supervised finetuning (SFT), and reinforcement learning pipeline — and composes them into a unified model via an MoE architecture with lightweight router training.

All BAR models are built on top of Olmo 2 7B.

Models in the BAR suite#

BAR-7B — initial fully post-trained 7B dense model (the starting point)
BAR-2x7B-Base — 2-expert MoE (anchor + base pre-trained model)
BAR-2x7B-Math-SFT — math expert after mid-training and SFT
BAR-2x7B-Math — math expert after mid-training + SFT + RLVR
BAR-2x7B-Code-SFT — code expert after mid-training and SFT
BAR-2x7B-Code — code expert after mid-training + SFT + RLVR
BAR-2x7B-Tool-Use — tool use expert (SFT only)
BAR-2x7B-Safety — safety expert (SFT only)
BAR-5x7B — final 5-expert MoE combining all experts with a trained router

Results#

Model	Overall	Knowledge	Reasoning	Chat	Math	Code	Tool Use	Safety
BAR-7B	31.3	28.5	29.8	48.9	23.6	11.8	25.3	51.3
BAR-2x7B-Math-SFT	36.8	28.8	31.2	40.9	41.9	20.5	21.6	72.7
BAR-2x7B-Math	39.3	29.0	30.8	42.5	55.8	22.1	19.8	75.4
BAR-2x7B-Code-SFT	38.5	28.8	29.1	40.1	25.5	49.3	19.7	77.3
BAR-2x7B-Code	38.8	28.5	29.2	41.0	26.9	50.4	19.8	75.3
BAR-2x7B-Tool-Use	37.2	28.5	28.7	39.3	21.8	16.9	46.4	79.1
BAR-2x7B-Safety	35.6	28.7	28.8	38.1	22.4	15.7	21.1	94.6
BAR-5x7B	49.1	28.4	30.8	38.7	56.2	49.9	45.6	94.0

Scores are unweighted averages across benchmarks within each category. See the paper for per-benchmark results and full evaluation details.

License#

This model is licensed under Apache 2.0. It is intended for research and educational use in accordance with Ai2's Responsible Use Guidelines.

Files

21 files · 49.2 GBWeights 49.2 GB (safetensors). Sizes and sha256 from the signed manifest.

Show all 21 files with their sha256

File	Size	sha256
.gitattributes	1.52 KB	11ad7efa24975ee4b0c3c3a38ed18737f0658a5f75a0a96787b576a78a023361
README.md	2.37 KB	4f81343f9be924e0a3506f53cebbc8b35094f4f857d0f89c681a4a7e3377c4d7
chat_template.jinja	1.65 KB	1fd2eac6d6f73da1f9e30d9b0511f91a70cc8455ffffe48d20f48e77357f5029
config.json	767 B	c8626a748f4725fcc92f70653b18309cc06ad36a95eec7ff6baa88e943376be2
generation_config.json	140 B	98e184d7f8432c9fc3c1993508bacf016f456abcb205b072576148bc2c793330
merges.txt	917 KB	b6fe424e334903f7fb84d3a106d9730455f4744b9fe3c21ee136d97a00e72502
model-00001-of-00010.safetensors	4.92 GB	3f9cc4b8e2dd99b489c64c3e706c3bcafa89af03bc264cf6ddb37cf0ec2b405b
model-00002-of-00010.safetensors	4.96 GB	038e5fa6f618ce8c14a428c2ca65cffb4915a7a1e2572e85f9e2c9fbbf81adc1
model-00003-of-00010.safetensors	4.91 GB	ccfa3a9335df69126a7c82baedeef39c687cec0057aa26d333625f44aded9672
model-00004-of-00010.safetensors	4.91 GB	5558b58a804a12d59ba205219f912252597c6628cec73baf2ac16ab083148d4c
model-00005-of-00010.safetensors	4.98 GB	d3100bc319f0b416b348e739a6debe2565476610c529fa710a6d4e05227a3e94
model-00006-of-00010.safetensors	4.98 GB	899bbd487da78e30875101c497d7d71c98438c929f85180e6b792a92f74e8d68
model-00007-of-00010.safetensors	4.91 GB	9359012bfd0e0d399b59a8db9c5da545656df8e3c673a0812dc9673d8723c1f3
model-00008-of-00010.safetensors	4.98 GB	3f2b1f9524020e7c0716d2b8b5a56a0a38ab7d00e66d4596d7c12853373d9d35
model-00009-of-00010.safetensors	4.98 GB	d7c5ef5b6d32fb0ef893e245a9e0dc824fcdd8067f0dbcf8e7c772f0f703a0b9
model-00010-of-00010.safetensors	4.70 GB	b71dd5e6847746a2b0c73e74e848dc51f6e7fefdae8da56503dd733f95ddb6f8
model.safetensors.index.json	67.2 KB	b8ff71bd6d1454e3ac52a7ac09444767bc69a98ed190159793ab99e01695fb38
special_tokens_map.json	581 B	78afb564e81264029b25f9caf24bda2521d5bdaeff5cd3fdbc01d3da2e8ce2f2
tokenizer.json	7.14 MB	7738a25c46a6043a0e2e605138851baa450269ce9d800af6ca9bf6192e45510c
tokenizer_config.json	4.32 KB	f7a2753a4ff30657e452c8fef02b9a99a3b900ceb4c65a1e3fbea6a3bfab07a6
vocab.json	1.61 MB	d8eb44d0d51f5e39c9b14825ca8bd10a2500f99c438ca81d4462f0263acd3b53

VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.

