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alt.freeweights.text / snowball-67b-a2b-rl-r2egym-newstack-step36
From: laion <huggingface.co/laion>Newsgroups: alt.freeweights.textSubject:

snowball-67b-a2b-rl-r2egym-newstack-step36

Date: 2026-11-15Commit: c4527bbSigned: 2DC28CC7B26A283B ✓

Model with 67.1B parameters. Safetensors weights, 134 GB in all. Published by laion under Apache-2.0.

67.1B params134GBsnowball-67b-a2b-rl-r2egym-newstack-step36safetensorspermissive
FactsParams67.1BSize134 GBFormatssafetensorsTasknot taggedLicenseApache-2.0From sourcepermissive
$ fw get laion/snowball-67b-a2b-rl-r2egym-newstack-step36
# manifest sha256 7650472f0e85… · 134 GB · 47 files
$ fw verify ./snowball-67b-a2b-rl-r2egym-newstack-step36 laion/snowball-67b-a2b-rl-r2egym-newstack-step36
From sourceHosted (signed)laion/snowball-67b-a2b-rl-r2egym-newstack-step36Last check: 2026-11-15 04:19 UTC
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Get help: custom fine-tune or private deploy. We review your setup before we quote.

Fine-tune of snowball-67b-a2b-sft-s3-nemotron-terminal-step1888.

Works with

Run8Fine-tune7Convert8Scan2

Runs with

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

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OverviewModel cardFilesUse itLicenseProvenanceModel tree

Overview

Size
134 GB
Weights
134 GB (safetensors)
Parameters
67.1B
Formats
safetensors
Task
not tagged
License
Apache-2.0 (permissive)
Files
47, each with a sha256
Publisher
laion
Added
2026-11-15
Section
alt.freeweights.text
Lineage

Original release from the publisher.

Base model: laion/snowball-67b-a2b-sft-s3-nemotron-terminal-step1888

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 04:19 UTCpassed

Model card

From the publisher at commit c4527bb. Shown as plain text with links; images open at the publisher.

Snowball 67B-A2B, R2E-Gym RL, new stack, step 36#

RL on the migrated marin stack (harbor + MarinSkyRL, 2026-09-11/12), 1,003-task tt-v2-train curriculum pool, hidden tests, no KL term. Not probed on held-out; training curve flat from step 24. The resume point of the 2026-09-12 continuation.

Base: laion/snowball-67b-a2b-sft-s3-nemotron-terminal-step1888 (Snowball 67B-A2B, GrugMoe). Training: RLOO-style on-policy RL (sequence-mean loss, staleness 2, groups of 8, batch 64 prompts, lr 5e-7, bf16 stochastic rounding) on R2E-Gym tasks with the terminus-2 terminal agent, 49,152-token prompt / 16,384-token generation. Held-out numbers are pass@1 at 8 attempts on the tt-v2 val441 split (150 same-repo, 115 unseen-repo, 176 held-out), paired against the base model.

Files: HF-layout safetensors export of the policy weights (39 shards), config and tokenizer. Serve with the GrugMoe vLLM fork; the EAGLE-3 draft laion/snowball-64k-eagle3-draft-r2egym gives ~1.5x decode on this family.

Files

47 files · 134 GBWeights 134 GB (safetensors). Sizes and sha256 from the signed manifest.
Show all 47 files with their sha256
FileSizesha256
.gitattributes1.57 KB34448b82c17d60fec9b65b1f093c115ddbaadc04beb1b0140b6bfed2e012a930
README.md1.13 KB1f3d823f249a9fc0a387e17c98a2cf68be53f1cca1551185c7ef4de28a94a486
chat_template.jinja5.11 KB414d8559d363292c811e624fe2db04d52647ca5bd89acc53e98bd4c4f371302a
config.json1.06 KBf1d693de07452ccee0855700642ef903efdf1a8e321bdc1436806bf7d393a8d2
generation_config.json82 B838158c033c183c9c7e254c03b289d2f86a3cfe1e0878cb9bbf3b6a0c1a18ea8
model-00001-of-00039.safetensors4.05 GBac1527f447c190d4091dc0a30a050eaebeef16819af24dc7c295c46ba3ccb20d
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model.safetensors.index.json43.0 KB99cf93a0ff8f7f072a2294f8531cfcb8b11d442e19565735fc37739c3fae7e01
tokenizer.json17.2 MB881c9c36c359e1617afef6f7583403567931b7b4f43f6552d2b2155a131650a2
tokenizer_config.json5.62 KB17f4d1f71641d66c0ba0af2ee7a437961b5c30f45109ec526365693557028b25
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
c4527bb803 pinned now2026-11-15 04:19 UTC47 files · 134 GB

Use it

$ fw get laion/snowball-67b-a2b-rl-r2egym-newstack-step36
# manifest sha256 7650472f0e85… · 134 GB · 47 files
$ fw verify ./snowball-67b-a2b-rl-r2egym-newstack-step36 laion/snowball-67b-a2b-rl-r2egym-newstack-step36
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/laion/snowball-67b-a2b-rl-r2egym-newstack-step36.json --dir ./snowball-67b-a2b-rl-r2egym-newstack-step36 $ python3 fw.py verify ./snowball-67b-a2b-rl-r2egym-newstack-step36 ./laion__snowball-67b-a2b-rl-r2egym-newstack-step36.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download laion/snowball-67b-a2b-rl-r2egym-newstack-step36 --revision c4527bb803f9cc3906b19a60e3c4b3365ce0de75 --local-dir ./snowball-67b-a2b-rl-r2egym-newstack-step36

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
1f3d823f249a9fc0a387e17c98a2cf68be53f1cca1551185c7ef4de28a94a486
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: laion <huggingface.co/laion>Newsgroups: alt.freeweights.textSubject: snowball-67b-a2b-rl-r2egym-newstack-step36Date: 2026-11-15Commit: c4527bbSigned: 2DC28CC7B26A283B ✓
Upstream
laion/snowball-67b-a2b-rl-r2egym-newstack-step36
Pinned commit
c4527bb803f9cc3906b19a60e3c4b3365ce0de75
Manifest
snowball-67b-a2b-rl-r2egym-newstack-step36.json · .minisig
Manifest sha256
7650472f0e8584cc28eadfdbe84fc26ee69252e7ab21d2fef5ce4449250786be
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 04:19 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/laion/snowball-67b-a2b-rl-r2egym-newstack-step36.json $ curl -O https://freeweights.allternit.com/manifests/laion/snowball-67b-a2b-rl-r2egym-newstack-step36.json.minisig $ minisign -Vm snowball-67b-a2b-rl-r2egym-newstack-step36.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

Parent

laion/snowball-67b-a2b-sft-s3-nemotron-terminal-step1888 · this model is a finetune of it

No model in the catalog names this one as its parent.

Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download laion/snowball-67b-a2b-rl-r2egym-newstack-step36
Open in Freeweights Studio

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

Signed manifest
minisign, key 2DC28CC7B26A283B. snowball-67b-a2b-rl-r2egym-newstack-step36.json. Provenance. Takedown history: none.
Source
huggingface.co/laion/snowball-67b-a2b-rl-r2egym-newstack-step36

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