Best Open Source Alternatives to Vertex AI

Compare the best free and open-source alternatives to Vertex AI — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 1 alternatives

Vertex AI

Proprietary SaaS

Vertex AI alternatives compared

Open-source alternatives to Vertex AI, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Mem0	68,337	Apache-2.0	Web	No	Oct 2026	Visit

Top open-source Vertex AI alternatives

Mem068,337Apache-2.0

Mem0 provides self-hosted long-term memory for AI agents, replacing manual vector pipelines with automated fact extraction and cross-session persistence.

Web

vs Vertex AI: a free, open-source option you fully control, licensed Apache-2.0.

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EasyP

Promoted

The modern standard for Protobuf workflows

Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.

lintgeneratebreakingeasyp.lock

go · ts · java generated

$ easyp breaking

backward compatible