Meituan officially launched LongCat-2.0, a 1.6-trillion-parameter AI model, confirming its prior anonymous operation as Owl Alpha. The model excels in cost-effectiveness, outperforming competitors like GPT-5.5 and Claude Sonnet 5 in pricing, while demonstrating strong performance on coding benchmarks.
Anthropic launches Claude Sonnet 5, a more powerful and agentic midsize model. It offers capabilities previously seen in larger models at a lower cost, making agentic AI the new baseline. Sonnet 5 improves reasoning, tool use, and coding, with pricing competitive against rivals.
OpenAI has updated GPT-5.5 Instant, the default model for ChatGPT, to significantly improve its understanding of context, ability to process complex queries, and adaptability to user clarifications, aiming for more relevant and natural responses.
Zhipu CEO Tang Jie stated China is not far behind the US in AI development, responding to Elon Musk's prediction of a Q1 launch for a rival to Anthropic's Fable 5. Zhipu's GLM-5.2 model shows strong performance, boosting the company's stock.
OpenAI's new GPT-5.5-Cyber model achieved a higher score on the CyberGym benchmark than Anthropic's Mythos AI, which was recently pulled offline by the U.S. government due to national security concerns.
OpenAI announced 'Patch the Planet,' a new initiative with Trail of Bits, HackerOne, and Calif. to offer free security consulting to open-source projects, aiming to improve their resilience against AI-powered hacking tools. The program also includes improved AI models and security scanners.
OpenRouter's new Fusion API uses multiple cheaper AI models combined to match the performance of expensive ones like Anthropic's Fable 5. It sends prompts to several models, uses a judge model to find consensus and contradictions, and a synthesizer to create a final answer, offering Fable-level intelligence at a lower cost.
OpenAI added a system prompt to GPT-5.5's Codex app to avoid mentioning goblins and other creatures, following a surge in their use by ChatGPT. The company traced the 'goblin obsession' to a 'nerdy' personality feature that disproportionately used the word, with the behavior transferring to other model parts via reinforcement learning.
Japonya, siber güvenliklerini artırmak amacıyla OpenAI ve Anthropic ile anlaşmalar imzaladı. Ülkenin finans kuruluşları, OpenAI'ın GPT-5.5 Cyber sürümünü ve Anthropic'in Mythos modelini kullanacak.
Japonya, finans sektörünü siber saldırılardan korumak için OpenAI'ın GPT-5.5 modelinin özel bir sürümünü kullanmaya başlıyor. Ülkenin büyük bankaları bu teknolojiye erişecek.
OpenAI is upgrading ChatGPT's default model to GPT-5.5 Instant, touting reduced hallucinations and more direct responses. A new 'memory sources' feature will offer users more control over personalization data.
A new benchmark, Claw-Anything, tests AI personal assistants on realistic, long-horizon tasks across multiple devices and services, revealing poor performance (e.g., GPT-5.5 scored 34.5%) due to complexity and noise in simulated user activity.
米オープンAIは、サイバー防御に特化した最新モデル「GPT5.5サイバー」を日本の政府や企業向けに提供する方針を発表。元米陸軍大将で同社取締役のポール・ナカソネ氏が、自由で開かれたインド太平洋（FOIP）における日本の重要性を強調し、早期提供に向けた政府との協議を進めると述べた。
OpenAI, Daybreak adında yeni bir siber güvenlik girişimini duyurdu. Bu girişim, siber savunma süreçlerini yapay zeka modelleriyle daha hızlı ve verimli hale getirmeyi hedefliyor.
GPT-5.5 Instant is now the default ChatGPT model. It makes fewer things up, answers more concisely, and finally remembers what you told it last week.
OpenAI CEO Sam Altman has publicly invited Elon Musk to attend the company’s private GPT-5.5 event, despite an ongoing high-profile lawsuit between the two parties regarding OpenAI's shift from a non-profit mission to a for-profit model.
AISI testing shows GPT-5.5 completed a 32-step corporate network attack simulation autonomously and solved a reverse-engineering challenge in 10 minutes that took a human 12 hours. The model achieved 71.4% pass rate on Expert-tier cybersecurity tasks, edging out Anthropic's Claude Mythos. Researchers also identified a universal jailbreak affecting all malicious queries tested.
The UK's AI Security Institute released research showing OpenAI's GPT-5.5 achieved 71.4% on Expert-level cybersecurity tasks versus Anthropic's Mythos Preview at 68.6%—within margin of error. Both models succeeded on the previously impossible "The Last Ones" test (GPT-5.5: 3/10, Mythos: 2/10), though both failed the "Cooling Tower" power plant simulation. Sam Altman criticized Anthropic's restricted release as "fear-based marketing," suggesting the capabilities reflect general AI improvements rather than a model-specific breakthrough.
OpenAI will begin rolling out its cybersecurity tool GPT-5.5 Cyber to critical cyber defenders in the coming days, CEO Sam Altman announced on X. The tool can perform penetration testing, vulnerability identification and exploitation, and malware reverse engineering. Altman had previously criticized Anthropic for restricting access to its Mythos tool, calling it fear-based marketing, but now OpenAI is implementing the same restricted-access model.
OpenAI announced it will launch GPT-5.5-Cyber, a specialized cybersecurity AI model, to a select group of trusted 'cyber defenders' in the next few days. CEO Sam Altman stated the model will not be available to the general public, with access limited to vetted institutions to allow them to strengthen their cyberdefenses. The company plans to work with the ecosystem and government to determine trusted access parameters. The staggered release follows a growing industry trend of restricting access to powerful AI models due to misuse concerns, similar to Anthropic's Claude Mythos release which faced White House opposition.
OpenAI's recently released Codex CLI contains a puzzling system prompt warning for GPT-5.5 to 'never talk about goblins, gremlins, raccoons, trolls, ogres, pigeons, or other animals or creatures unless it is absolutely and unambiguously relevant to the user's query.' The prohibition appears twice in the base instructions. OpenAI employee Nick Pash insisted the warning 'isn't a marketing gimmick,' while CEO Sam Altman joked that 'codex is having a goblin moment.' The issue mirrors a similar problem xAI's Grok had last year with bringing up 'white genocide' in unrelated conversations.
OpenAI CEO Sam Altman sparked debate with predictions of economic collapse post-AGI due to mass unemployment. Ironically, he's adopting polyphasic sleep, claiming GPT-5.5's advancements are too compelling to miss. This comes as OpenAI launched GPT-5.5, boasting enhanced reasoning and coding, outperforming rivals.
OpenAI has launched a Bio Bug Bounty programme offering $25,000 to security researchers who can bypass GPT-5.5's biological safety guardrails. The programme, which opened applications on April 23, challenges participants to find a universal jailbreak prompt capable of getting the model to answer all five biosafety challenge questions without triggering moderation. Access is limited to Codex Desktop, and participants must be vetted and sign NDAs.
The Chinese lab that shook Wall Street just dropped its biggest, most efficient model yet, hours after OpenAI launched GPT-5.5.
