From the Zalos team

Engineering notes on building agents that work with the tools you already use.

• Engineering3 November 2026

  How Zalos catches 96.5% of harmful finance prompts

  A general-purpose moderation filter catches 56.9% of the same prompts.

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• Engineering27 October 2026

  A better browser agent, without a new browser

  How we built Zalos’s harness and reached 94/100 on BU-Bench-V1 using GPT-5.5 with Chrome.

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