# News: March 18, 2026

> 9 curated links on AI agents, Python, security, Google Cloud, and engineering, selected by Médéric Hurier.

- Author: [Médéric Hurier (Fmind)](https://www.fmind.dev/)
- Published: 2026-03-18
- URL: https://www.fmind.dev/news/2026-03-18/

- [Introducing GPT-5.4 mini and nano](<https://openai.com/index/introducing-gpt-5-4-mini-and-nano/>): OpenAI releases GPT-5.4 mini and nano, small models optimized for coding, subagents, and low-latency workloads with significantly improved performance and 400k context window.
- [Announcing the Colab MCP Server](<https://developers.googleblog.com/announcing-the-colab-mcp-server-connect-any-ai-agent-to-google-colab/>): Google releases an open-source Model Context Protocol (MCP) server that allows any AI agent to natively control and execute code within Google Colab notebooks.
- [Leanstral: Open-Source foundation for trustworthy vibe-coding](<https://mistral.ai/news/leanstral>): Mistral AI introduces Leanstral, an open-source code agent for the Lean 4 proof assistant designed to formally prove implementations against strict specifications.
- [Introducing multi-cluster GKE Inference Gateway](<https://cloud.google.com/blog/products/containers-kubernetes/multi-cluster-gke-inference-gateway-helps-scale-ai-workloads/>): Google Cloud previews multi-cluster GKE Inference Gateway for model-aware load balancing and global scaling of AI/ML inference workloads across different regions.
- [Measuring progress toward AGI: A cognitive framework](<https://blog.google/innovation-and-ai/models-and-research/google-deepmind/measuring-agi-cognitive-framework/>): Google DeepMind proposes a new cognitive taxonomy and evaluation protocol to track progress toward AGI, accompanied by a $200,000 Kaggle hackathon.
- [AI-powered open source security](<https://blog.google/innovation-and-ai/technology/safety-security/ai-powered-open-source-security/>): Google pledges $12.5 million to open source security and shares AI tools like Big Sleep and CodeMender to help maintainers find and fix vulnerabilities.
- [3 Advanced AI agent design patterns](<https://www.youtube.com/watch?v=89KKm_a4M7A>): This Google Cloud Tech video explores three advanced design patterns for building effective AI agents.
- [Personal Intelligence expansion](<https://blog.google/products-and-platforms/products/search/personal-intelligence-expansion/>): Google expands Personal Intelligence features across Search, Gemini, and Chrome to provide more tailored and relevant responses based on personal context.
- [Fitbit personal health coach updates 2026](<https://blog.google/products-and-platforms/devices/fitbit/fitbit-personal-health-coach-updates-2026/>): Fitbit integrates medical records and advanced sleep/metabolic research into its AI-powered personal health coach for deeper clinical context.