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BriefPulse Practical AI

What changed in AI, what it is useful for, and what you can do with it.

15 September 2026

3 published today · 8 in the edition

Lead story · Brief

GitHub Copilot auto model selection adds efficiency, balance, and intelligence tiers

GitHub Copilot auto model selection now offers three tiers: efficiency, balance, and intelligence. The tier you choose reflects how you want auto to weigh cost, quality, and response time.

Auto model selection tiers: three tiers
Original graphic: drawn from the figures in this story, not a stock image.

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Research worth watching

Open releases

Guides worth keeping

Check what a latest model alias points to before you ship

OpenRouter's catalogue lists entries that always follow the newest model in a family. This guide shows how to see what such an entry points to today, and when to call a fixed version name instead.

For Anyone whose script, app or agent calls a hosted model by name and needs to know which model actually answered.

Set a Copilot auto-model tier, then check which model answered

GitHub Copilot's automatic model selection now has three tiers. This guide covers what each tier prioritises, where the setting applies, how usage is charged, and how to see which model produced a response.

For Copilot users who let the tool choose the model and want a lever on cost, quality or speed.

Decide how much autonomy to give an AI agent

How to place a task on the autonomy spectrum, why one bad step spreads, and where to borrow a threat model instead of writing one from scratch.

For Operators and small teams about to let an agent act on real tools, records or money.

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