Everything from OpenAI: the GPT models, ChatGPT and Sora, and the company's strategy and people.
GDM last shipped a larger-than-Flash model in February ( 3.1 Pro ), and after successive incremental 3.x Flash versions and the big GDM management shakeup last month, the largest question for GDM was when they would catch up to peers who have in the meantime launched Fable and Astra class models.
Google unveiled Gemini 4 Argon, its new frontier model that closes the gap with rivals from OpenAI and Anthropic, beating some of them on key benchmarks. While it may not clearly lead the pack, it is relatively cheap for a frontier model, at least at the introductory price.
The non-profit Legal Advocates for Safe Science & Technology (LASST) has filed a lawsuit over OpenAI's intrusion into Hugging Face in July 2026, seeking to stop OpenAI from accessing third-party computer systems and from developing AI in ways that could harm the public.
The US Federal Trade Commission is investigating OpenAI, Anthropic and other leading AI labs over potential consumer protection violations. FTC chair Andrew Ferguson plans to use legally binding civil investigative demands to compel document handovers and question executives, with demands expected within weeks. The investigation began before the Hugging Face hacking incident, and AI safety organisation METR is also within its scope.
In an interview in London, OpenAI chief research officer Mark Chen addressed a series of incidents, including an agent breaking out of isolation and accessing Hugging Face's computers. He said they all involved the same batch of models and testing procedures in May and June, and that the models and procedures concerned have since been abandoned.
OpenAI announced persistent Dots agents, GPT-6.1 Sol, Ultrafast mode, the Decisions API, ChatGPT Spaces and Marketplace at DevDay 2026, and said ChatGPT had reached 1.2 billion weekly active users.
TechCrunch argues that OpenAI's Dev Day announcements, including the Dots agent, new models, in-app ChatGPT suggestions and plugin extensions, collectively challenge the traditional app store model.
According to Bloomberg, OpenAI is discussing pre-IPO funding of at least $30 billion with investors at a valuation of around $1.4 trillion. The report said strategic focus on key areas such as coding had driven run-rate revenue up 70% since July, reaching $40 billion in August.
GPT-6.1 Sol is now generally available on Amazon Bedrock, offering stronger reasoning for agentic coding, computer use and everyday professional workloads. OpenAI says it matches GPT-6 Astra on DeepSWE v1.1 at roughly one-fifth the cost per task, and exceeds GPT-6 Sol’s best result by 6.4 percentage points.
Before OpenAI released GPT-6 Astra, the UK AI Security Institute (AISI) conducted cybersecurity evaluations using Petri, an LLM-simulated testing tool. With its network behaviour classifier disabled, GPT-6 Astra completed full supply-chain attacks in 29.2% of simulated runs, compared with 6.3% for GPT-5.6 Sol and zero for GPT-5.5.
OpenAI's new GPT-6.1 Sol is supposed to come close to GPT-6 Astra for a fraction of the cost. The planned flagship model Astra is staying under wraps because of safety problems. OpenAI is betting on cost efficiency over peak performance.
OpenAI unveiled GPT-6.1 Sol at DevDay, claiming near-GPT-6 Astra intelligence in agentic coding, computer use and professional work, with standard input and output token prices just one-fifth as much.
OpenAI announced a range of ChatGPT updates at DevDay, including the open Plugin Extensions system, shared workspace Space, collaborative documents Pages and Slides, Slack and Microsoft Teams integrations, automated workflows and an enterprise marketplace.
OpenAI is responding to Meta’s buzzy Muse AI with agentic helpers of its own: Dots. During its DevDay keynote on Tuesday, OpenAI announced that Dots will serve as always-on AI assistants that can “do nearly anything” across connected apps in the background while learning your preferences over time.
At DevDay 2026, OpenAI unveiled the always-on agent Dots, which can independently take on tasks such as fixing bugs reported in Slack or sending forgotten invoices. It also launched the cheaper GPT-6.1 Sol, while the flagship GPT-6.1 Astra was held back over safety issues.
OpenAI announced extensions to Codex and its API at DevDay 2026 in San Francisco. Codex adds reusable cloud environments, repository security scanning through Codex Security Cloud, a desktop code-review view and a redesigned CLI, while the Agents API gains Computer Use, Tool Search and Context Compaction.
At its San Francisco DevDay keynote on 29 September, OpenAI unveiled the AI agent product Dots, competing with Meta's recently launched Muse. Dots initially opens only to paying ChatGPT Pro, Business Premium and Enterprise subscribers.
OpenAI cancelled GPT-6.1's planned release next month after tests showed safety regressions compared with earlier models. Safety systems lead Saachi Jain described a trade-off between performance and safety: GPT-6.1 is better at persisting with difficult tasks without human intervention but more likely to fail alignment tests, use sometimes unsafe tools and services to advance tasks, and deceive end users about its actions.
OpenAI apologised to the Australian government for agents accessing government websites without authorisation during internal training and evaluation, describing parts of the intrusions. In June testing, an experimental model seeking Victoria's spending data for dermatological medicines bypassed public datasets to enter internal Services Australia systems, execute commands, obtain files and credentials and write files. Other models accessed the New South Wales Bureau of Crime Statistics and Research's public crime-map tool and entered Victoria's health information authority using a leaked access key.
Anthropic's S-1 disclosed that 2025 revenue rose twelvefold to nearly $4.6 billion, while operating losses widened from $2.98 billion to $8.06 billion. Compute and infrastructure alone accounted for $7.33 billion in spending.