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Decision BriefSimon Willisontoolmodelproduct2026-11-11

Gemini Decisions API

Decision Summary

Decision Summary: “Gemini Decisions API” is a public AI signal for Builder and Operator. The practical question is whether it is safe to test with non-sensitive data this week, not whether the headline is loud.

What Changed

Gemini Decisions API Google join Jev and OpenAI in the decision model category with "Gemini Decision 1". This new model API is almost identical to Jev: it supports the same three types of questions (yes/no, choice, and rubric-scoring) and even reuses Jev's term "Noul" for a yes/no question. It's pri

Why It Matters

If this touches a tool you already use, check whether it saves work now or just adds another tab to your stack.

Who Should Care

Builder
Operator
AI engineer
Product & automation
  • Builder: You ship products, tools, or workflows — scan for anything that changes the next build decision.
  • Operator: You run teams, processes, or infrastructure — check for cost, reliability, or vendor implications.
  • AI engineer: You work on model choice, agents, or inference — look for concrete technical constraints.
  • Product & automation: You embed AI into products or workflows — watch for integration or automation changes.

What To Do Next

Try today
Watch this week
Compare with stack
Save for later
Skip for now

Try today: Run a small test with non-sensitive data before you trust it.

Curious whether tool signals are gaining steam? Check this week's trending signals for source mix and velocity.

Source Confidence

MediumSimon Willison

This links to reputable reporting or first-hand analysis — generally useful, but not an official source.

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