J1
ENT-00000537 · Foundation Model

Jamba 1.5

Jamba 1.5 is a documented foundation model associated with AI21 Labs.

Level V — PersistentActiveConnected
Human readable record

Overview

Jamba 1.5 is documented as a foundation model or model-family record associated with AI21 Labs. Its relevance comes from updated Jamba generation for long-context enterprise use. The entity is useful for tracing model lineage, provider strategy, capability evolution and relationships between assistants, APIs and downstream products.

Timeline

  1. 2024Jamba 1.5 public reference

    Jamba 1.5 is publicly documented in relation to AI21 Labs.

Capabilities

Language or multimodal model capabilityAPI or deployment integrationReasoning, generation or representation learningModel-family relationship mapping

Known limitations

Capabilities vary by release, deployment setting and evaluation method.Operational details may differ across hosted APIs, open releases or downstream integrations.
Technical and registry detail

Technical description

Structured record for Jamba 1.5. The technical layer identifies entity type Foundation Model, organization AI21 Labs, source anchor https://docs.ai21.com/docs/models, capability fields, limitation fields, timeline event, source records, tags (AI21 Labs, AI21, Foundation Model) and graph relationships for machine-readable registry integration.

Controlled tags

AI21 LabsAI21Foundation Model
Relationship graph
Jamba 1.5
Associated OrganizationAI21 Labs

AI21 Labs is the organization or ecosystem associated with Jamba 1.5.

Registry CategoryFoundation Models

Model-level entity connected to the foundation-model layer of the registry.

Machine readable layer

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

{
    "@context": "https://schema.org",
    "@type": "Thing",
    "identifier": "ENT-00000537",
    "name": "Jamba 1.5",
    "alternateName": [],
    "additionalType": "Foundation Model",
    "description": "Jamba 1.5 is a documented foundation model associated with AI21 Labs.",
    "creator": "AI21 Labs",
    "url": "entity.php?id=ENT-00000537",
    "sameAs": "https://docs.ai21.com/docs/models",
    "lxkeysWorld": {
        "classification": "AI21 hybrid model",
        "organization": "AI21 Labs",
        "originContext": "Foundation model",
        "firstPublicAppearance": "2024",
        "currentStatus": "Active",
        "registryStatus": "Connected",
        "spatiumIndex": {
            "total": 82,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 19,
            "level": "Level V — Persistent"
        },
        "lxCalendarium": {
            "start_date_utc": "2023-04-01",
            "created_utc": "2026-06-16T23:59:02+00:00",
            "created_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3",
            "updated_utc": "2026-06-16T23:59:02+00:00",
            "updated_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3",
            "reviewed_utc": "2026-06-16T23:59:02+00:00",
            "reviewed_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3"
        },
        "capabilities": [
            "Language or multimodal model capability",
            "API or deployment integration",
            "Reasoning, generation or representation learning",
            "Model-family relationship mapping"
        ],
        "limitations": [
            "Capabilities vary by release, deployment setting and evaluation method.",
            "Operational details may differ across hosted APIs, open releases or downstream integrations."
        ],
        "tags": [
            "AI21 Labs",
            "AI21",
            "Foundation Model"
        ],
        "timeline": [
            {
                "date": "2024",
                "title": "Jamba 1.5 public reference",
                "description": "Jamba 1.5 is publicly documented in relation to AI21 Labs."
            }
        ],
        "relationships": [
            {
                "target": "AI21 Labs",
                "type": "Associated Organization",
                "description": "AI21 Labs is the organization or ecosystem associated with Jamba 1.5.",
                "evidence_level": "documentary"
            },
            {
                "target": "Foundation Models",
                "type": "Registry Category",
                "description": "Model-level entity connected to the foundation-model layer of the registry.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "Jamba 1.5 official reference",
                "url": "https://docs.ai21.com/docs/models",
                "source_type": "Official Documentation",
                "verification_status": "verified"
            }
        ]
    }
}
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