LLM Reference

Jurassic-1 Models by AI21 Labs

This model family is considered obsolete. Consider newer alternatives in Related Model Families below.
3 models2021

About

Jurassic-1, a family of large language models developed by AI21 Labs, includes two notable models: J1-Jumbo, boasting 178 billion parameters, and J1-Large, with 7 billion parameters. These autoregressive models excel in predicting the next word in a sequence, enabling them to tackle various tasks such as text generation, question answering, and text classification. Trained on an extensive corpus of English text, Jurassic-1 models are renowned for their impressive vocabulary of 250,000 tokens, which enhances efficiency and reduces latency compared to other LLMs. Access to these models is provided through AI21 Studio, an API, and interactive web platform that also allows for custom model training with minimal datasets.

Current Variants

Use-when guidance is derived from seed capabilities, context, release, and replacement fields.

3 in view
J1-JumboCurrent

Use when the workload needs 178B parameters.

2021-08178B parameters
J1-GrandeCurrent

Use when the workload needs 17B parameters.

2021-0817B parameters
J1-LargeCurrent

Use when the workload needs 7.5B parameters.

2021-087.5B parameters

Release Timeline

1 release group
2021-08
3 current
J1-Grande
17B parameters
Current
J1-Jumbo
178B parameters
Current
J1-Large
7.5B parameters
Current

Specifications(3 models)

Jurassic-1 model specifications comparison
ModelReleasedParameters
J1-Jumbo2021-08178B
J1-Grande2021-0817B
J1-Large2021-087.5B

Frequently Asked Questions

What is Jurassic-1 used for?
Jurassic-1 is used for chatbot and role-playing use cases. The family description and listed model capabilities point to those workloads as the best fit.
How does Jurassic-1 compare to Jamba 1.7?
Jurassic-1 by AI21 Labs is strongest where you need chatbot and role-playing use cases, while Jamba 1.7 by AI21 Labs is the closest related family to check for agent workflows and tool use. Jurassic-1 has 3 listed variants, while Jamba 1.7 reaches up to 256k context, so compare the specs and pricing tables before choosing a production model.
Which Jurassic-1 model should I use?
If price is the main constraint, use the pricing table first because Jurassic-1 does not have complete provider pricing in the local data. For the most capable/latest local choice, evaluate J1-Jumbo.

Models(3)