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How we will do better for Australia

OpenAI apologizes for incidents involving Australian government websites and outlines stronger safeguards and support to strengthen Australia’s cyber defences.

Claude Sonnet 5.5

Quoting @joedaroo

Towards safety cases for frontier AI training

Our early guidelines for safety cases in frontier AI training cover technical safeguards, operational practices, and investigating misalignment incidents

Holo4: powering generalist computer-use agents

The Lenfest Institute grows landmark program with expanded OpenAI support

OpenAI is expanding the Lenfest AI Collaborative and Fellowship Program with $5 million in funding and up to $5 million in software credits and engineering support.

Quoting Muse AI Agent

Basis completes a tax workbook 2x faster with GPT-6 Astra

GPT-6 Astra completed a 50-tab tax workbook twice as fast as GPT-5.6 Sol, and its stronger understanding of user intent gives Basis more confidence in real-world use.

Are you a Codex Original?

We’re collecting real stories of builders, tinkerers, researchers, and creators who are using Codex to do incredible things. If you want to be a part of the next chapter of the Codex Originals program, tell us more about your story and project below.

2026 in LLMs (so far)

S3 Is the Future, S3 Is the Past

Bluesky reply bot checker

Kākāpō Party

Proaction boosts sales 60% and saves 75+ hours with Codex

With Codex, GPT-Live-1, and GPT-6 Astra, Proaction builds, operates, and sells modern fleet management faster.

Quoting John Gruber

Northern Gannet, Great Blue Heron, California Brown Pelican

Note on 24th September 2026

commit-rewriter 0.2

datasette 1.0a41

Accelerating vision-language models with LFM2.5-VL-DSpark

Ringg’s AI agents resolve up to 65% of customer calls with OpenAI

Using GPT-5.6, Ringg powers multilingual agents across voice, chat, WhatsApp, and web for 90% less cost vs. GPT-4.1.

We just shipped support for the ugliest part of HTTP: Vary

How to Use NVIDIA Warp and MjWarp to Accelerate Robotics Simulation and Learning Workflows

Gemini 3.8 TTS Playground

Shadow roots, explained with live examples

Two years of OpenAI Academy

Marking two years of OpenAI Academy and bringing AI skills to even more communities.

**Know Who Spoke When: Build Real-Time, Multi-Speaker AI with NVIDIA Nemotron 3 Diarization**

OpenAI extends cyber access to Ukraine for civilian defense

OpenAI is extending access to its Daybreak program to the Government of Ukraine to support the cyber defense of civilian infrastructure.

Sam Altman’s remarks at the United Nations Security Council

OpenAI CEO Sam Altman discusses AI safety, human control, and international cooperation in remarks to the United Nations Security Council.

Harvey turns legal context into stronger drafts with GPT-6 Astra

GPT-6 Astra produces more structured, context-aware legal documents, freeing lawyers to focus on strategy.

How invideo improves color grading 3x with GPT‑6 Astra

With GPT‑6 Astra, invideo plans edits with greater precision, improves color correction and grading threefold, and produces 50 custom effects in one day.

Introducing MentalHealthBench

MentalHealthBench is an expert-informed benchmark for evaluating helpful and safe AI responses across realistic mental health conversations.

SF October 14th: A Birds of a Feather Session on Agentic Engineering

ChatGPT Ads expands to Southeast Asia and Taiwan

ChatGPT Ads is expanding to Southeast Asia and Taiwan, giving eligible businesses new ways to reach people across more than 60 countries.

Airbnb widens access to GPT-6 Astra and OpenAI frontier models

Learn how Airbnb is expanding access to GPT-6 Astra and OpenAI frontier models to help engineering teams solve bugs, design systems, and ship faster.

Grab and OpenAI bring practical AI skills to Southeast Asia

OpenAI and Grab launch GO Forward with AI, a regional programme helping 30,000 partners build practical AI skills across Southeast Asia.

Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war

Better prompt caching for GPT-6

Learn how GPT-6 improves prompt caching with higher cache hit rates, new diagnostics, explicit breakpoints, and controls that reduce latency and costs.

llm 0.36

Quoting @therealcornpop

Introducing GPT-6 Sol and Luna

Meet GPT-6 Sol and Luna, two models that bring frontier intelligence to everyday work with different balances of capability and cost.

llm-anthropic 0.29

llm-typesafe 0.1a0

Parallel cut research time and cost in half with GPT‑6 Astra

GPT‑6 Astra allowed Parallel’s agents to research and synthesize labor-market data in half the time and at half the cost vs. prior models.

Priorities and principles for effective third party assessments

OpenAI outlines priorities and principles for rigorous, secure, and independent third-party AI safety assessments of frontier models and safeguards.

How UK AISI and EvalEval Are Making Benchmark Results Reproducible

Transformers now runs llama.cpp quants

Jun Kim, oMLX creator and maintainer, joins Hugging Face to support the MLX community

Jev introduces a new shape of LLM - System One, aka Decision Models

Cloudflare Python Workers are now generally available