AI21: Jamba Large 1.7

AI21: Jamba Large 1.7

ai21 · Released Aug 8, 2025
30
Our Score

Jamba Large 1.7 is the latest model in the Jamba open family, offering improvements in grounding, instruction-following, and overall efficiency. Built on a hybrid SSM-Transformer architecture with a 256K context window, it delivers more accurate, contextually grounded responses and better steerability than previous versions.

$2.00 / 1M Input Price
$8.00 / 1M Output Price
256,000 tokens Context Window
4,096 tokens Max Output

Capabilities

Tool Use Function Calling

Architecture

ModalityText → Text
TokenizerOther

Performance Indices

Source: Artificial Analysis

10.9 Intelligence Index
7.8 Coding Index
7.9 Agentic Index
2.3 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 39%
Graduate-level scientific reasoning
HLE 3.8%
Humanity's Last Exam
MMLU Pro 57.7%
Multi-task language understanding
LiveCodeBench 18.1%
Live coding evaluation
SciCode 18.8%
Scientific computing
MATH 500 60%
Mathematical problem-solving
AIME 5.7%
Competition mathematics
AIME 2025 2.3%
Competition mathematics (2025)
IFBench 35.2%
Instruction following
LCR 17.3%
Long-context reasoning
TerminalBench Hard 2.3%
Agentic terminal tasks
τ²-Bench 13.5%
Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID ai21/jamba-large-1.7
Providerai21
Release Date August 8, 2025
Context Length256,000 tokens
Max Completion4,096 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $2.00 $0.002000
Output $8.00 $0.008000

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

725ms
Best Latency (TTFT)
13 tok/s
Best Throughput
0/1
Active Endpoints
Available via: AI21