cog vs union
cog and union share 8 technologies: net/http, axum, Tokio, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, and opentelemetry-otlp. cog is written in Go and union in Rust.
LinkedInWhat they share and what sets them apart
replicate
cog
Containers for machine learning
Go9.5kRead on November 15, 2026, at commit ee8ae12What is cog built with?Only in cog
- Sentry
- github.com/tonistiigi/go-csvvalue
- github.com/getkin/kin-openapi
- github.com/xeipuuv/gojsonschema
- jsonschema
structlog
- Docker
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 12, 2026, at commit 031785bWhat is union built with?Only in union
- async-graphql
- async-graphql-axum
- tower
- Gorilla
cometbft-rpc
- cosmos-client
- depolama
- sqlx-postgres
- cosmossdk.io/store
cw-storage-plus
- Postgres
- moka
github.com/cosmos/cosmos-db
- sqlx
github.com/cosmos/cosmos-sdk
- cosmossdk.io/core
- cosmossdk.io/x/upgrade
github.com/cometbft/cometbft/api
github.com/CosmWasm/wasmd
- cosmossdk.io/api
- wasmtime
- Svelte
- SvelteKit
- Supabase
- @effect/platform
- SQLite
- cliclack
- console
- Ratatui
- crossterm
- throbber-widgets-tui
- access-managed
- access-manager-types
bip32
- ed25519-dalek
- schemars
- cosmossdk.io/log
- github.com/rs/zerolog
- cw-orch
- Tailwind CSS
tailwind-merge
@number-flow/svelte
- rehype-rewrite
rehype-stringify
- remark
- remark-parse
unified
vfile
- @effect/opentelemetry
Side by side
cogunion
SizeLines written by people and agents, without generated ones; code files, without tests.
cog114,111 lines written254 code files
union468,416 lines written1,876 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.
cog0.8% of its commits signed by AIWith GitHub Copilot and Claude Code
union0% of its commits signed by AIWith CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
cogLast push November 7, 20262,234 commits9,498 stars
unionLast push July 25, 202613,299 commits73,714 stars
TestsThe files that test the code, and the share of code files a test imports.
cog183 test files62.6% of its code files have a test that imports them
union120 test files10.2% of its code files have a test that imports them
Frequently asked questions
Which is bigger, cog or union?
union, with 468,416 lines written; cog has 114,111.
The proof: unionlabs/union's code at commit 031785b
Which has more GitHub stars, cog or union?
union, with 73,714 stars; cog has 9,498.
The proof: unionlabs/union on GitHub
Which has more tests, cog or union?
cog, with 183 test files; union has 120.
The proof: replicate/cog's code at commit ee8ae12
Which was updated more recently, cog or union?
cog: its last push was on November 7, 2026, and union's on July 25, 2026.
The proof: replicate/cog's commits on GitHub
Which has more commits signed by AI, cog or union?
cog: an AI signed 0.8% of its commits, with GitHub Copilot and Claude Code.
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