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Cohere Embed v4vsAya 23 35B

Cohere vs Cohere — Side-by-side model comparison

Cohere Embed v4 leads 3/5 categories

Head-to-Head Comparison

MetricCohere Embed v4Aya 23 35B
Provider
Arena Rank
Context Window
128K
8K
Input Pricing
$0.12/1M tokens
Free (open)/1M tokens
Output Pricing
$0.12/1M tokens
Free (open)/1M tokens
Parameters
Undisclosed
35B
Open Source
No
Yes
Best For
Semantic search, RAG embeddings, document retrieval
Multilingual tasks, low-resource languages
Release Date
Mar 1, 2025
May 23, 2024

Cohere Embed v4

Cohere Embed v4, developed by Cohere, is the first multimodal embedding model in Cohere's lineup, processing both text and images into unified 128K-context vector representations. The model generates embeddings for semantic search, RAG pipelines, document retrieval, and visual search applications. Supporting 100+ languages, Embed v4 produces compact, efficient vectors optimized for modern vector databases. Its multimodal capability enables searching across mixed document types containing both text and visual elements. Priced at $0.12 per million tokens, it offers affordable embedding generation for production applications. The model represents a significant upgrade over text-only Embed v3, enabling unified search across document types. It is particularly valuable for enterprises with heterogeneous content including PDFs, presentations, and image-heavy documents that require combined text and visual understanding.

View Cohere profile →

Aya 23 35B

Aya 23 35B, developed by Cohere through the Cohere For AI research initiative, is an open-source multilingual model with 35 billion parameters and an 8K token context window supporting 23 languages. The model was developed with contributions from researchers worldwide, focusing on extending quality AI capabilities to lower-resource languages that mainstream models underserve. Aya 23 35B performs well on multilingual benchmarks, particularly for languages in Africa, South Asia, and Southeast Asia where few commercial alternatives exist. Free and open-source, it can be fine-tuned and deployed for language-specific applications without cost. The model represents Cohere's commitment to democratizing AI access globally, providing a foundation for researchers and developers working in languages outside the English-Chinese-European focus of most commercial models.

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Key Differences: Cohere Embed v4 vs Aya 23 35B

1

Cohere Embed v4 supports a larger context window (128K), allowing it to process longer documents in a single request.

2

Aya 23 35B is open-source (free to self-host and fine-tune) while Cohere Embed v4 is proprietary (API-only access).

C

When to use Cohere Embed v4

  • +You need to process long documents (128K context)
  • +You prefer a managed API without infrastructure overhead
  • +Your use case involves semantic search, rag embeddings, document retrieval
View full Cohere Embed v4 specs →
A

When to use Aya 23 35B

  • +You need to self-host or fine-tune the model
  • +Your use case involves multilingual tasks, low-resource languages
View full Aya 23 35B specs →

The Verdict

Cohere Embed v4 wins our head-to-head comparison with 3 out of 5 category wins. It's the stronger choice for semantic search, rag embeddings, document retrieval, though Aya 23 35B holds an edge in multilingual tasks, low-resource languages.

Last compared: April 2026 · Data sourced from public benchmarks and official pricing pages

Frequently Asked Questions

Which is better, Cohere Embed v4 or Aya 23 35B?
In our head-to-head comparison, Cohere Embed v4 leads in 3 out of 5 categories (arena rank, context window, input pricing, output pricing, and parameters). Cohere Embed v4 excels at semantic search, rag embeddings, document retrieval, while Aya 23 35B is better suited for multilingual tasks, low-resource languages. The best choice depends on your specific requirements, budget, and use case.
How does Cohere Embed v4 pricing compare to Aya 23 35B?
Cohere Embed v4 charges $0.12 per 1M input tokens and $0.12 per 1M output tokens. Aya 23 35B charges Free (open) per 1M input tokens and Free (open) per 1M output tokens. For high-volume production workloads, the pricing difference can significantly impact total cost of ownership.
What is the context window difference between Cohere Embed v4 and Aya 23 35B?
Cohere Embed v4 supports a 128K token context window, while Aya 23 35B supports 8K tokens. Cohere Embed v4 can process longer documents, codebases, and conversations in a single request. Context window size matters most for tasks involving long documents, large codebases, or extended conversations.
Can I use Cohere Embed v4 or Aya 23 35B for free?
Cohere Embed v4 is a paid API model starting at $0.12 per 1M input tokens. Aya 23 35B is a paid API model starting at Free (open) per 1M input tokens. Open-source models can be self-hosted for free but require your own GPU infrastructure.
Which model has better benchmarks, Cohere Embed v4 or Aya 23 35B?
Cohere Embed v4's arena rank is not yet available, while Aya 23 35B's rank is not yet available. Note that benchmarks don't capture every use case — we recommend testing both models on your specific tasks.
Is Cohere Embed v4 or Aya 23 35B better for coding?
Cohere Embed v4's primary strength is semantic search, rag embeddings, document retrieval. Aya 23 35B's primary strength is multilingual tasks, low-resource languages. For coding specifically, arena rank and code-specific benchmarks are the best indicators of performance.