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OpenAI Codex
risingPositive
vs
competes with (2)
Claude Code logo
Claude Code
stablePositive
Est. 2025·San Francisco, CA
Coverage (30d)
2vs103
This Week
1vs26
Evidence
6 articles
Relationships
1
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Timeline

Claude Code2026-07-02

Technique documented for using CLAUDE.md with decision matrices to reduce migration errors

Claude Code2026-07-01

Teams shift to hard guardrails and Bash hooks reduce Anthropic bill by 50%

Claude Code2026-06-29

Developer adds two Bash hooks to Claude Code to reduce retry costs

Claude Code2026-06-25

Claude Code is an agentic coding tool that executes shell commands and installs dependencies autonomously.

Claude Code2026-06-25

Florian built and released /grill-me guardrail command for Claude Code

OpenAI Codex2026-06-15

OpenAI Codex reached 5 million weekly users

Claude Code2026-06-15

Agentic credit split takes effect, moving claude -p and CI workflows to separate billing bucket

OpenAI Codex2026-04-08

Weekly active users grew from 2M to 3M in under a month, a 50% increase

OpenAI Codex2025-12-26

OpenAI Codex agent launched as an autonomous coding tool

Ecosystem

OpenAI Codex

usesGitHub Copilot3 src

Claude Code

usesModel Context Protocol73 src
usesGitHub13 src
competes withCursor13 src
competes withGitHub Copilot12 src
usesClaude Opus 4.69 src
usesClaude Sonnet 4.67 src

Benchmarks

swe-pro
OpenAI Codex
Claude Code69.2
terminal-2
OpenAI Codex
Claude Code78.9
swe-verified
OpenAI Codex
Claude Code88.6

Evidence (6 articles)

Related Comparisons