esm-1b safetensors download (2.61 GB) | Hugging Bay

Q: What is this model?

facebook/esm-1b is an open-weights language model for masked-language modeling published by facebook, added to Hugging Bay Sep 18, 2026. Model from Hugging Face for fill mask: facebook/esm-1b · transformers

Q: Can I use it commercially?

License: unknown. Check the upstream license text or ask the model author before commercial use.

Q: How big is it?

facebook/esm-1b has 1B parameters. Hosted here: 5 files, 2.61 GB. Full repo upstream: 5.22 GB. The recommended download, model.safetensors, is 2.61 GB.

Q: What can I download here?

Hosted here: 5 files, 2.61 GB. Full repo upstream: 5.22 GB.

Q: File pattern scans

Automated file-pattern scans flagged nothing; not a safety guarantee. 5 hosted files carry a published SHA-256 you can re-hash. The machine-readable verdict is at /api/artifacts/hf-model-facebook-esm-1b/safety on Hugging Bay.

Q: Will facebook/esm-1b run on my computer?

We can’t check the fit; we don’t know your machine. We don’t have your machine’s specs, so no check ran and no verdict is shown. Answer two quick questions and we’ll estimate, from the memory you tell us, whether it fits your machine. Or skip it; you can still download; fit isn’t checked.

facebook

esm-1b

Can I run esm-1b on my computer?

It depends on your memory, processor, file format and runtime. Hugging Bay offers 5 hosted files; check the file list for the exact selection. A file-size fit is an estimate, not a successful run or speed promise. Read the license before use.

esm-1b is an open-weights language model for masked-language modeling. Model weights are learned parameters; a runtime loads them. Hosting files does not prove that a complete model runs.

As of the availability check on 2026-10-22.

Recorded SHA-256 for model.safetensors: fb41c09e9d19d9e95a2dc699af5f63692a1ac785be661d83625c97370ae745b6. File evidence · Machine-readable facts · Run evidence and any recorded receipts · Proof Lab measurement policy. A checksum verifies byte identity, not safety; this answer asserts no measured runtime result.

Updated 2026-10-21 · Page text: As of 2026-10-21 · Content revision

Model metadata: As of 2026-09-18 at the model source. Popularity counters are source-reported, not measured by Hugging Bay. Availability checked 2026-10-22.

facebook/esm-1b

Model details

masked-language modelingLicense: unknownSHA-256 recorded for 6 of 8 filessafetensors · BIN

Content controls: not assessed.

The catalog lists this model for filling in missing words in text. Catalog sources: task, cardMetadata.pipelineTag.

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Your next step

Use it from code

This Python snippet downloads the selected file. Running the model needs its own library and setup.

from urllib.request import urlretrieve

urlretrieve(
    "https://huggingbay.xyz/api/downloads/hf-model-facebook-esm-1b/model.safetensors",
    "model.safetensors",
)

Other ways

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5 hosted of 8 listed · Hashes recorded. Date not recorded.

Selected downloadmodel.safetensors2.61 GB · 1 file Download · 2.61 GB (1 file)

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