alt.freeweights.qwen / Qwen2-Math-1.5B
From: Qwen <huggingface.co/Qwen>Newsgroups: alt.freeweights.qwenSubject:

Qwen2-Math-1.5B

Date: 2026-11-15Commit: a257a71Signed: 2DC28CC7B26A283B ✓

Text generation model with 1.5B parameters. Safetensors weights, 3.10 GB in all. Published by Qwen under Apache-2.0.

1.5B params3.10GBQwen2-Math-1.5Bsafetensorspermissive
FactsParams1.5BSize3.10 GBFormatssafetensorsTasktext generationLicenseApache-2.0From sourcepermissive
$ fw get Qwen/Qwen2-Math-1.5B
# manifest sha256 76b4b68b0079… · 3.10 GB · 9 files
$ fw verify ./Qwen2-Math-1.5B Qwen/Qwen2-Math-1.5B
From sourceHosted (signed)Qwen/Qwen2-Math-1.5BLast check: 2026-11-15 03:29 UTC

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

Works with

Overview

Size
3.10 GB
Weights
3.09 GB (safetensors)
Parameters
1.5B
Formats
safetensors
Task
text generation
License
Apache-2.0 (permissive)
Files
9, each with a sha256
Publisher
Qwen
Added
2026-11-15
Section
alt.freeweights.qwen
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
BadgeHostLast checkResult
From sourcehuggingface.co2026-11-15 03:29 UTCpassed

Model card

From the publisher at commit a257a71. Shown as plain text with links; images open at the publisher.

Qwen2-Math-1.5B#

Warning.

🚨 Temporarily this model mainly supports English. We will release bilingual (English & Chinese) models soon!

Introduction#

Over the past year, we have dedicated significant effort to researching and enhancing the reasoning capabilities of large language models, with a particular focus on their ability to solve arithmetic and mathematical problems. Today, we are delighted to introduce a serise of math-specific large language models of our Qwen2 series, Qwen2-Math and Qwen2-Math-Instruct-1.5B/7B/72B. Qwen2-Math is a series of specialized math language models built upon the Qwen2 LLMs, which significantly outperforms the mathematical capabilities of open-source models and even closed-source models (e.g., GPT4o). We hope that Qwen2-Math can contribute to the scientific community for solving advanced mathematical problems that require complex, multi-step logical reasoning.

Model Details#

For more details, please refer to our blog post and GitHub repo.

Requirements#

  • transformers>=4.40.0 for Qwen2-Math models. The latest version is recommended.

Warning.

🚨 This is a must because transformers integrated Qwen2 codes since 4.37.0.

For requirements on GPU memory and the respective throughput, see similar results of Qwen2 here.

Important.

Qwen2-Math-1.5B-Instruct is an instruction model for chatting;

Qwen2-Math-1.5B is a base model typically used for completion and few-shot inference, serving as a better starting point for fine-tuning.

Citation#

If you find our work helpful, feel free to give us a citation.

@article{yang2024qwen2,
  title={Qwen2 technical report},
  author={Yang, An and Yang, Baosong and Hui, Binyuan and Zheng, Bo and Yu, Bowen and Zhou, Chang and Li, Chengpeng and Li, Chengyuan and Liu, Dayiheng and Huang, Fei and others},
  journal={arXiv preprint arXiv:2407.10671},
  year={2024}
}

