Comparison

FastEmbed vs Voyage AI

No leader: the top candidate FastEmbed has only 0.31 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
FastEmbed47
Voyage AI42
Score
Vioscale score
FastEmbed47 / 100low · 31%
Voyage AI42 / 100low · 20%
Pricing
Model
FastEmbed
Voyage AIcommercial
Integrations
Count
FastEmbed1
Voyage AI2
Adoption
Dependent repos
FastEmbed4
Voyage AI
Github stars
FastEmbed3,166
Voyage AI
Activity
Commits last 30d
FastEmbed13
Voyage AI
Release
Cadence days
FastEmbed33
Voyage AI
History
FastEmbed20 items
Voyage AI
License
Spdx
FastEmbedApache-2.0
Voyage AI
Language
Primary
FastEmbedPython
Voyage AI

Capabilities

Feature-by-feature on the axes that matter for embeddings apis. “-” means undocumented, not absent.

Capabilities
Architecture model
FastEmbedOpen weights local
Voyage AIManaged cloud API
Matryoshka representation learning for dimension truncation
FastEmbed-
Voyage AI-
Multilingual support across 100 plus languages
FastEmbed
Voyage AI
Binary and scalar quantization for memory reduction
FastEmbed
Voyage AI-
Cross encoder reranker API offered
FastEmbed
Voyage AI
Late interaction architecture colbert v2
FastEmbed
Voyage AI-
Massive context window greater than 8k tokens
FastEmbed
Voyage AI
Multi modal image and text joint embeddings
FastEmbed
Voyage AI
Task specific prefixes query vs document instructions
FastEmbed
Voyage AI-
Zero data retention training opt out enterprise
FastEmbed-
Voyage AI-
SOC2 type ii
FastEmbed-
Voyage AI-
Mit or apache permissive oss license
FastEmbed
Voyage AI-
Pricing model
FastEmbedFree open weights
Voyage AI-

What each one is

The product in its own terms, so the numbers below have context.

FastEmbed

A Python library that creates vector embeddings from text and images using efficient, quantized model weights optimized for speed and local inference. Supports multiple embedding architectures including multilingual models and outperforms OpenAI's Ada-002 in accuracy.

Independently observed

Voyage AI

A platform providing advanced embedding and reranking models designed to improve search accuracy and quality in retrieval-augmented generation workflows with support for various data types and deployment scenarios.

Independently observed

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Deployment
Cloud / SaaS
FastEmbed
Voyage AI
Self-hosted
FastEmbed
Voyage AI
On-premise
FastEmbed
Voyage AI
Hybrid
FastEmbed
Voyage AI

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

FastEmbed

1 total
  • Qdrant
Independently observed

Voyage AI

2 total
  • vector databases
  • LLMs
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.