GPT-5.5 Appears in OpenAI Codex Selector but Returns 400 Error, Currently Unavailable

Sam Altman Responds to Home Attacks in Podcast, Predicts More Similar Incidents

Gate News message, April 22 — Sam Altman, CEO of OpenAI, has publicly responded to two attacks on his residence for the first time during a Core Memory podcast appearance. Altman stated that similar incidents are likely to occur in the future, though he did not elaborate on the details of the attack

Shanghai Completes Registration of 1 Generative AI Service, Cumulative Total Reaches 158

Shanghai reports one new generative AI service registered by April 21, 2026, bringing Shanghai's total to 158 under interim measures requiring regulatory registration. Abstract: This brief notes that Shanghai's cyberspace administration announced that as of April 21, 2026, one new generative AI service completed registration, bringing the total to 158. The move follows the Generative Artificial Intelligence Service Management Interim Measures, which require providers to register with regulatory authorities.

Hugging Face Open-Sources ml-intern, an AI Agent for Autonomous ML Research

Open-sourced ml-intern, Hugging Face's autonomous ML research agent that reads papers, curates data, trains, evaluates, and iterates across science, medicine, and math. Abstract: Hugging Face's ml-intern is an open-source autonomous ML research agent that reads papers, curates datasets, trains on local or cloud GPUs, evaluates results, and iterates improvements. Built on smolagents with CLI and web interfaces, it navigates arXiv/HF Papers, HF Hub, and HF Jobs. Demonstrations span science, medicine, and mathematics, showing end-to-end automation and performance gains.

JPMorgan Chase Raises S&P 500 Year-End Target to 7,600, Citing AI Investment Surge and Easing Geopolitical Risks

Summary: JPMorgan lifts 2026 S&P 500 to 7,600, 2027 to 385 EPS, driven by AI enthusiasm and easing Middle East tensions; forward P/E stays 22x, potential to 23x and ~8,000 if tensions fall; warns of short-term consolidation amid oil and geopolitical risks. Abstract: JPMorgan’s strategy team, led by Dubravko Lakos-Bujas, raised the year-end S&P 500 forecast to 7,600 from 7,200, citing renewed AI enthusiasm and easing Middle East tensions. 2026 EPS is boosted to $330 and 2027 to $385, with the forward multiple held at 22x; a quicker geopolitical resolution could lift the multiple to 23x and push 2026 toward 8,000. The AI theme gained momentum after Anthropic unveiled Mythos, with about two-thirds of AI-related S&P 500 stocks outperforming. Risks include higher oil prices and lingering geopolitical tensions, suggesting a potential short-term consolidation before further gains.

OpenAI Briefs U.S. Government and Five Eyes Alliance on Cybersecurity Product

Gate News message, April 22 — OpenAI has briefed the U.S. federal government and the Five Eyes alliance on a new cybersecurity product, according to Axios.

OpenAI to Invest Up to $1.5B in DeployCo Joint Venture with Major PE Firms

Gate News message, April 22 — OpenAI is forming a joint venture called DeployCo with multiple private equity firms including TPG, Bain Capital, Advent International, Brookfield, and Goanna Capital. OpenAI will initially invest $500 million in equity with majority voting rights and the option to