#coding

News · 2026-10-05

textGrain detects long output, but 25% editing cuts it to 17%

OpenAI will add the invisible textGrain watermark to eligible ChatGPT and Codex output in the EU. In a test on 400-token passages, replacing a quarter of the words with synonyms cut detection from about 92% to 17%, making the mark mainly useful for lightly edited text.

News · 2026-10-04

Qwen without reasoning solved only 23.57% of sums written as words

A local Qwen3.8 27B run without reasoning solved 1,195 of 5,070 sums correctly, despite following the requested format in 96.17% of cases. The small experiment neatly separates producing the right shape of an answer from producing the right answer.

News · 2026-10-02

Chatham Financial Deploys ChatGPT Enterprise for Risk Management

The world's largest independent financial risk advisor has moved from isolated experiments to a full rollout of ChatGPT Enterprise. For corporate AI, this marks another breakthrough in a highly regulated sector.

News · 2026-09-29

DevDay showed OpenAI wants to own the agent’s entire workflow

OpenAI presented more than 20 DevDay 2026 announcements spanning Dots, GPT-6.1 Sol, Codex, APIs and enterprise distribution. Their count matters less than their shared direction: the model, runtime, permissions and software distribution are becoming one platform.

News · 2026-09-25

Codex moved 50 to 60% more Proaction deals into solution design

Proaction says personalized Codex demos increased the share of deals moving from initial contact into solution development by 50 to 60%. The most consequential change is that demo creation moved from the engineering queue to the salesperson.

News · 2026-07-16

Codex changes the prototyping of internal tools at OpenAI

OpenAI's creative team uses Codex to build small internal tools outside the main engineering roadmap. I cautiously rely on available corporate statements as the original report is not publicly available.

News · 2026-09-20

Why Developer Agents Still Need MCP: Simon Willison Responds to Criticism

Simon Willison pushes back on the narrative that Model Context Protocol (MCP) is obsolete. He argues the critique ignores the security and access isolation the protocol provides, even when running a full-blown terminal agent.

News · 2026-07-22

NTT DATA cut incident analysis to 30 minutes. Codex is moving into operations, not just the IDE

OpenAI positions NTT DATA Group as a customer deploying ChatGPT Enterprise and Codex across 9,000 employees. The key fact is cutting complex incident analysis time from three days of work by five engineers down to 30 minutes.

News · 2026-07-16

Codex deleted files where the agent had too much room to move

Simon Willison quotes Thibault Sottiaux on a Codex bug where GPT-5.6 unexpectedly deleted files. The quoted explanation points to full access mode, missing sandboxing, disabled auto review and a mistaken attempt to override the $HOME environment variable.

News · 2026-09-16

Everyone Wants to Be an Agent. Simon Willison on OpenAI's Shift

Simon Willison comments on the current market dynamics: the label "agent" is becoming the new standard for every AI product. It reminds him of the time OpenAI renamed the Codex desktop app straight to ChatGPT.

News · 2026-09-15

Meta moves WhatsApp Business setup to cloud agents

Meta is launching an official Model Context Protocol (MCP) server for the WhatsApp Business API, letting developers hand off routine administration and template testing to AI agents like Claude or Cursor.

News · 2026-09-10

OpenAI releases Codex as a control layer for long-running agents

OpenAI has made the Agents API available, built on the Codex model, which takes over context management and long-running sessions. This removes the need for development teams to build custom orchestration for tasks lasting days.

News · 2026-09-10

Multimodal chaining from concept to Blender model

Simon Willison demonstrated the practical use of multimodal models. He generated a conceptual image in a ChatGPT version, passed it to another visual model (Astra/Codex), and had it translated directly into executable code for the 3D editor Blender.

News · 2026-08-09

Bypassing the management layer: Yelling at an agent to read it itself

Autonomous LLM loops are starting to act like a corporation. Ethan Mollick pointed out the frustration with Codex, where the main model delegates tasks and loses context.

News · 2026-08-12

RingCentral Replaced the Manual with a Hackathon. Everyone Builds With Codex

Instead of training, RingCentral employees received ChatGPT Work and Codex, with a task: build your own app from scratch. It's a demonstration that AI adoption isn't driven by guidelines, but by giving tools directly to people.

News · 2026-09-01

How a Law Firm Governs and Scales AI with OpenAI

Law firm Gilbert + Tobin demonstrates how to safely scale the use of ChatGPT Enterprise and Codex. The focus is on rigorous governance, accountability, and human oversight.

