Model · opt-66b
opt-66b
Developer: Meta AI
Availability: available · checked 2026-09-24 · source
Raw record: /data/models/opt-66b.json
Fields
- id
- opt-66b
- identifiers
- huggingface
- facebook/opt-66b
- developer
- Meta AI
- release_date
- 2022-06-23partial · sourcenote: HF repo creation date; may predate or postdate public release.
- weights_status
- open
- availability
- available · checked 2026-09-24 · source
- license
- otherpartial · sourcenote: From HF card metadata (uploader-declared); confirm against the license text.
- architecture
- family
- decoder_only
- note
- family read from config 'architectures': ['OPTForCausalLM'].
- n_layers
- 64recorded · source
- hidden_size
- 9216recorded · source
- n_heads
- 72recorded · source
- vocab_size
- 50272recorded · source
- context_length
- 2048recorded · source
- positional_encoding
- learned_absoluterecorded · sourcenote: Code: OPTLearnedPositionalEmbedding. Same as opt-6-7b.
- training_data
- ~180B tokens: RoBERTa corpus subsets, a subset of the Pile, and PushShift.io Reddit. Same recipe as the 6.7B model.recorded · source
- techniques
- primary_sources
- record_history
- date:2026-09-24 · change:ingested as candidate from HF (facebook/opt-66b@7259969061237fe940036d22bea0fd349e4485e9) · by:ingest_hf.py ·date:2026-09-24 · change:preparer: developer, positional encoding, trained_on set (from paper, matches opt-6-7b) · by:claude (preparer, Sonnet 5) ·date:2026-09-24 · change:preparer cleanup: removed 2 stale flag(s), filled training_data · by:claude (preparer, Sonnet 5) ·date:2026-09-24 · change:reviewed and promoted from staging (1 edge(s) accepted) · by:Wilson Pruitt ·
Parents
Training data
- trained_on → The Pile declared source Paper: trained on ~180B tokens incl. 'a subset of the Pile'; also RoBERTa corpus subsets and PushShift.io Reddit (not recorded as datasets). Same mix as opt-6-7b -- not stated per-size in the card, but the paper describes one training recipe for the whole OPT suite.
Children
No edges recorded.
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