AI21

Jamba Large

CTX256K

Tools

Input$2/M

Output$8/M

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

Open weightsJamba Open Model license597/1044

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AI21TextRare

Jamba Large

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

jamba-large

Type: Text
Quality: Not rated yet
Context window: 256,000 tokens
Max output: 4,096 tokens
Input price: $2.00 / 1M tokens
Output price: $8.00 / 1M tokens
Cache read: —
Cache write: —
Released: Jul 1, 2025
Knowledge cutoff: Aug 2024
Takes in: Text
Puts out: Text
Reasoning: No
Tool calling: Yes
Structured output: Yes
File attachments: No
Access: Open weights
License: Jamba Open Model license
Rarity: Rare
Set number: 597/1044

Open AI21 docs Where to run it 1 Meet its creature Battle Kimi K2.7 Code HighSpeed

No matching Hugging Face repo was found, so this shows AI21’s usual open-weight license. Check the model card before relying on it. Specs from models.dev, last changed Oct 19, 2026. Official source: docs.ai21.com.

How good is it?

Public leaderboard scores for Jamba Large, refreshed daily from Epoch AI and LMArena.

No public leaderboard lists Jamba Large yet. Epoch AI and LMArena cover most chat, image, and video models from the big labs; embeddings, speech, and small open models mostly go unrated.

Where to run it

1 provider sells Jamba Large through an API. Prices are per million tokens, cheapest first.

CheapestAI21 Labs$2.00 in · $8.00 out
From the labAI21 Labs$2.00 in · $8.00 out

API providers

Provider	Input	Output	Context
AI21 LabsOfficial`jamba-large`	$2.00	$8.00	256K

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

Face off

Current text models from other labs at a similar output price.

Jamba Large

Jamba Large

How good is it?

Where to run it

API providers

Face off

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