Codex is OpenAI's AI coding agent, used to write and modify code and offered through the API, ChatGPT and developer tools. Recent coverage includes its addition to Android Studio's "Bring Your Own Agent" feature alongside more than 40 coding agents, twentyfold growth in weekly Codex users in Germany since January, and the half-price GPT-6.1 Terra model becoming available in Codex. Legora, Retell and Greptile also describe using Codex in legal, voice and bug-detection workflows.
GPT-5.6 Sol beats Factorio on peaceful modeA developer had GPT-5.6 Sol run in Codex at low thinking level and complete a peaceful-mode Factorio run in 13.5 hours of game time. The author says it improved on GPT-5.5 by using transport belts at all, but late-game system connections still relied on ferrying supplies manually.
AI agents manage fantasy soccer team, still trail humansA WIRED writer let AI agents like Codex run a fantasy soccer team to test predictive skills. The agents initially tried to bench Erling Haaland but later corrected course; overall they were not yet better than humans.
Google Opens Android Studio to Third-Party AI AgentsGoogle's Android Studio now supports over 40 coding agents, including Anthropic's Claude Agent and OpenAI's Codex, via a 'Bring Your Own Agent' feature. Google says new terminal tools let agents finish UI tasks 77% faster using up to three times fewer tokens, making Android development more agent-centric.
OpenAI Berlin DevDay: Dots Heads to EuropeAt DevDay Exchange in Berlin, OpenAI said the Dots assistant will roll out more widely in Europe in a few weeks, and weekly Codex users in Germany have grown twentyfold since January. With repeated nods to ChatGPT's 1.2 billion weekly users, OpenAI is pushing developers to build on its platform.
Legora builds agentic operating system for legal work with OpenAILegal tech firm Legora uses OpenAI models, ChatGPT and Codex to speed up legal workflows and expand contract analysis, freeing lawyers for higher-value work, showing AI agents moving deeper into professional services.
Mathematicians' Dispute Fuels Fears AI Could Undermine ScienceOpenAI said its AI agents solved a Navier–Stokes-related math problem in 88 hours, but NYU mathematician Tristan Buckmaster raised concerns beforehand that drafts stored in Codex might have fed OpenAI's work; OpenAI denied that anyone there saw the other team's work.
Retell hits 100M monthly calls with OpenAI modelsRetell uses OpenAI models to power 100M monthly calls, with GPT-6 Astra topping its voice agent benchmark and Codex helping reach $1.6M annual revenue per employee.
When agents write the code, what must developers still know?A developer describes Codex writing complex components on single lines, tripping SonarQube's complexity check, then fixing it by refactoring into ten files. The incident frames a broader question: as agents produce more code, how should developers' understanding and ownership of systems change.
Papers with Code relaunched as open-source projectA revived Papers with Code, the site Meta acquired and later shut down, is now open-source under Apache 2.0 and seeks community contributions. The submitter built it over months with Claude and Codex, using a FastAPI backend and React frontend on a Hetzner VPS, with the monorepo hosted under Hugging Face's GitHub account and a public API and MCP server.
OpenAI launches always-on assistant dots, built from coding toolsOpenAI executive Alexander Embiricos said dots reframes coding-tool experience, like Codex, into a single always-on assistant entity that keeps working in the background. It is available to ChatGPT Pro-tier subscribers and above, starting at $100 a month, and connects to calendars, email and computers. He said the challenge is making it intuitive, not adding new tech.
OpenAI launches half-price GPT-6.1 Terra modelOpenAI released GPT-6.1 Terra, with standard API prices 50% below GPT-5.6 Terra and GPT-6.1 Sol. It targets high-volume automation such as invoice entry and is available in ChatGPT Work, Codex and the API. Bloomberg reported annualized revenue is expected to reach at least $70 billion by year-end.
Greptile takes bug detection beyond code review with GPT-6 AstraGreptile is using GPT-6 Astra to test user workflows, Daybreak to strengthen security and Codex to cut rework, extending bug detection beyond code review.
PaperPilot: Pure-Rust Local PDF Toolkit with WASM and MCPPaperPilot is a PDF and document toolkit written in Rust that runs locally, ensuring files never leave the user's machine. It serves as an MCP server to provide PDF merging and other capabilities to MCP clients like Codex and Claude Code, and can be tried in the browser via WASM.
Corgi, an open-source agent and terminal multiplexerA developer released Corgi, a Herdr-inspired agent multiplexer that unifies Codex, Claude Code and Pi sessions. It offers activity feeds, jump-to-next-unread, link copying, image paste/preview and CPU/GPU usage tracking to improve terminal ergonomics.
