codex vs grok-build
codex and grok-build share 27 technologies: axum, SQLite, Sentry, Tokio, tower, Ratatui, crossterm, ansi-to-tui, oauth2, jsonwebtoken, hmac, rmcp, bm25, image, pulldown-cmark, zip, linkify, quick-xml, schemars, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, log, opentelemetry-otlp, tracing-appender, and opentelemetry-http. Both are written in Rust.
LinkedInWhat they share and what sets them apart
openai
codex
Lightweight coding agent that runs in your terminal
Rust133.9kRead on November 9, 2026, at commit 6107b98What is codex built with?Only in codex
- codex-attachment-store
- codex-cloud-tasks-client
- codex-queue-extension
- codex-thread-store
- codex-utils-cache
- sqlx-sqlite
- sqlx
libsqlite3-sys
- lru
rama-http
- tiny_http
objc2-app-kit
- two-face
- codex-tui
- ratatui-macros
- sqlx-macros
- codex-aws-auth
- codex-keyring-store
- codex-login
- codex-user-verification
- codex-websocket-auth
- codex-workload-identity
- keyring
- ed25519-dalek
- codex-agent-graph-store
- codex-agent-identity
- codex-agent-message-board-client
- codex-agent-message-board-extension
- codex-agent-roles
- codex-chatgpt
- codex-client
- codex-code-mode-runtime
- codex-collaboration-mode-templates
- codex-context-fragments
- codex-core-plugin-common
- codex-extension-api
- codex-external-agent-migration
- codex-guardian-context
- codex-guardian-reviewer
- codex-image-generation-extension
- codex-lmstudio
- codex-mcp
- codex-mcp-extension
- codex-memories-extension
- codex-memories-read
- codex-memories-write
- codex-message-board-mcp
- codex-model-provider
- codex-model-provider-info
- codex-models-manager
- codex-ollama
- codex-plugin-host
- codex-prompts
- codex-protocol
- codex-response-debug-context
- codex-runtime-agent-instance
- codex-skills
- codex-skills-extension
- codex-tools
- codex-web-search-extension
openai-codex-cli-bin
- codex-mermaid
- codex-utils-image
- codex-utils-template
- png
- symphonia
- Pydantic
- codex-otel-trace-websocket
- codex-rollout-trace
- tracelogging
- opentelemetry-semantic-conventions
opentelemetry-appender-tracing
In common
xai-org
grok-build
SpaceXAI's coding agent harness and TUI. Fullscreen, mouse interactive, extensible.
Rust27.7kRead on November 8, 2026, at commit 2bdd1d6What is grok-build built with?Only in grok-build
aws-sdk-s3
- moka
sqlite-vec
OpenAI- axum-server
- anstyle
- fontdb
alacritty_terminal
- ratatui-core
- indicatif
- tiny-skia
- async-openai
agent-client-protocol
- kamadak-exif
minijinja
- infer
- htmd
html-escape
- pdf_oxide
- resvg
- scraper
- jsonschema
- prometheus
- fastrace-opentelemetry
- env_logger
- prometheus-parse
- tracing-chrome
Side by side
codexgrok-build
SizeLines written by people and agents, without generated ones; code files, without tests.
codex2,374,591 lines written4,286 code files
grok-build1,982,128 lines written2,511 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.
codex2.7% of its commits signed by AIWith Codex, Claude Code, and GitHub Copilot
grok-build0% of its commits signed by AI
ActivityFrom GitHub and its history, on the day SeeRepo read it.
codexLast push November 9, 202613,317 commits133,900 stars
grok-buildLast push September 29, 202651 commits27,712 stars
TestsThe files that test the code, and the share of code files a test imports.
codex2,509 test files51.9% of its code files have a test that imports them
grok-build1,077 test files52.1% of its code files have a test that imports them
Frequently asked questions
Which is bigger, codex or grok-build?
codex, with 2,374,591 lines written; grok-build has 1,982,128.
The proof: openai/codex's code at commit 6107b98
Which has more GitHub stars, codex or grok-build?
codex, with 133,900 stars; grok-build has 27,712.
The proof: openai/codex on GitHub
Which has more tests, codex or grok-build?
codex, with 2,509 test files; grok-build has 1,077.
The proof: openai/codex's code at commit 6107b98
Which was updated more recently, codex or grok-build?
codex: its last push was on November 9, 2026, and grok-build's on September 29, 2026.
The proof: openai/codex's commits on GitHub
Which has more commits signed by AI, codex or grok-build?
codex: an AI signed 2.7% of its commits, with Codex, Claude Code, and GitHub Copilot.
The proof: the commits each tool signed in openai/codex
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