Vertex AI costs $15/mo.
These cost $0.
3 free alternatives to Vertex AI, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
The top-rated free, open-source replacement for Vertex AI is Dify (Open Source Open Source). Across this category, 3 self-hostable tools are available (including Dify and Mem0). Switching a 5-person team saves up to $900/year compared to Vertex AI's $15/mo subscription.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Vertex AI.
Vertex AI vs Free Alternatives
Quick side-by-side comparison · $0/mo vs $15/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Dify | open source | Open Source | Self-host | ★ 160.6k | Vertex AI vs Dify → |
| Mem0 | open source | Open Source | Self-host | ★ 68.5k | Vertex AI vs Mem0 → |
| Beam | open source | Open Source | Self-host | ★ 1.8k | Vertex AI vs Beam → |
The picks
3 open source · ranked by fit
- 01
Dify
open sourceOpen SourceSelf-host160.6knov 2026Visual platform for building agentic workflows, RAG pipelines, and LLM-powered apps. Supports hundreds of models, MCP integration, and self-hosted deployment.
The catch vs Vertex AIRequires self-hosting setup, updates, and server maintenance compared to managed Vertex AI.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Clone https://github.com/langgenius/dify or deploy with Docker Compose
- setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- your data
- All application data and configuration live on your own server or local database.
- checked
- 2026-11-07
- 02
Mem0
open sourceOpen SourceSelf-host68.5knov 2026Adds persistent, searchable memory to AI agents and apps, so they remember user preferences and past interactions across sessions without pipeline changes.
The catch vs Vertex AIRequires self-hosting setup, updates, and server maintenance compared to managed Vertex AI.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Clone https://github.com/mem0ai/mem0 or deploy with Docker Compose
- setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- your data
- All application data and configuration live on your own server or local database.
- checked
- 2026-11-07
- 03
Beam
open sourceOpen SourceSelf-host1.8knov 2026Run GPU inference, task queues, and sandboxes on serverless infrastructure with sub-second cold starts, autoscaling, and support for your own AWS, GCP, or bare metal.
The catch vs Vertex AIRequires self-hosting setup, updates, and server maintenance compared to managed Vertex AI.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Clone https://github.com/beam-cloud/beta9/ or deploy with Docker Compose
- setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- your data
- All application data and configuration live on your own server or local database.
- checked
- 2026-11-07
Vertex AI Head-to-Head Comparisons (2027)
Side-by-side trade-off breakdowns · 3 free alternatives
Frequently Asked Questions
Direct answers · Vertex AI open-source replacements
What is the best free alternative to Vertex AI?+
The top free alternative to Vertex AI is Dify (open source, Open Source). Visual platform for building agentic workflows, RAG pipelines, and LLM-powered apps. Supports hundreds of models, MCP integration, and self-hosted deployment. Other popular Vertex AI replacements include Mem0, Beam.
Can I self-host a free replacement for Vertex AI?+
Yes. Of the 3 free alternatives to Vertex AI, 3 can be self-hosted on your own server or local machine: Dify (Open Source), Mem0 (Open Source), Beam (Open Source).
How much does switching from Vertex AI to a free alternative save?+
Vertex AI starts at $15/month per seat ($180/year). Switching a 5-person team to a free alternative like Dify saves $900 per year in software subscription fees.
Should I vibe-code or build my own Vertex AI clone from scratch?+
Our build verdict for Vertex AI is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Vertex AI or rebuilding it from scratch, deploy one of the 3 battle-tested open-source alternatives like Dify.
What is the catch when switching from Vertex AI to Dify?+
Requires self-hosting setup, updates, and server maintenance compared to managed Vertex AI.
