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Introducing Aya

A global initiative led by Cohere For AI involving over 3,000 independent researchers across 119 countries. Aya is a state-of-art model and dataset, pushing the boundaries of multilingual AI for 101 languages through open science.

The word Aya is derived from the Twi language meaning “fern” - a symbol of endurance and resourcefulness. Aya embodies our dedication to advancing multilingual AI.




Total Release Dataset Size


Independent Researchers


Language Ambassadors




Original Human Annotations




Discord Messages

The Aya Models

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State of the Art, Accessible Research LLM

Aya 23 - 8B

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State of the Art Research LLM

Aya 23 - 35B

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Massively Multilingual Research LLM

Aya 101

Multilingual AI Research

Aya provides AI researchers a groundbreaking foundation to accelerate multilingual AI progress. Aya is one of the largest open science endeavors in machine learning to date – redefining the research landscape by collaborating with independent researchers from across the globe. The result is a fully open-sourced dataset and model.

A Step Forward For Multilingual Generative AI

Human evaluation of the Aya model shows consistent gains

The Aya model follows instructions and generates responses of significantly higher quality than mT0x. Based on human evaluations from professional annotators who compared model responses to instructions given in multiple languages, the Aya model is preferred 77% of the time on average.

Try Aya

Jambo. Bạn có khỏe không. नमस्ते. Aya provides a foundation for underserved languages in natural language understanding, summarization, and translation tasks.

Ready to start generating your own prompts? Download our massively multilingual model which covers 101 languages, or jump to the playground to try our best Aya model which covers 21 languages.

Select language:


আপেল খাওয়ার ৫টি উপায় কি কি?


আপেল কেটে নিন এবং টুকরো টুকরো করে নিন। আপেল কেটে কেটে নিন এবং টুকরো টুকরো করে নিন। আপেল কেটে এবং সিরাপের সাথে মিশিয়ে নিন। আপেল কেটে টুকরো টুকরো করে নিন।

Aya Press

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Cohere launches open weights AI model Aya 23 with support for 23 languages

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AI Business

"Build Multilingual AI Solutions with Cohere’s New Aya Model"

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"Cohere for AI unveils Aya, a multilingual open-source AI in 101 languages"

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"New AI polyglot launched to help fill massive language gap in field"

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The Washington Post

"Helping the second class citizens of the AI boom"

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The Globe and Mail

"AI falls short in many languages. A non-profit project aims to fix that"

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Aya at a Glance

Learn more about the journey of Aya, from our collaborators, to key breakthroughs & the responsible use of our open source model

What’s next?

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Join Expedition Aya

Announcing our 6-week, global build challenge to expand the world AI sees.

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Aya 23 Blog

Learn about our latest 8 and 35 Billion Parameter Open Weights Release

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Contribute to Aya

Represent your language for inclusion in future versions of Aya.

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Cohere For AI

Aya is led by Cohere For AI, a non-profit research lab that seeks to solve complex ML problems. We support fundamental research and are focused on creating more points of entry into ML research.