Creator
AI21 Labs
Released
2024-08-22
Intelligence
5.1
Artificial Analysis Index
Coding
—
Artificial Analysis Index
In $/1M
$2.00
input tokens
Out $/1M
$8.00
output tokens
Blended $/1M
$3.50
3:1 blended
Speed
0
tokens / sec
Profile
License, openness, and modality — the governance layer.
License
Jamba Open Model License
non-commercial
Weights
Open
downloadable
Modalities
Text
Parameters
398B
total
State-of-the-art hybrid SSM-Transformer instruction following foundation model, offering superior long context handling, speed, and quality.
Capability profile
Category strength across 20 domains, via LLM Stats.
math
70general
70writing
70language
70reasoning
70creativity
70legal
60
finance
60healthcare
60communication
50biology
40physics
40chemistry
40
Benchmark breakdown
Independent evaluation scores, normalized to 0–100.
GPQA Diamond
43
Humanity’s Last Exam
4
MMLU-Pro
57
SciCode
16
LiveCodeBench
14
MATH-500
61
AIME 2025—
τ²-Bench (agentic)—
Terminal-Bench Hard—
IFBench—