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Jamba Reasoning 3B


Jamba Reasoning 3B is AI21 Labs logoAI21 Labs's language model. A compact 3-billion-parameter Jamba model from AI21 Labs specialized for reasoning tasks using the hybrid SSM-Transformer architecture.
Spec
Canonical IDai21-jamba-3b-reasoning
TypeLanguage
StatusActive
CreatorAI21 LabsAI21 Labs
Input ModalitiesText
Output ModalitiesText
Parameters3B
Intelligence Index
9.6
#276
Coding Index
2.5
#255
Math Index
10.7
#166
MMLU-Pro
0.6
#200
GPQA
0.3
#275
HLE
0.0
#206
LiveCodeBench
0.2
#192
IFBench
0.5
#52
Time to First Token
SciCode
0.1
#294
AIME 2025
0.1
#166
LCR
0.1
#196
TerminalBench Hard
0.0
#209
TAU2
0.2
#209
Output TPS
0.0
#202

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Jamba 1.7 Large256K$2.00$8.00Available
Jamba 1.7 Mini256K$0.200$0.400Available
Jamba 1.6 Large256K$2.00$8.00Available
Jamba 1.6 Mini256K$0.200$0.400Available
Jamba 1.5 Large256K$2.00$2.80Available
Jamba 1.5 Mini256K$0.200$0.200Available
Jamba 1.5256K$0.200$0.400Available
Jamba 1 Instruct70KAvailable
Jamba Large256KAvailable
Jamba Mini256KAvailable
Jamba Reasoning 3BCurrent

Model IDs