Subquadratic architectures, cheaper frontier models, and geopolitical AI fragmentation.

Subquadratic released SubQ 1M-Preview on May 5, backed by $29M in seed funding. The model breaks the O(n²) cost ceiling that has constrained long-context inference across the industry by replacing standard quadratic attention with a sparse, subquadratic architecture. Native 12 million token context window enables use cases that frontier models either cannot handle or require prohibitive inference costs.

Architectural shift away from transformers

Google announced Gemini 3.5 Flash at I/O 2026 on May 19, positioning it as the successor to Gemini 3.1 Pro. The model matches or exceeds its predecessor on coding and agentic reasoning benchmarks while delivering 4x faster output token generation and pricing as low as one-third the cost of OpenAI and Anthropic's flagship models. Google Cloud reported $20B in Q1 2026 revenue, up 63% year-over-year, signaling momentum in cloud AI adoption.

Performance and pricing shift

China's National Development and Reform Commission formally blocked Meta's $2B acquisition of Manus, a Chinese agent startup, on May 19. Both parties were ordered to withdraw the transaction. The decision marks the first instance of China using state authority to block a foreign acquisition of a domestic AI company, signaling a shift toward capital controls on frontier AI technology.

Precedent for acquisition blocking