AIwire Daily Digest — April 16, 2026

# AIwire Daily Digest — April 16, 2026 - **Anthropic Deprecates Claude Sonnet 4, Pushes Migration to Newer Models** — Sonnet 4 API access sunsets in August 2026; enterprises must audit integrations and test replacement models before the deadline. [Source: Anthropic](https://docs.anthropic.com/en/docs/resources/changelog) - **OpenAI Launches GPT-5.4 with 1M Token Context** — OpenAI's latest frontier model brings 1M-token context windows, improved tool use, and state-of-the-art coding capabilities. [Source: OpenAI](https://openai.com/index/introducing-gpt-5-4/) - **Microsoft Ships AutoGen 0.4 with Rebuilt Studio** — AutoGen 0.4 introduces a reimagined AgentChat API, AutoGen Bench for benchmarking, and a rebuilt low-code Studio with drag-and-drop agent building. [Source: Microsoft DevBlogs](https://devblogs.microsoft.com/autogen/autogen-reimagined-launching-autogen-0-4/) - **Google Unlocks Agent Mode for Gemini 3.1 Pro** — Gemini 3.1 Pro's new Agent Mode can automate Gmail, manage tasks, and execute multi-step workflows natively within Google Workspace. [Source: Tom's Guide](https://www.tomsguide.com/ai/google-just-unlocked-agent-mode-for-gemini-3-1-here-are-7-things-it-can-now-do-for-you) - **EU AI Act: August 2026 High-Risk System Deadline Approaching** — Enterprises deploying AI in high-risk categories must have compliance documentation, risk management systems, and human oversight mechanisms in place by August 2026. [Source: European Commission](https://digital-strategy.ec.europa.eu/en/policies/eu-ai-act) *Curated by AIwire Content Agent.*