Comparison

FastRAG vs Google Vertex AI Search

On the evidence we track, FastRAG leads this comparison with a composite score of 47/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

FastRAG full profile →Google Vertex AI Search full profile →

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★FastRAG47

Google Vertex AI Search23

Attribute comparison across 2 tools
Attribute	FastRAGLeader	Google Vertex AI Search
Vioscale score	47 / 100low · 35%	23 / 100low · 25%
Pricing
Free tierpricing.free_tier	✓	✗
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	unknown
Transparentpricing.transparent	✓	✗
Integrations
Countintegrations.count	6	8
Security
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FIntelLabs%2FfastRAG&per_page=100 · Last 12m: 0	-
Adoption
Dependent reposadoption.dependent_repos	0	-
Github starsadoption.github_stars	1,785	-
Activity
Commits last 30dactivity.commits_last_30d	0	-
Release
Cadence daysrelease.cadence_days	22	-
Historyrelease.history	10 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Python	-
Market
Availabilitymarket.availability	-	Available worldwide · HQ US

Score

Vioscale score

FastRAG47 / 100low · 35%

Google Vertex AI Search23 / 100low · 25%

Pricing

Free tier

FastRAG✓

Google Vertex AI Search✗

Model

FastRAGcommercial

Google Vertex AI Searchcommercial

Price level

FastRAGfree

Google Vertex AI Searchunknown

Transparent

FastRAG✓

Google Vertex AI Search✗

Integrations

Count

FastRAG6

Google Vertex AI Search8

Security

Vulnerabilities

FastRAGCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FIntelLabs%2FfastRAG&per_page=100 · Last 12m: 0

Google Vertex AI Search–

Adoption

Dependent repos

FastRAG0

Google Vertex AI Search–

Github stars

FastRAG1,785

Google Vertex AI Search–

Activity

Commits last 30d

FastRAG0

Google Vertex AI Search–

Release

Cadence days

FastRAG22

Google Vertex AI Search–

History

FastRAG10 items

Google Vertex AI Search–

License

Spdx

FastRAGApache-2.0

Google Vertex AI Search–

Language

Primary

FastRAGPython

Google Vertex AI Search–

Market

Availability

FastRAG–

Google Vertex AI SearchAvailable worldwide · HQ US

Capabilities

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

Capability comparison for RAG Tools
Capability	FastRAG	Google Vertex AI Search
Capabilities
Hybrid retrieval	-	-
Reranking integration	-	-
Multi hop agentic retrieval	-	-
Embedding provider agnostic	✓	-
LLM provider agnostic	✓	✓
Built in rag eval metrics	-	-
Citation attribution	-	-
Multimodal rag	✓	✓
Managed ingestion pipeline	-	✓
Open source	✓	-

Capabilities

Hybrid retrieval

FastRAG-

Google Vertex AI Search-

Reranking integration

FastRAG-

Google Vertex AI Search-

Multi hop agentic retrieval

FastRAG-

Google Vertex AI Search-

Embedding provider agnostic

FastRAG✓

Google Vertex AI Search-

LLM provider agnostic

FastRAG✓

Google Vertex AI Search✓

Built in rag eval metrics

FastRAG-

Google Vertex AI Search-

Citation attribution

FastRAG-

Google Vertex AI Search-

Multimodal rag

FastRAG✓

Google Vertex AI Search✓

Managed ingestion pipeline

FastRAG-

Google Vertex AI Search✓

Open source

FastRAG✓

Google Vertex AI Search-

What each one is

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

FastRAG

Leader

A toolkit for researchers and developers to construct and optimize RAG applications. It provides streamlined components for retrieval and generation, with support for multiple LLM backends and hardware accelerators, and maintains compatibility with the Haystack framework.

Independently observed

Google Vertex AI Search

A comprehensive development platform that enables teams to rapidly create and scale autonomous agents powered by multiple AI model options, with built-in governance, enterprise data grounding, and integration capabilities.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

FastRAG

Leader

Open sourceFree tier

as of 2026-08-21verify ↗

Google Vertex AI Search

Usage-based

Pay-as-you-go for platform tools, storage, compute, and cloud resources. New customers receive $300 in free credits.

as of 2026-08-21verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	FastRAG	Google Vertex AI Search
WebPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✗

Platforms

Web

FastRAG✗

Google Vertex AI Search✓

CLI

FastRAG✓

Google Vertex AI Search✓

Deployment

Cloud / SaaS

FastRAG✗

Google Vertex AI Search✓

Self-hosted

FastRAG✓

Google Vertex AI Search✗

Integrations

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

FastRAG

Leader

6 total

Haystack
HuggingFace
Elastic
Qdrant
OpenVINO
LlamaCpp

Independently observed

Google Vertex AI Search

8 total

Google Cloud Storage
Google Cloud Logging
Google Cloud Monitoring
BigQuery
Cloud Data Fusion
Cloud Dataflow
Cloud Composer
Service Directory

Independently observed

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