Files

9 files · 3.10 GBWeights 3.09 GB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 9 files with their sha256
FileSizesha256
.gitattributes1.52 KB11ad7efa24975ee4b0c3c3a38ed18737f0658a5f75a0a96787b576a78a023361
README.md2.26 KB91d3b8984cb2c9fc6623c897bba3016e82989677124a244f6e2a309cb6ce81e8
config.json677 B492c302fe38a92f4dcb3f04f2f1dd2bda127ab2b03b53716d8091180aa704770
generation_config.json138 B8c970692323e3ea0e9b8b0a4dca79388d31226e41f83c9fd6014804280ebf6e8
merges.txt1.67 MB599bab54075088774b1733fde865d5bd747cbcc7a547c5bc12610e874e26f5e3
model.safetensors3.09 GB261a99772a14b0925bfbd3a214f681168cf46e6ec7dbe8a05e14b0ebee0462bd
tokenizer.json7.03 MBf7c9b2dba4a296b1aa76c16a34b8225c0c118978400d4bb66bff0902d702f5b8
tokenizer_config.json1.29 KB80d64fccf954f022eb43b7425eb45a133cbb92c76a5f24d4cea6dbe3d45548d9
vocab.json2.78 MBca10d7e9fb3ed18575dd1e277a2579c16d108e32f27439684afa0e10b1440910
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
a257a71410 pinned now2026-11-15 03:29 UTC9 files · 3.10 GB

Use it

$ fw get Qwen/Qwen2-Math-1.5B
# manifest sha256 76b4b68b0079… · 3.10 GB · 9 files
$ fw verify ./Qwen2-Math-1.5B Qwen/Qwen2-Math-1.5B
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/Qwen/Qwen2-Math-1.5B.json --dir ./Qwen2-Math-1.5B $ python3 fw.py verify ./Qwen2-Math-1.5B ./Qwen__Qwen2-Math-1.5B.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download Qwen/Qwen2-Math-1.5B --revision a257a714105a2c4a79c898201cfd907bc9b02138 --local-dir ./Qwen2-Math-1.5B
transformersLoad the weights in Python.
import os os.environ["HF_ENDPOINT"] = "https://freeweights.allternit.com" from transformers import AutoModelForCausalLM, AutoTokenizer tok = AutoTokenizer.from_pretrained("Qwen/Qwen2-Math-1.5B", revision="a257a714105a2c4a79c898201cfd907bc9b02138") model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen2-Math-1.5B", revision="a257a714105a2c4a79c898201cfd907bc9b02138", device_map="auto")
vLLMServe an OpenAI-compatible API.
$ HF_ENDPOINT=https://freeweights.allternit.com vllm serve Qwen/Qwen2-Math-1.5B --revision a257a714105a2c4a79c898201cfd907bc9b02138

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
91d3b8984cb2c9fc6623c897bba3016e82989677124a244f6e2a309cb6ce81e8
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: Qwen <huggingface.co/Qwen>Newsgroups: alt.freeweights.qwenSubject: Qwen2-Math-1.5BDate: 2026-11-15Commit: a257a71Signed: 2DC28CC7B26A283B ✓
Upstream
Qwen/Qwen2-Math-1.5B
Pinned commit
a257a714105a2c4a79c898201cfd907bc9b02138
Manifest
Qwen2-Math-1.5B.json · .minisig
Manifest sha256
76b4b68b0079f484b807113c721976899f8d15827f98e2dc2f7bd332b0afa28e
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:29 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/Qwen/Qwen2-Math-1.5B.json $ curl -O https://freeweights.allternit.com/manifests/Qwen/Qwen2-Math-1.5B.json.minisig $ minisign -Vm Qwen2-Math-1.5B.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 Qwen/Qwen2-Math-1.5B
Open in Freeweights Studio

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

Signed manifest
minisign, key 2DC28CC7B26A283B. Qwen2-Math-1.5B.json. Provenance. Takedown history: none.
From: BAAI <huggingface.co/BAAI>Subject: Aquila-VL-2B-llava-qwen
From: Perciqa <huggingface.co/Perciqa>Subject: Aurora-Code-1
From: BAAI <huggingface.co/BAAI>Subject: bge-reasoner-embed-qwen3-8b-0923
From: amazon <huggingface.co/amazon>Subject: BMOJOF-primed-HQwen3-8B-Instruct
From: nbeerbower <huggingface.co/nbeerbower>Subject: Bubba-Qwen3.6-27B-LoRA
From: bartowski <huggingface.co/bartowski>Subject: bytkim_Qwen3.8-27B-pi-GGUF