ENT-00001149 · Dataset

The Stack

The Stack is a permissively licensed code dataset associated with BigCode.

Level IV — ConnectedActiveStructured

Human readable record

Overview

The Stack is a documented permissively licensed code dataset used in artificial-intelligence research, evaluation or dataset construction. Its record captures the task context, public source, evaluation role and relationships to models, agents or research systems that rely on comparable measurements.

Timeline

2022The Stack public release or documentation
The Stack appears in public documentation as a permissively licensed code dataset associated with BigCode.

Capabilities

Evaluation referenceComparable measurementResearch reproducibilityModel documentation support

Known limitations

Benchmark interpretation depends on task design, data quality and contamination controls.Scores should not be treated as a complete measure of intelligence.

Technical and registry detail

Technical description

Structured reference record for The Stack. The technical layer captures source URL, creator, first-public year, evaluation or dataset role, measurable task family and relationships to model testing, retrieval, safety, coding, reasoning or multimodal assessment.

Controlled tags

DatasetEvaluationDocumentationContemporaryBatch 03 Candidate

Relationship graph

The Stack

Created or maintained byBigCode

The Stack is associated with BigCode.

Machine readable layer

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

{
    "@context": "https://schema.org",
    "@type": "Thing",
    "identifier": "ENT-00001149",
    "name": "The Stack",
    "alternateName": [],
    "additionalType": "Dataset",
    "description": "The Stack is a permissively licensed code dataset associated with BigCode.",
    "creator": "BigCode",
    "url": "entity.php?id=ENT-00001149",
    "sameAs": "https://huggingface.co/datasets/bigcode/the-stack",
    "lxkeysWorld": {
        "classification": "Permissively licensed code dataset",
        "organization": "BigCode",
        "originContext": "AI evaluation and dataset record",
        "firstPublicAppearance": "2022",
        "currentStatus": "Active",
        "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": [
            "Evaluation reference",
            "Comparable measurement",
            "Research reproducibility",
            "Model documentation support"
        ],
        "limitations": [
            "Benchmark interpretation depends on task design, data quality and contamination controls.",
            "Scores should not be treated as a complete measure of intelligence."
        ],
        "tags": [
            "Dataset",
            "Evaluation",
            "Documentation",
            "Contemporary",
            "Batch 03 Candidate"
        ],
        "timeline": [
            {
                "date": "2022",
                "title": "The Stack public release or documentation",
                "description": "The Stack appears in public documentation as a permissively licensed code dataset associated with BigCode."
            }
        ],
        "relationships": [
            {
                "target": "BigCode",
                "type": "Created or maintained by",
                "description": "The Stack is associated with BigCode.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "The Stack public reference",
                "url": "https://huggingface.co/datasets/bigcode/the-stack",
                "source_type": "Primary or Research Source",
                "verification_status": "verified"
            }
        ]
    }
}

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