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AI21 Labs: Jamba Large

AI21's hybrid SSM-Transformer long-context model for enterprise agents and grounded generation

Source-linked jamba Open weights Released 2025-07-01
API record Report
InputT
OutputT
Input price$2/M
Output price$8/M
Context256K
Max output4.096K
Providers1
Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

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Providers offering Jamba Large
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
AI21 Labs jamba-large 256K 4.096K $2 $8 ToolsJSON Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Listed rates

Price across providers

Input price per million tokens as published by each provider. Bars are drawn from listed rates only — no traffic weighting, since the catalog observes no requests.

Lowest input $2/M

Across 1 priced provider

Median input $2/M

Midpoint of listed rates

Highest input $2/M

Same as the lowest listed rate

Output range $8 – $8

Per million output tokens

AI21 Labs $2/MLowest
Cost calculator

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Excludes taxes, non-token charges, and tiered discounts.
Specification

Capabilities

Recorded from the source catalog and provider listings.

× Reasoning No
Tool calling Yes
Structured output Yes
× Attachments No
× Vision input No
Open weights Yes
Creator
AI21 Labs
Model family
jamba
Knowledge cutoff
2024-08-22
License
Not documented
Release date
2025-07-01
Model ID
ai21/jamba-large

Weights: Hugging Face ↗

Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry
No published benchmark results

ModelBench does not infer quality from price, context size, or model name. When a source publishes a comparable result, it appears here with its version and link.

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Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log
No changes recorded

This record has not changed within the retained import history.

Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation
Endpoint
GET https://model.kyssta.lol/api/v1/models/ai21/jamba-large
curl
curl "https://model.kyssta.lol/api/v1/models/ai21/jamba-large"
Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Jamba Large?

AI21's hybrid SSM-Transformer long-context model for enterprise agents and grounded generation. It is published by AI21 Labs and catalogued here from Models.dev.

How much does Jamba Large cost?

Listed input pricing starts at $2 per million tokens from AI21 Labs.

What is the context length of Jamba Large?

Jamba Large accepts up to 256K tokens of context and returns up to 4.096K output tokens.

Does Jamba Large support tool calling and structured output?

Provider catalogs list support for tool calling, and structured output.

Which providers serve Jamba Large?

1 provider list this model: AI21 Labs.

Are the weights for Jamba Large open?

Yes. The weights are published and downloadable from Hugging Face.

When was Jamba Large released?

The catalog records a release date of 2025-07-01, last verified Sep 17, 2026.

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