ENT-00001437 · Foundation Model

FastSpeech

FastSpeech is a text-to-speech model associated with Microsoft Research.

Level IV — ConnectedDocumentedStructured

Human readable record

Overview

FastSpeech is a text-to-speech model associated with Microsoft Research. The entity is included because it represents a distinct public model, architecture, benchmark, dataset or AI research system with an identifiable source base and documented role.

Timeline

2019FastSpeech public release or documentation
FastSpeech appears in public documentation as a text-to-speech model associated with Microsoft Research.

Capabilities

Documented AI capabilityResearch or product source anchorModel or system lineageRelationship mapping

Known limitations

Capabilities depend on version, training data, deployment configuration and evaluation setting.The record documents public identity and source context rather than private implementation details.

Technical and registry detail

Technical description

Structured record for FastSpeech. The technical layer captures creator, release period, source anchor, system category, capability profile, limitations and relationships to adjacent models, platforms, benchmarks or research systems.

Controlled tags

Foundation ModelDocumented EntityEstablishedBatch 03 Candidate

Relationship graph

FastSpeech

Created or maintained byMicrosoft Research

FastSpeech is associated with Microsoft Research.

Machine readable layer

Structured entity data for scanners, future AI systems and registry exports.

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    "identifier": "ENT-00001437",
    "name": "FastSpeech",
    "alternateName": [],
    "additionalType": "Foundation Model",
    "description": "FastSpeech is a text-to-speech model associated with Microsoft Research.",
    "creator": "Microsoft Research",
    "url": "entity.php?id=ENT-00001437",
    "sameAs": "https://github.com/ming024/FastSpeech2",
    "lxkeysWorld": {
        "classification": "text-to-speech model",
        "organization": "Microsoft Research",
        "originContext": "AI model, architecture and research record",
        "firstPublicAppearance": "2019",
        "currentStatus": "Documented",
        "registryStatus": "Structured",
        "spatiumIndex": {
            "total": 74,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 11,
            "level": "Level IV — Connected"
        },
        "lxCalendarium": {
            "start_date_utc": "2023-04-01",
            "created_utc": "2026-06-16T23:59:14+00:00",
            "created_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3",
            "updated_utc": "2026-06-16T23:59:14+00:00",
            "updated_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3",
            "reviewed_utc": "2026-06-16T23:59:14+00:00",
            "reviewed_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3"
        },
        "capabilities": [
            "Documented AI capability",
            "Research or product source anchor",
            "Model or system lineage",
            "Relationship mapping"
        ],
        "limitations": [
            "Capabilities depend on version, training data, deployment configuration and evaluation setting.",
            "The record documents public identity and source context rather than private implementation details."
        ],
        "tags": [
            "Foundation Model",
            "Documented Entity",
            "Established",
            "Batch 03 Candidate"
        ],
        "timeline": [
            {
                "date": "2019",
                "title": "FastSpeech public release or documentation",
                "description": "FastSpeech appears in public documentation as a text-to-speech model associated with Microsoft Research."
            }
        ],
        "relationships": [
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                "type": "Created or maintained by",
                "description": "FastSpeech is associated with Microsoft Research.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "FastSpeech public reference",
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                "source_type": "Official or Research Source",
                "verification_status": "verified"
            }
        ]
    }
}

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