SpaceX Powers Claude, GPT-5.5 Instant, SubQ 12M Tokens — Top 10 AI Stories This Week

SpaceX has allocated its entire Colossus 1 data centre to Anthropic, marking a significant shift towards orbital compute infrastructure. This partnership represents one of the largest dedicated AI compute deployments to date, as SpaceX explores the potential of space-based AI processing capabilities. OpenAI has rolled out GPT-5.5 Instant as the new default model for ChatGPT users, replacing previous iterations with improved speed and performance. Meanwhile, Subquadratic has launched SubQ, featuring an unprecedented 12-million-token context window that dramatically expands the model's ability to process and maintain coherence across extensive documents and conversations. Other notable developments include Claude templates specifically designed for Wall Street applications, Jack Clark's assessment giving 60% odds on achieving recursive self-improvement in AI systems, and xAI cutting Grok pricing by 40% with the release of Grok 4.3. The week also saw advances in real-time world models from Reactor, AI-designed antibiotics for MRSA treatment, and Unity AI entering open beta. These developments collectively demonstrate accelerating progress across AI infrastructure, model capabilities, and practical applications, with particular emphasis on scaling context lengths and reducing operational costs whilst expanding into new domains like healthcare and finance.