The story so far
Weights, every dated article, and repo commits on one rail.
25 repo commits since the weights landed
Teal is the weights (2022-05-11), grey ticks are repo commits.
opt-1.3b
facebook Other out 4 years ago
Text in, text out, 2K tokens of context.
Verified 2026-10-25 Rank #383 in LLMs · score 79.9 method v1 Sources 3 Downloads 30d 68k · #362 of 619 tracked
Can I use it?OtherCustom license; read the repo LICENSE before commercial hostinglicence file2026-10-24
Do people use it?68kdownloads, 30 days#362 of 619 we track · below the median+1 likes, downloads −3% this week189 likesHugging Face2026-10-24
Where it's used
Hugging Face does not say who downloads a model or with what. These are the proxies: API providers listing it, quantized builds, fine-tunes/adapters/merges, and Spaces that load it.
No API provider serves it, so its downloads are people running it themselves: 15 quantized builds and 100 Spaces.
- As a service0no API provider listed
- On own hardware15quantized builds
- Built on28062 fine-tunes · 218 adapters · 0 merges
- In apps100+Hugging Face Spaces
Top Spaces running it: openflamingo/OpenFlamingo ♥ 141 · tomg-group-umd/lm-watermarking ♥ 100 · nvidia/audio-flamingo-2 ♥ 38 · alvanlii/FROMAGe ♥ 27
What people built on it
295 derivatives on the Hub. Which build to run, by runtime: the most downloaded in each class.
295 derivatives on the Hub, most of them adapters
From the Hugging Face model tree; quantized builds in teal, fine-tunes, merges and adapters in greys.
Reference
Everything else, folded: the full tables, every source.
What the card says
1 cited sentence
Summary generated, cited
OPT-1.3b is a decoder-only transformer model designed for text generation tasks.[1]
Generated 2026-10-07 15:09 UTC by parasail-gemma-4-26b-a4b-it; each numeral points at the fact it rests on. Not a verdict.
Use-case evidence
1 use case
What it is good at 1 use case
Labels are evidence, not verdicts: measured a third-party leaderboard row for this model; author-reported a number the model author published in the card or eval files; structural a deterministic signal from the name, config or chat template, or a decision-model estimate. Each chip links to its source. All use cases.
Facts
18 fields
Listed in LLMs
Facts
- Context length is 2,048 tokens (2K). (config.json max_position_embeddings, observed 2026-10-24)
- License: Other (friction: review). Custom license; read the repo LICENSE before commercial hosting. (license file, observed 2026-10-24)
- Created 2022-05-11, last modified 2023-09-15. (HF API, observed 2026-10-24)
| Pipeline tag | text-generation |
|---|---|
| Library | transformers |
| Architectures | OPTForCausalLM |
| Model type | opt |
| Dtype | float16 |
| MoE | no |
| Context length | 2,048 (config.json max_position_embeddings) |
| Languages | en |
| Papers | arXiv:2205.01068, arXiv:2005.14165 |
| License | Other (other) |
| Hub snapshot | 2026-10-25 |
Servability
vLLM · SGLang
Servability
vLLM: supported · OPTForCausalLM · 7050ef881ff0835f6890a47db1859a24c65481d6SGLang: supported · OPTForCausalLM · 773cb938fe9484a8f7e7e46fb1b1fe96412c59ed
vLLM registry (7050ef881ff0835f6890a47db1859a24c65481d6) · SGLang registry (773cb938fe9484a8f7e7e46fb1b1fe96412c59ed) · Matched by architecture class name against each project's registry on main; 'supported' means the architecture is registered, not that this checkpoint was tested.
All variants
40 variants
Lineage
finetune: 62adapter: 218quantized: 15
Top variants (40 shown, ranked by downloads)
Repository changelog
25 commits
Repository changelog 25 commits
| Date | Commit | SHA |
|---|---|---|
| 2023-09-15 | Update README.md (#28) | 3f5c25d |
| 2023-01-24 | Adding generation config file(s) | 8c7b107 |
| 2022-06-22 | Update README.md (#6) | aa6ac1e |
| 2022-06-21 | correct checkpoints see: https://github.com/facebookresearch/metaseq/pull/164 | e8c4fe5 |
| 2022-06-16 | Update TF weights (#3) | c8fd423 |
| 2022-06-03 | Add flax_weights | f39e497 |
| 2022-06-03 | Add tf_weights | cff2d3d |
| 2022-06-03 | Revert config modifications | bf21b09 |
| 2022-06-03 | Update README.md | 5ede9d0 |
| 2022-06-03 | add model | 6a853c0 |
| 2022-06-03 | add model | b45c935 |
| 2022-05-26 | Change BOS token from 0 to 2 as BOS token is equal to EOS for OPT. See: https://github.com/huggingface/transformers/issues/17431 (#1) | 80fcb57 |
| 2022-05-25 | Update tokenizer_config.json | fdb6055 |
| 2022-05-16 | Set commercial attribute to False | f141145 |
| 2022-05-16 | Update README | d2f35d5 |
| 2022-05-13 | Temporarily deactivate the inference API | 53f0416 |
| 2022-05-13 | Update config.json | cf57a76 |
| 2022-05-12 | Update README.md | 337a855 |
| 2022-05-12 | Update README.md | 7a0f2c1 |
| 2022-05-12 | Update README.md | 60a8187 |
| 2022-05-12 | Create README.md | c71c648 |
| 2022-05-12 | finish | c57bfbf |
| 2022-05-12 | Update config.json | 75cb04a |
| 2022-05-11 | add model | 4c77920 |
| 2022-05-11 | initial commit | 06c8705 |
Papers
2 papers
Papers 2
arXiv links found in the model card and its tags. "Peer-reviewed" is shown only with evidence: a published venue in OpenAlex (measured) or the authors' own journal reference on arXiv (reported).
- Tom B. Brown, Benjamin Mann, Nick Ryder +28 · 2020-05-28 · neural information processing systems · PDF · HF paper page (21 upvotes) · evidence
Similar models
3 models
Similar models
- gpt-j-6b same task (text-generation), permissive license
- DialoGPT-medium same task (text-generation), permissive license
- Qwen-VL-Chat same task (text-generation)
Sources
3 sources
Sources
Hub snapshot: 2026-10-25 · HF API: 2026-10-24 21:38 UTC · Providers: 2026-10-24 21:44 UTC · Articles: 2026-10-24 21:46 UTC · Summary: 2026-10-07 15:09 UTC · Last verified 2026-10-25
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