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October 21, 2026

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

  1. Claude Opus 5.5 and Claude Sonnet 5.5 available in Antigravity

    cloud.google.com

    Google Cloud brings Claude Opus 5.5 and Claude Sonnet 5.5 to Google Antigravity across its CLI, IDE extensions, and Antigravity 2.0 runtime for enterprise agentic workflows.

  2. Voxtral 3

    mistral.ai

    Mistral AI releases Voxtral 3, featuring advanced speech-to-text and text-to-speech models alongside a real-time Voice Agent SDK supporting live tool calling and low-latency audio pipelines across 50+ languages.

  3. Harness²

    github.com

    Google Research open-sources Harness², a plug-and-play framework for recursive agent harnessing that dynamically refines prompts, tools, memory, and orchestration while keeping model weights fixed.

  4. Bringing uv and ty together

    astral.sh

    Astral introduces experimental integration between uv and ty, enabling first-class support for Python scripts on the CLI and in editors alongside a unified uv check command.

  5. Introducing Agent Memory on Databricks

    databricks.com

    Databricks introduces Agent Memory to enhance AI agent accuracy while decreasing latency and costs by persisting critical facts, preferences, and multi-step workflows.

  6. Devs guide to MCP Apps in Gemini

    cloud.google.com

    Google Cloud publishes an implementation guide detailing how developers can build and integrate Model Context Protocol (MCP) applications into Gemini to support visual and interactive multi-step workflows.

  7. Build a voice agent that never goes silent using ADK

    developers.googleblog.com

    Google publishes a step-by-step tutorial on building responsive voice agents that never go silent using open-source ADK, streaming tools, and Gemini 3.8 Live with response scheduling.

  8. NVIDIA GB300 FP4 vs TPUv7 FP8 performance per dollar

    x.com

    SemiAnalysis reports that NVIDIA's first GB300 FP4 submission remains 1.64x worse in performance per dollar compared to Google's TPUv7 FP8 submission.

  9. Google named a Leader in 2026 IDC MarketScape for Agentic AI Platforms

    cloud.google.com

    Google Cloud is recognized as a Leader in the inaugural IDC MarketScape: Worldwide Agentic AI Platforms 2026 Vendor Assessment for its connected Gemini foundation across developer and enterprise surfaces.

  10. Key Takeaways from Gemini at Work 2026

    youtube.com

    Google Cloud summarizes enterprise highlights from Gemini at Work 2026, focusing on portfolio brand unification under Gemini, cross-stack enterprise agent rollouts, and predictable compute strategies.

  11. Use Sheets canvas to plot raw feature requests onto an interactive 2x2 effort vs. impact matrix

    youtube.com

    Google Workspace demonstrates how teams can use Sheets canvas to plot raw feature requests directly onto an interactive 2x2 effort-versus-impact prioritization matrix.