AI Radar

Aya Expanse

Available · Language · Milestone

Aya Expanse is a family of multilingual open-weights language models from Cohere For AI, Cohere's research arm (now Cohere Labs), released in 8B and 32B sizes and aimed at 23 languages. The weights carry a non-commercial CC-BY-NC licence; the models were also offered on the Cohere API and, from January 2025, through WhatsApp. [1] [2] [3] [4] Primary source

Timeline of Aya Expanse →

Claims and evidence

  • Released Primary source[1]date line; closing availability paragraph
  • Aya Expanse available on WhatsApp Primary source[4]
  • Aya Expanse 8B retired from the Cohere API Primary source[5]2026-04-04: Embed v2.0, Aya Expanse 8B [6]
  • Status AvailableThe 32B model is Live on the Cohere API; the 8B model was retired from the API on 2026-04-04, but the weights of both sizes remain downloadable from Cohere Labs on Hugging Face. Primary source[7]Aya table: c4ai-aya-expanse-32b, Live [2] [3]
  • Successor of Aya 23The Aya 23 model cards call Aya 23 an older version of Aya and name Aya Expanse 8B and 32B as the latest versions. Primary source[8]note at the top [9]note at the top
  • Change · Training data Trained with a new recipe that Cohere says combines data arbitrage for synthetic multilingual data, multilingual preference training and model merging.Compared with Aya 23 Primary source[1]
  • Change · Context length The 32B model has a 128K-token context window, against 8,192 tokens for Aya 23 35B; the 8B model has 8K.Compared with Aya 23 Primary source[3]Model Details: Context length [9] [2]Model Details: Context length
  • Input text Primary source[2]Model Details: Input [3]Model Details: Input
  • Output text Primary source[2]Model Details: Output [3]Model Details: Output
  • Feature Multilingual23 languages. Primary source[1]first paragraph [3]Supported Languages
  • Open weights YesReleased under CC-BY-NC with Cohere Labs' Acceptable Use Policy; download is gated behind accepting the conditions. Primary source[1]second paragraph [2] [3] [10]Abstract
  • Access API, Open-weights download, consumer appCohere API platform, Kaggle and Hugging Face at release; chat access through WhatsApp from January 2025. Primary source[1]closing availability paragraph [4]

Lineage

Predecessors

Successors

No known successor.

Based on

Not derived from another model.

Variants and derived

Siblings

None recorded.

All ancestors

All descendants

Variants

Aya Expanse 8B

Same dates as Aya Expanse.

  • Variant Inline variant in this record. Primary source[2] [1]

Status: Available Evidence not assessed [2] [5]2026-04-04: Embed v2.0, Aya Expanse 8B

Also known as: c4ai-aya-expanse-8b, aya-expanse-8b

Differs in:

  • Context window: 8K tokens Evidence not assessed [2]Model Details: Context length [7]Aya table: c4ai-aya-expanse-8b
  • Parameters: 8 billion parameters Evidence not assessed [2]Model Size [1]second paragraph [10]Abstract

Aya Expanse 32B

Same dates as Aya Expanse.

  • Variant Inline variant in this record. Primary source[3] [1]

Status: Available Evidence not assessed [7]Aya table: c4ai-aya-expanse-32b, Live [3]

Also known as: c4ai-aya-expanse-32b, aya-expanse-32b

Differs in:

  • Context window: 128K tokens Evidence not assessed [3]Model Details: Context length [7]Aya table: c4ai-aya-expanse-32b
  • Parameters: 32 billion parameters Evidence not assessed [3]Model Size [1]second paragraph [10]Abstract

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