Source: https://seerepo.com/compare/openai/codex/vs/vectordotdev/vector
Markdown source: https://seerepo.com/compare/openai/codex/vs/vectordotdev/vector.md
Description: codex and vector share 9 technologies: axum, lru, Tokio, tower, Ratatui, crossterm, tracing, tracing-subscriber, and log. Both are written in Rust.

# codex vs vector

codex and vector share 9 technologies: axum, lru, Tokio, tower, Ratatui, crossterm, tracing, tracing-subscriber, and log. Both are written in Rust.

- [openai/codex](https://seerepo.com/r/openai/codex): Lightweight coding agent that runs in your terminal
- [vectordotdev/vector](https://seerepo.com/r/vectordotdev/vector): A high-performance observability data pipeline.

## What they share and what sets them apart

- In common: axum, lru, Tokio, tower, Ratatui, crossterm, tracing, tracing-subscriber, log
- Only in codex: SQLite, Sentry, objc2-app-kit, objc2-foundation, keyring, hmac, rmcp, png, image, pulldown-cmark, zip, schemars, Pydantic, tracing-appender
- Only in vector: aws-sdk-s3, sqlx-postgres, tokio-postgres, Redis, MongoDB, aws-sdk-kinesis, opendal, Postgres, sqlx, Kafka, AWS S3, warp, Tailwind CSS, indicatif, aws-sdk-sts, azure_identity, parquet, quick-xml, csv, handlebars, jsonschema, metrics, azure_core, tracing-core, aws-sdk-iam

## Side by side

| | codex | vector |
|---|---|---|
| Size | 2,320,674 lines written, 4,216 code files | 472,373 lines written, 1,238 code files |
| Who writes it | 2.8% of its commits signed by AI. With Codex, Claude Code, and GitHub Copilot | 0.9% of its commits signed by AI. With Claude Code, Cursor, and GitHub Copilot |
| Activity | Last push November 4, 2026, 13,099 commits, 133,103 stars | Last push November 4, 2026, 14,656 commits, 22,799 stars |
| Tests | 2,448 test files. 51.6% of its code files have a test that imports them | 242 test files. 28% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, codex or vector?

codex, with 2,320,674 lines written; vector has 472,373.

The proof: [openai/codex's code at commit 021fccb](https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)

### Which has more GitHub stars, codex or vector?

codex, with 133,103 stars; vector has 22,799.

The proof: [openai/codex on GitHub](https://github.com/openai/codex)

### Which has more tests, codex or vector?

codex, with 2,448 test files; vector has 242.

The proof: [openai/codex's code at commit 021fccb](https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)

### Which was updated more recently, codex or vector?

Both got their last push on November 4, 2026.

The proof: [vectordotdev/vector's commits on GitHub](https://github.com/vectordotdev/vector/commits)

### Which has more commits signed by AI, codex or vector?

codex: an AI signed 2.8% of its commits, with Codex, Claude Code, and GitHub Copilot; in vector, 0.9%.

The proof: [the commits each tool signed in openai/codex](https://seerepo.com/r/openai/codex/ai)

## Sources

- openai/codex: Read on November 4, 2026, at commit 021fccb (https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)
- vectordotdev/vector: Read on November 4, 2026, at commit 1bac1b8 (https://github.com/vectordotdev/vector/tree/1bac1b840fd5071a35cb8a1c66a857c3a555c9ca)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.