Struct ModelManifest 

pub struct ModelManifest {
    pub id: String,
    pub repo: String,
    pub revision: String,
    pub files: Vec<ModelFile>,
    pub license: String,
}

Model manifest describing a downloadable model.

Structurally compatible with frankensearch_embed::ModelManifest (which has additional optional fields: version, display_name, description, dimension, tier, download_size_bytes).

Fields

id: String

Model identifier (e.g., “all-minilm-l6-v2”).

repo: String

HuggingFace repository.

revision: String

Pinned revision (commit SHA).

files: Vec<ModelFile>

Files to download.

license: String

License identifier.

Implementations

impl ModelManifest

pub fn has_verified_checksums(&self) -> bool

Check if this manifest has verified checksums for all files.

Returns false if any file has the placeholder checksum, indicating the model has not been downloaded and verified yet.

pub fn has_pinned_revision(&self) -> bool

Check if this manifest has a pinned revision (not “main”).

Unpinned revisions (“main”) are not reproducible since the content can change at any time on HuggingFace.

pub fn is_production_ready(&self) -> bool

Check if this manifest is production-ready.

A manifest is production-ready if it has:

• All checksums verified (no placeholders)
• A pinned revision (not “main”)

pub fn minilm_v2() -> Self

Get the default MiniLM model manifest (baseline for bake-off).

The revision and checksums are pinned for reproducibility. Updated 2026-01-13: HuggingFace restructured the repo - ONNX models moved to onnx/ subdir.

pub fn snowflake_arctic_s() -> Self

Snowflake Arctic Embed S manifest.

Released: 2025-11-10 Dimension: 384 Small, fast model with MiniLM-compatible dimension.

Verified: 2026-02-02 - All checksums verified from HuggingFace.

pub fn nomic_embed() -> Self

Nomic Embed Text v1.5 manifest.

Released: 2025-11-05 Dimension: 768 Long context support with Matryoshka embedding capability.

Verified: 2026-02-02 - All checksums verified from HuggingFace.

pub fn msmarco_reranker() -> Self

MS MARCO MiniLM reranker manifest (baseline for bake-off).

Verified: 2026-02-02 - All checksums verified from HuggingFace. Note: The HuggingFace repo is ms-marco-MiniLM-L6-v2 (no hyphen between L and 6), but the on-disk directory name carries an extra hyphen (ms-marco-MiniLM-L-6-v2) to match reranker_registry::ReRanker::model_dir. Install paths use id as the directory; keeping them aligned is what lets cass models install --model ms-marco deliver the files where FastEmbedReranker actually looks for them.

pub fn jina_reranker_turbo() -> Self

Jina Reranker v1 Turbo EN manifest.

Released: 2025-11-20 Fast, optimized for English.

Verified: 2026-02-02 - All checksums verified from HuggingFace.

pub fn for_embedder(name: &str) -> Option<Self>

Get manifest by embedder name.

pub fn for_reranker(name: &str) -> Option<Self>

Get manifest by reranker name.

pub fn bakeoff_embedder_candidates() -> Vec<Self>

Get all bake-off eligible embedder manifests.

All models are verified with pinned revisions and SHA256 checksums.

pub fn bakeoff_reranker_candidates() -> Vec<Self>

Get all bake-off eligible reranker manifests.

All models are verified with pinned revisions and SHA256 checksums.

pub fn bakeoff_candidates() -> Vec<Self>

Get all bake-off eligible model manifests (embedders + rerankers).

All models are verified with pinned revisions and SHA256 checksums.

pub fn total_size(&self) -> u64

Total size of all files in bytes.

pub fn download_url_with_base( &self, file: &ModelFile, base_url: Option<&str>, ) -> String

Download URL for a file, optionally via a validated mirror base URL.

pub fn download_url(&self, file: &ModelFile) -> String

HuggingFace download URL for a file.

pub fn air_gap_bash_script(&self, base_url: Option<&str>) -> String

Generate a ready-to-paste bash script that downloads every file in the manifest via curl and then invokes cass models install --from-file.

Use this when the in-process downloader fails (e.g. the known Windows rustls/TCP connect race — see GH#193 for context). The script uses the pinned repo revision so checksums match.

pub fn air_gap_powershell_script(&self, base_url: Option<&str>) -> String

Generate a ready-to-paste PowerShell script that downloads every file via Invoke-WebRequest and then invokes cass models install --from-file.

Trait Implementations

impl Clone for ModelManifest

fn clone(&self) -> ModelManifest

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ModelManifest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.