AI21: Jamba Large 1.7

AI21: Jamba Large 1.7

ai21 · Released Aug 8, 2025 Efficient
Intelligence #246 / 525
33.4 Our Score
Speed #182 / 244
56.1 tokens / sec
Input #439 / 525
$2.00 per 1M tokens
Output #444 / 525
$8.00 per 1M tokens
Context #126 / 525
256,000 tokens

Analysis Summary

AI21: Jamba Large 1.7 sits in the Efficient tier on our leaderboard, ranked #246 of 525 published models on overall intelligence. At $2.00 input and $8.00 output per 1M tokens, it is among the most expensive on the market. It offers a generous context window for extended reasoning and code review and supports tool use and function calling.

Editorial notes

AI21's Jamba Large 1.7 offers a large 256K context window and supports tool use and function calling, but its benchmark performance is limited across reasoning, coding, and agentic tasks, placing it well below the competitive tier for demanding business applications.

Assessed April 23, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence2.4Technical1.5Value6.5Content3.5
Intelligence 2.4/10
Technical 1.5/10
Content 3.5/10
Value 6.5/10

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..

Capabilities

Tool Use Function Calling

Performance Indices

Source: Artificial Analysis

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

Benchmark Scores

Intelligence

GPQA Diamond 39% Graduate-level scientific reasoning
HLE 3.8% Humanity's Last Exam
MMLU Pro 57.7% Multi-task language understanding
MATH 500 60% Mathematical problem-solving
AIME 5.7% Competition mathematics
AIME 2025 2.3% Competition mathematics (2025)
SciCode 18.8% Scientific computing

Technical

LiveCodeBench 18.1% Live coding evaluation
TerminalBench Hard 2.3% Agentic terminal tasks
τ²-Bench 13.5% Conversational agent benchmark

Content

IFBench 35.2% Instruction following
LCR 17.3% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does AI21: Jamba Large 1.7 stack up?

Compare side-by-side with other efficient models.

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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.

100%
Avg Uptime
597ms
Best Latency (TTFT)
19 tok/s
Best Throughput
1/1
Active Endpoints
Available via: AI21

Leaderboard Categories