Vicuna v1.5 16k (13B)
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Vicuna v1.5 16k (13B)

Vicuna v1.5 16K (13B): Open-source language model for research and applications.

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Vicuna v1.5 16k (13B)

Vicuna v1.5 16K (13B) API is an open-source large language model with 13 billion parameters, designed for ChatBots and natural language processing tasks.

Vicuna v1.5 16k (13B)

Model Overview Card for Vicuna v1.5 16K (13B)

Basic Information

  • Model Name: Vicuna v1.5 16K (13B)
  • Developer/Creator: LMSYS Org
  • Release Date: May 2023
  • Version: 1.5
  • Model Type: Large Language Model (LLM)


Vicuna v1.5 16K (13B) is an open-source large language model developed by LMSYS Org as an improved version of the original Vicuna model. It is designed to provide high-quality conversational AI capabilities and perform various natural language processing tasks.Key Features:

  • Provide 16K context length versions using linear RoPE scaling.
  • Improved performance over the original Vicuna model
  • Open-source and freely available for research and development
  • Capable of handling a wide range of language tasks
  • Trained on a diverse dataset of web content

Intended Use: Vicuna v1.5 16K (13B) is primarily intended for research purposes, chatbot applications, and various natural language processing tasks such as text generation, question-answering, and language understanding.

Language Support:

English (primary), with potential support for other languages based on its training data.

Technical Details


Vicuna v1.5 16K (13B) is based on the LLaMA architecture, which is a transformer-based model. It utilizes a decoder-only architecture with 13 billion parameters, allowing for efficient processing of large amounts of text data.

Training Data

The model was trained on a diverse dataset of web content, including:

  • ShareGPT conversations
  • Books
  • Academic papers
  • Code repositories
  • Web pages

Data Source and Size:

While the exact size of the training data is not specified, it is likely to be in the range of hundreds of gigabytes to several terabytes, given the model's size and capabilities.

Knowledge Cutoff:

The knowledge cutoff date for Vicuna v1.5 16K (13B) is not explicitly stated, but it is likely to be early 2023 based on its release date.

Diversity and Bias:

The model's training data includes a wide range of web content, which may help reduce certain biases. However, as with all large language models, it may still exhibit biases present in the source data.

Performance Metrics


Vicuna v1.5 16K (13B) demonstrates improved performance compared to its predecessor. While specific accuracy metrics are not provided, it has shown competitive results in various benchmarks and evaluations.


The inference speed of Vicuna v1.5 16K (13B) depends on the hardware used for deployment. As a 13 billion parameter model, it requires significant computational resources for real-time applications.


Vicuna v1.5 16K(13B) is designed to handle a wide range of language tasks and topics. Its performance across different domains and languages may vary based on the diversity of its training data.


Code Samples

Ethical Guidelines

Users of Vicuna v1.5 16K (13B) should be aware of potential biases in the model's outputs and use it responsibly. It is recommended to implement content filtering and safety measures when deploying the model in production environments.

License Type

Vicuna v1.5 16K (13B) is released under an open-source license, allowing for research and development use.

Vicuna v1.5 16k (13B)

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