GPT-5.5 Arrives, Google's $40B Anthropic Bet & DeepSeek V4

On AI RADAR, we break down **OpenAI's GPT-5.5**, a new "AI coworker" with a 1-million-token context window. We also explore Google's staggering **$40 billion investment into Anthropic**, the largest single-company AI rival investment ever. Plus, **DeepSeek V4** debuts, disrupting the frontier market with a highly efficient open-weight model. Also: **Meta lays off 8,000 employees** to fund its generative AI push, and **Anthropic adds persistent memory** to Claude managed agents.Sources:• OpenAI Introducing GPT-5.5: https://openai.com/index/introducing-gpt-5-5/• Google to Invest in Anthropic: https://www.bloomberg.com/news/articles/2026-04-24/google-to-invest-up-to-40-billion-in-ai-startup-anthropic• DeepSeek-V4-Pro: https://huggingface.co/deepseek-ai/DeepSeek-V4-Pro• Meta to Cut 8000 Jobs: https://www.cbsnews.com/news/meta-to-cut-8000-jobs-as-it-charges-into-ai/• Anthropic Adds Memory: https://sdtimes.com/ai/anthropic-adds-memory-to-claude-managed-agents/