Switch 2 jailbroken with an old game and AIModder pepsipu says the Nintendo Switch 2 has been jailbroken and is running a custom Mario Kart World with added characters like Cinnamoroll, Peter Griffin, and Steve from Minecraft. OpenAI's Codex reportedly helped build the 'ns2jb' exploit.
Omnara Releases Open-Source Durable Agent APIOmnara has launched an open-source API for running durable AI agents, with sandboxes, secrets management, permissions, and RBAC, storing state in Postgres so agents survive restarts and cost nothing when idle. Positioned as an open-source alternative to Claude Managed Agents and the OpenAI Agents API, it can be self-hosted with users' own models.
Trail of Bits launches AI agent patching and regression pluginsTrail of Bits released patching-bugs and regression-hunt plugins to delegate bug fixes and regression checks to agents; regression-hunt produced 25% fewer false positives than a baseline Codex agent. Its review of 130+ merged Patch the Planet PRs confirmed 21 regressions, none breaking security protections.
OpenAI models are coming to Google CloudOpenAI and Google Cloud are teaming up to bring OpenAI frontier models and Codex workflows to Gemini's Model Garden, available via Google Cloud Marketplace. The move puts OpenAI models on a rival cloud platform, reflecting demand for multi-cloud distribution.
Researchers show edited open models can hide backdoorsA technical post demonstrates that any open model with edited weights can carry a backdoor, including fine-tunes, merged adapters and abliterated builds. The authors cheaply backdoored 1.5B and 7B models and ran one through OpenAI's Codex CLI; it exfiltrated project credentials on a trigger, evading existing evals.
Sphinx launches Git hook that quizzes developers on AI code before pushSphinx is an open-source Git hook that plugs into coding agents such as Codex, Claude Code and Cursor, quizzing developers on their diff before a push; wrong answers require another try, right ones let the push proceed. It runs on minimal tokens via OpenAI-compatible endpoints, and sphinx yolo skips checks with each skip logged.
OpenAI: Benefit Street Partners uses Codex to speed credit analysisOpenAI published a case study saying Anant Kumar at Benefit Street Partners uses Codex for code review and faster follow-ups; his tools compare loan valuations and analyze credit agreements. It shows Codex applied to real financial workflows.
Stack Overflow for Agents triples signups with ChatGPT pluginTwo engineers built Stack Overflow for Agents in weeks with Codex, and its ChatGPT plugin helped drive up to 10x growth in agent creation.
Graphicle Brings Code Graph and Memory to Coding AgentsGraphicle, a Rust port of Graphify, maps a repository into a code graph and recalls docs and past agent sessions, giving coding agents cited file-and-line excerpts. It runs locally with no API key, account or telemetry, and works with Claude Code, Cursor, Codex and other MCP clients.
Third Moment Research runs 10,000 agents for 36+ hoursThe AI lab uses GPT-6 Astra, GPT-6.1 Sol, Codex, and the cybersecurity tool Daybreak to build agents that stay focused for days and improve with use, demonstrating large-scale long-running agent deployments.
Developer Uses OpenAI Subscription and MCP to Turn PDFs Into AudiobooksA Hacker News post shows users can add a PDF TO MP3 MCP server in Codex and authenticate, using their existing OpenAI subscription to process documents while paying per use for speech generation to turn PDFs into audiobooks.
Pensieve local indexing cuts coding-agent tool callsLocal indexing tool Pensieve connects over MCP so coding agents can retrieve the few relevant code passages with file and line numbers in one call. In its benchmark, agents using Pensieve averaged 2.0 tool calls per lookup versus 3.4 with grep.
Are Jupyter Notebooks Outdated in the Agentic Era?A data scientist asks whether Jupyter Notebooks, built around code cells, still fit classical ML workflows now that LLMs and agents write much of the code, or whether the abstraction should shift from code-to-output toward prompt-to-result. The post invites community views.
Simon Willison builds blog feature using voice modeDeveloper Simon Willison used the voice conversation mode in the Codex tab of the ChatGPT desktop app to build a new Newsletters page for his blog while cooking dinner. The feature, built with the GPT-6 Astra High model, included a new model, migration, view code, templates, and import functions.
Asana cuts model costs 76x with GPT-6.1 SolUsing GPT-6 Astra in Codex, Asana made its browser agent 76x cheaper and 5x faster in tests, enabling more capable models for customers.
Oracle speeds workflows with ChatGPT and CodexOracle uses ChatGPT Work and Codex across recruiting, engineering, and operations to turn specialist knowledge into fast, repeatable workflows, turning days of work into minutes.
The A.I. Daily