Upstream commit	Date	Contents
2e1b57d2e2 pinned now	2026-11-15 03:52 UTC	21 files · 49.2 GB

Use it

$ fw get allenai/BAR-5x7B
# manifest sha256 d6fc298da482… · 49.2 GB · 21 files
$ fw verify ./BAR-5x7B allenai/BAR-5x7B

fw.pyChecks the signature and every sha256, tries each source in order, resumes.

$ python3 fw.py get https://freeweights.allternit.com/manifests/allenai/BAR-5x7B.json --dir ./BAR-5x7B
$ python3 fw.py verify ./BAR-5x7B ./allenai__BAR-5x7B.json

hfThe Hugging Face CLI with one setting. Same repo id.

$ HF_ENDPOINT=https://freeweights.allternit.com hf download allenai/BAR-5x7B --revision 2e1b57d2e22fbf9c1a08a71298b53abcfdf827ad --local-dir ./BAR-5x7B

transformersLoad the weights in Python.

import os
os.environ["HF_ENDPOINT"] = "https://freeweights.allternit.com"
from transformers import AutoModelForCausalLM, AutoTokenizer
tok = AutoTokenizer.from_pretrained("allenai/BAR-5x7B", revision="2e1b57d2e22fbf9c1a08a71298b53abcfdf827ad")
model = AutoModelForCausalLM.from_pretrained("allenai/BAR-5x7B", revision="2e1b57d2e22fbf9c1a08a71298b53abcfdf827ad", device_map="auto")

vLLMServe an OpenAI-compatible API.

$ HF_ENDPOINT=https://freeweights.allternit.com vllm serve allenai/BAR-5x7B --revision 2e1b57d2e22fbf9c1a08a71298b53abcfdf827ad

Run at home

License

Name: Apache License 2.0
Id: Apache-2.0
Class: Permissive
Redistribution: yes
Listing: Hosted (signed)
Decided: License as declared by the publisher. No person read it. 2026-11-15
Text in: README.md
Text sha256: 4f81343f9be924e0a3506f53cebbc8b35094f4f857d0f89c681a4a7e3377c4d7
Terms gate: No extra terms beyond the license.

Read the license text

Licenses are checked against the license table. A custom license passes only after a person reads it.

Provenance

From:

allenai <huggingface.co/allenai>Newsgroups: alt.freeweights.olmoSubject: BAR-5x7BDate: 2026-11-15Commit: 2e1b57dSigned: 2DC28CC7B26A283B ✓

Upstream: allenai/BAR-5x7B
Pinned commit: 2e1b57d2e22fbf9c1a08a71298b53abcfdf827ad
Manifest: BAR-5x7B.json · .minisig
Manifest sha256: d6fc298da482f62b35de33e758d6c107123699820f8a7d0a5c1b3183abbd4f8c
Signature: minisign, Ed25519, key 2DC28CC7B26A283B
Created: 2026-11-15 03:52 UTC
Generator: freeweights-manifest/0.1.0
Takedowns: None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/allenai/BAR-5x7B.json
$ curl -O https://freeweights.allternit.com/manifests/allenai/BAR-5x7B.json.minisig
$ minisign -Vm BAR-5x7B.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq
$ shasum -a 256 <file>   # compare with the Files tab

A manifest whose signature fails must be rejected. A file whose size or sha256 does not match must be discarded. Verify a download

Model tree

No related models in this catalog.Nothing here lists this model as its parent, and it names no parent.

Get it

Download

$ HF_ENDPOINT=https://freeweights.allternit.com hf download allenai/BAR-5x7B

Open in Freeweights Studio

Pull, verify and run it in the Allternit app on Desktop, web or phone.

Signed manifest

minisign, key 2DC28CC7B26A283B. BAR-5x7B.json. Provenance. Takedown history: none.

Source

huggingface.co/allenai/BAR-5x7B

Related models

All of alt.freeweights.olmo →

From: bartowski <huggingface.co/bartowski>Subject: allenai_Olmo-3-7B-Instruct-GGUF

From: bartowski <huggingface.co/bartowski>Subject: allenai_Olmo-3-7B-Think-GGUF

From: bartowski <huggingface.co/bartowski>Subject: allenai_Olmo-3.1-32B-Instruct-GGUF

From: bartowski <huggingface.co/bartowski>Subject: allenai_Olmo-3.1-32B-Think-GGUF

From: bartowski <huggingface.co/bartowski>Subject: allenai_olmOCR-2-7B-1025-GGUF

From: bartowski <huggingface.co/bartowski>Subject: allenai_olmOCR-7B-0225-preview-GGUF

BAR-5x7B

Works with

Runs with

Fine-tune with

Convert with

Evaluate with

Scan with

Works with

Overview

Model card

BAR#

Models in the BAR suite#

Results#

License#

Files

Use it

License

Provenance

How to verify

Model tree

Related models