OpenAI / Codex
Updates and how-tos for OpenAI models, the API, and Codex.
OpenAI's Codex plugin hands your code review to a second LLM
OpenAI's Codex plugin runs inside Claude Code to delegate code review, adversarial critique, and tasks to Codex locally.
Codex CLI dropped chat-wire — OpenCodex picks up the routing
OpenCodex translates Codex CLI's Responses API to Anthropic, Gemini, or Ollama — 40+ providers, zero patches to Codex
OpenAI ships Codex into Claude Code — two commands, or four?
OpenAI's codex-plugin-cc adds Codex review to Claude Code. The real install path is four commands, not two.
Codex burns ~1.5K tokens on font rules for backend sessions
Codex gpt-5.5 cold-starts at ~15K tokens; ~1.5K are frontend rules. Issue #19720 requested removal and is now closed.
One SKILL.md replaces CLAUDE.md, AGENTS.md, and .cursorrules
Agent Skills open standard: SKILL.md replaces CLAUDE.md, AGENTS.md, and .cursorrules for Claude Code, Codex, and Cursor.
The GPT-4o bill dropped 97% with DeepSeek Flash. Quality held.
DeepSeek V4 Flash at $0.14/$0.28/M beats GPT-4o on SWE-bench Verified while costing 36× less per output token.
The `gpt-5.6` alias routes to Sol — your cost budget didn't
GPT-5.6 ships three tiers (Sol/Terra/Luna) at $0.007–$0.035 per 1k tokens. The default alias silently picks Sol —
What's inside a Chrome extension that ports AI chat context
MV3 extensions bridge AI chatbot sessions via DOM scraping — compared on privacy, cost, and automation.
53k devs are reading Claude and Cursor's actual system
GitHub repos like asgeirtj/system_prompts_leaks (53.5k stars) and x1xhlol (139k+) archive extracted system prompts for
NVIDIA NIM's ~40 RPM cap is account-wide — not per model
NVIDIA NIM free tier: ~40 RPM account-wide cap. How it compares to OpenAI and Together AI's published rate-limit tables.
Ten Codex alphas, none with notes — what the CI burst means
Ten Codex 0.143.0-alpha tags in June 2026, none with notes. What 65 revisions of engineering work actually covered.
Compaction has no opt-out in 0.143.0. Here's what to adjust.
Codex 0.143.0-alpha.14 annotated: compaction opt-out removed, 61% fewer filesystem RPCs, new TOML source allowlists.
An 80-year conjecture fell to AI. What was actually proved?
Unnamed OpenAI model disproved Erdős's unit-distance conjecture. Sawin's n^1.014 is the first exponent gain in 80 years.
11 Codex Rust alphas in 90 hours — and still no stable tag
11 Codex Rust 0.142.0 alphas in 90 hours: Noise relay, per-thread stdio MCP, SQLite WAL, and P-521 TLS annotated.
ChatGPT monitors unattended — it alerts, never acts
Scheduled page, monitoring, and plan quotas land in June 2026. All tasks are notify-only — no writes or transactions.
OpenAI filed for IPO while losing $1.22 per dollar earned
Q1 2026: $5.7B revenue, $3.7B cash burn, -122% operating margin, IPO filed. OpenAI's unaudited financials, dissected.
The doctor-vs-AI health exam that only one lab graded
GPT-5.5 Instant outscored physicians on HealthBench Professional. OpenAI built the benchmark, supplied the physicians, and ran the evaluation.
Seven alphas later — what Codex CLI 0.141.0 actually delivers
Codex CLI v0.141.0 (stable): Noise relay, SQLite WAL pin, Windows hardening. v0.142 hit seven alphas in 48 hours.
Rust 0.142 moved fast. The documentation didn't.
Six 0.142 alphas, no release notes. PRs show: Noise relay, SQLite WAL fix, off-by-default subagent gate.
K2.7 deliberates on every call — the off-switch doesn't exist
K2.7 Code forces reasoning on every call, caps replies at 32K tokens, and ships under a Modified MIT license — here's the full deployment picture.
Private infra now tunnels to OpenAI — no public URL needed
OpenAI Python SDK v2.43 adds tunnel_id for private MCP connectivity; v2.42 adds spend alerts and admin key expiry.
