{
  "id": "vicuna-13b-v1-5",
  "name": "vicuna-13b-v1.5",
  "identifiers": {
    "huggingface": [
      "lmsys/vicuna-13b-v1.5"
    ]
  },
  "developer": "LMSYS",
  "release_date": {
    "value": "2023-08-01",
    "source": "https://github.com/lm-sys/FastChat/blob/main/docs/vicuna_weights_version.md",
    "status": "recorded"
  },
  "weights_status": "open",
  "availability": {
    "value": "available",
    "checked": "2026-09-24",
    "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5"
  },
  "license": {
    "value": "llama2",
    "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/blob/c8327bf999adbd2efe2e75f6509fa01436100dc2/README.md",
    "status": "partial",
    "note": "From HF card metadata (uploader-declared); confirm against the license text."
  },
  "architecture": {
    "family": "decoder_only",
    "note": "family read from config 'architectures': ['LlamaForCausalLM'].",
    "n_layers": {
      "value": 40,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "hidden_size": {
      "value": 5120,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "n_heads": {
      "value": 40,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "vocab_size": {
      "value": 32000,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "context_length": {
      "value": 4096,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "n_kv_heads": {
      "value": 40,
      "source": "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json",
      "status": "recorded"
    },
    "positional_encoding": {
      "value": null,
      "status": "not_recorded"
    }
  },
  "training_data": {
    "value": "~125K ShareGPT conversations (see the shargpt-vicuna trained_on edge); listed here for completeness since the base model's own pretraining data is Llama 2's undisclosed mix.",
    "source": "https://github.com/lm-sys/FastChat/blob/main/docs/vicuna_weights_version.md",
    "status": "recorded"
  },
  "techniques": [],
  "primary_sources": [
    "https://huggingface.co/lmsys/vicuna-13b-v1.5",
    "https://huggingface.co/lmsys/vicuna-13b-v1.5/raw/c8327bf999adbd2efe2e75f6509fa01436100dc2/config.json"
  ],
  "record_history": [
    {
      "date": "2026-09-24",
      "change": "ingested as candidate from HF (lmsys/vicuna-13b-v1.5@c8327bf999adbd2efe2e75f6509fa01436100dc2)",
      "by": "ingest_hf.py"
    },
    {
      "date": "2026-09-24",
      "change": "preparer: developer, release date, fine_tuned_from llama-2-13b, trained_on sharegpt-vicuna added",
      "by": "claude (preparer, Sonnet 5)"
    },
    {
      "date": "2026-09-24",
      "change": "preparer cleanup: removed 3 stale flag(s), filled training_data",
      "by": "claude (preparer, Sonnet 5)"
    },
    {
      "date": "2026-09-24",
      "change": "reviewed and promoted from staging (2 edge(s) accepted)",
      "by": "Wilson Pruitt"
    }
  ]
}