News · 2026-08-12

Simon Willison builds database-agnostic sqlite-utils with Codex

Simon Willison tested the capabilities of Codex and GPT-5.6 Sol Ultra by building a prototype of alchemy-utils. The tool aims to port the API of his popular sqlite-utils library to SQLAlchemy and after model optimization, cut San Francisco trees import time from an hour to 35 seconds.

News · 2026-08-31

Polimill builds Japan's next-generation public AI infrastructure on OpenAI models

Japanese tech firm Polimill is using OpenAI's GPT and Codex models to build a new generation of administrative infrastructure. The goal is to help municipalities and public offices accelerate development and manage large knowledge bases more efficiently.

News · 2026-08-18

Asana clears five years of tech debt in two weeks using Codex

Replacing an outdated testing framework was originally estimated to take five years of human effort. Instead, Asana completed the migration in two weeks for twelve thousand dollars using OpenAI Codex.

News · 2026-08-20

Stampli compressed weeks of work into days using ChatGPT Work and Codex

Stampli used enterprise AI tools from OpenAI to meet a fixed launch deadline. It demonstrates how generative AI replaces missing design resources.

News · 2026-08-20

The AI ecosystem is becoming confusing even for those who follow it daily

Ethan Mollick highlights the growing fragmentation of the AI ecosystem. ChatGPT and Claude now span numerous modes and interfaces, making it harder to know where plugins, skills, memory, and files are available.

News · 2026-08-26

loveholidays saves 2,000 hours a week by making everyone a builder with Codex

European travel agency loveholidays accelerated internal tool delivery and data platform optimization using OpenAI Codex. For engineering teams, this demonstrates the real-world impact of agent deployment on company velocity and capacity.

News · 2026-08-24

Analysis of 500K papers shows Chinese models are becoming the baseline for research

Codex parsed half a million AI/ML publications on arXiv since the release of ChatGPT. Open American models are stagnating in research, while Chinese models, primarily Qwen, are now mentioned in 40% of papers.

News · 2026-08-12

OpenAI maps corporate AI: From offering advice to executing tasks

OpenAI released research on how enterprises deploy agentic AI. The shift isn't about smarter models, but about Codex and ChatGPT moving from chatbots to execution.

News · 2026-07-15

Codex got a $230 keyboard as OpenAI tests hardware for agent work

OpenAI launched Codex Micro, a $230 limited-run keyboard co-designed with Work Louder for controlling Codex agents. As a mass product it looks thin. As a signal for future agent workflows, it is more interesting.

News · 2026-08-04

OpenAI packs Work and Codex into education plugins for teachers and students

OpenAI is shipping three education plugins for ChatGPT Work and Codex: one each for K-12 teachers, college faculty, and college students. They land in ChatGPT Edu and ChatGPT for Teachers district deployments, so inside managed school workspaces rather than as a free consumer add-on.

News · 2026-08-03

Circles with OpenAI reports 22% ARPU lift and 65% autonomous telco support

Singapore-based Circles built multi-agent CareX and Xplore IQ personalization on the OpenAI API. At Circles.Life Singapore it reports 22% higher ARPU, 9% lower churn and 65% autonomous support resolution.

News · 2026-07-27

AI buying guides moved past chat. They now pick who gets a computer

Ethan Mollick’s summer guide tells most people to pick Claude or ChatGPT from $20 a month and give an agent a computer. Simon Willison frames the shift: the hard choice is now the agent harness and what you allow it to touch.

News · 2026-07-22

Project Camellia offers Effingham County a framework for a data center bargain

OpenAI presented Project Camellia as 3.2 GW of infrastructure delivered in phases from 2028 to 2032. It promises closed-loop water cooling, $80 million in community benefits and up to $71 million in Codex credits, but independent grid studies and incentive terms will determine the project’s real cost.

News · 2026-07-09

Codex running for hours turns chat into delegated work

Ars Technica says OpenAI has reframed Codex around independent workflows that can run for hours. For teams, the hard part is not code generation, but supervising an agent while it works.

Library

Coding agents — when the model touches the repo

Claude Code, Codex and friends are not magical juniors. They are a closed loop: read code, edit, verify, repair. Build verification as infrastructure, or you just mint technical debt faster.

Library

Agent context contracts — local rules the model must not guess

A context contract states a project’s local rules: what an agent may change, how it should proceed, how to verify a change, and when to hand work to a person. It limits guesswork where a general prompt is insufficient.