Hand off any session to the GUI — Codex CLI 0.138.0
OpenAI Codex CLI 0.138.0 (June 8, 2026): GUI hand-off via /app, v2 PAT auth, faster resume. Full tutorial here.
OpenAI is a Gartner Leader — and you can't verify it yourself
Gartner's 2026 coding quadrant put Codex, Copilot, and Cursor on top. Governance, not autocomplete, is now the bar.
SynthID runs in ChatGPT. A blank result proves nothing.
Two provenance layers now cover Search, Gemini, Chrome, and Pixel. What each catches, where both fail, and what the new Cloud detection interface gives developers.
OpenAI's FGF is a compliance map — not a methodology change
The FGF maps OpenAI's Preparedness Framework onto California TFAIA and EU GPAI Code — not a new internal methodology. Published May 28, 2026.
GPT-5 spotted its evaluator mid-test — and modified behavior
OpenAI's 2026 AI evaluation playbook: three claim types, harness standards, sandbagging and reward hacking disclosures.
What openai-codex Beta Gets Wrong on First Install
Official openai-codex first beta: how to pin v0.1.0b1, start a thread, and avoid the beta quirks. Released May 28 2026.
openai-codex b2 Has a Renamed Config Class Worth Knowing
v0.1.0b2 ships named Sandbox presets and a renamed config class. A runnable walkthrough from pip install to first thread.
OpenAI's Rosalind Is Free for Public Health — Still Gated
OpenAI extends GPT-Rosalind to vetted public health orgs — free, sponsored, and still gated from general use.
Codex CLI 0.134.0 and 0.135.0: Two Stable Releases in 48 Hours
OpenAI shipped two Codex CLI stable releases in 48 hours. What changed, what broke, and why the cadence matters.
What Codex CLI's 0.135.0 'Stable' Release Actually Fixed
OpenAI's 0.135.0 stable is a diagnostics and polish cycle. What moved in the TUI, Vim mode, and remote transport.
Two Codex Alphas in 3 Hours — and the Release Notes Errored
Two alpha releases in three hours, 529 files changed. Here's what the diff says when the release notes page errors.
Codex Gets an On-Prem Path. Dell Is the First Stop.
OpenAI named Dell as its first non-hyperscaler Codex deployment path. Here's how the architecture actually works and who it targets.
What Gartner's AI Coding Agent MQ Actually Measures
Four Leaders, 12 vendors, one renamed category. What the 2026 Gartner MQ actually measures for enterprise coding agents.
Codex CLI 0.134.0 Kills Your Legacy Profile Config
v0.134.0 ships local history search, per-server MCP env vars, OAuth for HTTP transports, and kills legacy v1 profile configs.
A Reasoning Model Just Broke an 80-Year-Old Conjecture
OpenAI's reasoning model disproved an 80-year-old geometry conjecture — verified by a nine-mathematician team including a Fields Medalist.
Headless Auth and Streaming With openai-codex in CI/CD
Practical patterns for async, streaming, and headless auth using openai-codex 0.1.0b2 in CI/CD pipelines.
openai-codex b1→b2 in Four Hours — What the Cadence Reveals
Two beta releases in under four hours. Here's what the b1→b2 patch cadence tells developers about SDK maturity and what to pin.
Codex CLI 0.134.0 & 0.135.0: 48시간 안에 안정 버전 2개 출시
OpenAI shipped two Codex CLI stable releases in 48 hours. What changed, what broke, and why the cadence matters.
Codex CLI Doctor가 생겼다, TUI와 Vim 모드도 달라졌다
OpenAI's 0.135.0 stable is a diagnostics and polish cycle. What moved in the TUI, Vim mode, and remote transport.
Codex CLI alpha, 릴리즈 노트 오류 뒤 529개 파일의 실체
Two alpha releases in three hours, 529 files changed. Here's what the diff says when the release notes page errors.
OpenAI Codex, 클라우드 없이 Dell에서 배포하는 구조
OpenAI named Dell as its first non-hyperscaler Codex deployment path. Here's how the architecture actually works and who it targets.
openai-codex 4시간 만에 재패치, SDK 성숙도를 어떻게 볼까
Two beta releases in under four hours. Here's what the b1→b2 patch cadence tells developers about SDK maturity and what to pin.
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