Comparison

Google Vertex AI Search vs txtai

On the evidence we track, txtai leads this comparison with a composite score of 61/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Google Vertex AI Search full profile →txtai full profile →

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Google Vertex AI Search47

★txtai61

Attribute comparison across 2 tools
Attribute	Google Vertex AI Search	txtaiLeader
vioscaleAI score	47 / 100low · 34%	61 / 100medium · 56%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	open_source
Price levelpricing.price_level	low	free
Transparentpricing.transparent	✗	✓
Integrations
Countintegrations.count	8	5
Security
Scorecardsecurity.scorecard	-	5.4
Vulnerabilitiessecurity.vulnerabilities	-	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=txtai&per_page=100 · Last 12m: 0
Reliability
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	-	14
Github starsadoption.github_stars	-	13,018
Activity
Commits last 30dactivity.commits_last_30d	-	100
Release
Cadence daysrelease.cadence_days	-	27
Historyrelease.history	-	20 items
License
Spdxlicense.spdx	-	Apache-2.0
Language
Primarylanguage.primary	-	Python
Market
Availabilitymarket.availability	Available worldwide · Popular in US	-
Content
Faqcontent.faq	6 items	6 items

Score

vioscaleAI score

Google Vertex AI Search47 / 100low · 34%

txtai61 / 100medium · 56%

Pricing

Free tier

Google Vertex AI Search✓

txtai✓

Model

Google Vertex AI Searchfreemium

txtaiopen_source

Price level

Google Vertex AI Searchlow

txtaifree

Transparent

Google Vertex AI Search✗

txtai✓

Integrations

Count

Google Vertex AI Search8

txtai5

Security

Scorecard

Google Vertex AI Search–

txtai5.4

Vulnerabilities

Google Vertex AI Search–

txtaiCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=txtai&per_page=100 · Last 12m: 0

Reliability

Status page

Google Vertex AI Search–

txtai✓

Adoption

Dependent repos

Google Vertex AI Search–

txtai14

Github stars

Google Vertex AI Search–

txtai13,018

Activity

Commits last 30d

Google Vertex AI Search–

txtai100

Release

Cadence days

Google Vertex AI Search–

txtai27

History

Google Vertex AI Search–

txtai20 items

License

Spdx

Google Vertex AI Search–

txtaiApache-2.0

Language

Primary

Google Vertex AI Search–

txtaiPython

Market

Availability

Google Vertex AI SearchAvailable worldwide · Popular in US

txtai–

Content

Faq

Google Vertex AI Search6 items

txtai6 items

Capabilities

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

Capability comparison for RAG Tools
Capability	Google Vertex AI Search	txtai
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

Google Vertex AI Search-

txtai✓

Reranking integration

Google Vertex AI Search-

txtai✓

Multi hop agentic retrieval

Google Vertex AI Search-

txtai✓

Embedding provider agnostic

Google Vertex AI Search-

txtai✓

LLM provider agnostic

Google Vertex AI Search✓

txtai✓

Built in rag eval metrics

Google Vertex AI Search-

txtai-

Citation attribution

Google Vertex AI Search-

txtai✓

Multimodal rag

Google Vertex AI Search✓

txtai✓

Managed ingestion pipeline

Google Vertex AI Search✓

txtai✓

Open source

Google Vertex AI Search-

txtai✓

What each one is

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

Google Vertex AI Search

A Google-managed cloud solution that enables rapid development of search engines powered by generative AI and retrieval-augmented generation, supporting indexing and searching across websites and enterprise data.

Independently observed

txtai

Leader

txtai is an open-source Python framework for building semantic search applications, LLM-powered agents, retrieval augmented generation systems, and language model workflows with support for multiple vector backends and integration with various LLMs.

Independently observed

Pricing

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

Google Vertex AI Search

Usage-basedFree tier

Usage-based pricing for tools, storage, compute, and cloud resources. New customers receive $300 in free credits.

as of 2026-09-06verify ↗

txtai

Leader

Open sourceFree tier

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	Google Vertex AI Search	txtai
WebPlatforms	✓	✓
CLIPlatforms	✗	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✗	✓

Platforms

Web

Google Vertex AI Search✓

txtai✓

CLI

Google Vertex AI Search✗

txtai✓

Deployment

Cloud / SaaS

Google Vertex AI Search✓

txtai✗

Self-hosted

Google Vertex AI Search✗

txtai✓

Integrations

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

Google Vertex AI Search

9 total

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

Independently observed

txtai

Leader

12 total

llama.cpp
LiteLLM
Hugging Face
OpenAI
Claude
AWS Bedrock
smolagents
OpenCode
DuckDB
Milvus
LiteRT
Model Context Protocol

Independently observed

Still deciding?

Google Vertex AI Search or txtai: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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