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OpenShell vs union

OpenShell and union share 16 technologies: net/http, axum, sqlx-postgres, sqlx, Postgres, SQLite, Tokio, tower, Ratatui, crossterm, console, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, and opentelemetry-otlp. Both are written in Rust.

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What they share and what sets them apart

NVIDIA

OpenShell

OpenShell is the safe, private runtime for autonomous AI agents.

Rust21.1kRead on November 5, 2026, at commit d9a9196What is OpenShell built with?

Only in OpenShell

In common

unionlabs

union

The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

Rust73.7kRead on November 5, 2026, at commit 031785bWhat is union built with?

Only in union

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
OpenShell796,056 lines written725 code files
union468,416 lines written1,841 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
OpenShell0.3% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
union0% of its commits signed by AIWith CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
OpenShellLast push November 5, 20261,961 commits21,127 stars
unionLast push July 25, 202613,299 commits73,725 stars
TestsThe files that test the code, and the share of code files a test imports.
OpenShell383 test files39.2% of its code files have a test that imports them
union120 test files10.4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, OpenShell or union?
OpenShell, with 796,056 lines written; union has 468,416.

The proof: NVIDIA/OpenShell's code at commit d9a9196

Which has more GitHub stars, OpenShell or union?
union, with 73,725 stars; OpenShell has 21,127.

The proof: unionlabs/union on GitHub

Which has more tests, OpenShell or union?
OpenShell, with 383 test files; union has 120.

The proof: NVIDIA/OpenShell's code at commit d9a9196

Which was updated more recently, OpenShell or union?
OpenShell: its last push was on November 5, 2026, and union's on July 25, 2026.

The proof: NVIDIA/OpenShell's commits on GitHub

Which has more commits signed by AI, OpenShell or union?
OpenShell: an AI signed 0.3% of its commits, with Claude Code, Cursor, and GitHub Copilot.

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