No longer supported

This model is legacy (released September 2021) and is no longer actively maintained or recommended by AI21 Labs. Consider using their current flagship model instead.

legacylegacyllm Proprietary

Jurassic-1 Large

by AI21 Labs· Released September 2021

Jurassic-1 Large is a 7.5B parameter autoregressive language model developed by AI21 Labs, designed for a variety of natural language tasks including text generation, summarization, and question answering. It is part of the Jurassic-1 family, which also includes the larger Jurassic-1 Jumbo (178B parameters). As a legacy model, it has been succeeded by the Jurassic-2 series.

Official Site API Docs

Input cost

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Output cost

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Context window

2048 tokens

Max output

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Modalities

text

Parameters

7.5B

License

proprietary

Capabilities

Text GenerationSummarizationQuestion AnsweringParaphrasingSentiment AnalysisText Completion

Best For

General-purpose natural language tasks requiring a balance of performance and efficiency.

Strengths

Strong performance on a wide range of NLP benchmarks
Efficient inference due to smaller size compared to Jumbo
Good at few-shot learning
Supports multiple languages

Limitations

Smaller context window (2048 tokens)
Legacy model, no longer actively developed
Outperformed by newer Jurassic-2 models
Limited to text-only tasks

Use Cases

Content generation

Text summarization

Chatbots and virtual assistants

Language translation

Sentiment analysis

Question answering systems

Text classification

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