Aya ExpansevsCommand R
Cohere vs Cohere — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Aya Expanse | Command R |
|---|---|---|
| Provider | ||
| Arena Rank | — | #23 |
| Context Window | 128K | 128K |
| Input Pricing | Free/1M tokens | $0.15/1M tokens |
| Output Pricing | Free/1M tokens | $0.60/1M tokens |
| Parameters | 32B | 35B |
| Open Source | Yes | Yes |
| Best For | Multilingual (23 languages), research | Cost-effective RAG, summarization, chat |
| Release Date | Oct 24, 2024 | Mar 11, 2024 |
Aya Expanse
Aya Expanse is Cohere's multilingual open-source model supporting 23 languages, developed through the Cohere For AI research initiative with contributions from researchers worldwide. The 32B parameter model demonstrates strong performance across diverse languages and tasks, with particular attention to lower-resource languages that are often underserved by mainstream AI models. As an open-source contribution, Aya Expanse aims to democratize access to high-quality multilingual AI and enable researchers globally to build on its capabilities for their specific linguistic and cultural contexts.
View Cohere profile →Command R
Command R is Cohere's efficient model optimized for RAG workloads at scale. At 35 billion parameters with a 128K context window, it delivers strong retrieval-augmented generation performance at a significantly lower cost than Command R+. It supports 10 languages and excels at summarization, document Q&A, and conversational tasks, making it ideal for high-volume enterprise applications where cost efficiency is critical.
View Cohere profile →Key Differences: Aya Expanse vs Command R
Aya Expanse has 32B parameters vs Command R's 35B, which affects inference speed and capability.
When to use Aya Expanse
- +Budget is a concern and you need cost efficiency
- +Your use case involves multilingual (23 languages), research
When to use Command R
- +Quality matters more than cost
- +Your use case involves cost-effective rag, summarization, chat
Cost Analysis
At current pricing, Aya Expanse is nullx more affordable than Command R. For a typical enterprise workload processing 100M tokens per month:
Aya Expanse monthly cost
$0
100M tokens/mo (50/50 in/out)
Command R monthly cost
$38
100M tokens/mo (50/50 in/out)
The Verdict
This is a close matchup. Aya Expanse and Command R each win in different categories, making the choice highly dependent on your use case. Choose Aya Expanse for multilingual (23 languages), research. Choose Command R for cost-effective rag, summarization, chat.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages