voyage-4-nano

Overview

voyage-4-nano is the first open-weight model from Voyage AI, freely available on Hugging Face under the Apache 2.0 license. It's part of the Voyage 4 series announced in January 2026.

Key Features

• Shared Embedding Space: All Voyage 4 models produce compatible embeddings, allowing customers to mix and match models for query and document embedding based on specific accuracy, latency, and cost requirements
• Open Weight: Freely available under Apache 2.0 license for local development and prototyping
• Lightweight: Significantly fewer parameters than larger Voyage 4 models while maintaining quality
• Production-Ready: Can be used alongside other Voyage 4 models for flexible deployment strategies

Use Cases

• Local development and prototyping
• Cost-effective embedding generation
• Edge deployment scenarios
• RAG applications requiring high-quality embeddings

Model Architecture

voyage-4-nano is part of the Voyage 4 family which leverages a mixture-of-experts (MoE) architecture in the larger models, though specific architectural details for the nano variant are optimized for efficiency.

Pricing

Free and open-source under the Apache 2.0 license.