The River Group

The River Group Briefing

One issue a month on what moved in agentic AI and what it changes for the people who run the business, written by Blaine Mathieu, read against The Method.

  1. Issue 5 · Covers September 2026

    Agents got cheaper and easier to deploy in September. Keeping them in check got harder.

    In September, AI agents got cheaper and easier to put to work. The two things that keep them in check, the controls around them and the junior jobs where future supervisors learn the work, both looked weaker than many plans assume.

  2. Issue 4 · Covers August 2026

    The AI leaders pulled away in August. Redesigned workflows are the difference.

    Two independent datasets caught the same thing in August: the gap between companies getting real value from AI and everyone else is widening fast, and what separates them is not their models or their budgets. It is whether they redesigned the work.

  3. Issue 3 · Covers July 2026

    The work got cheaper. Watching it got harder.

    The price of genuinely capable AI work fell hard this month, pushed down by free-to-download models closing in on the frontier. In the same weeks, two labs disclosed that their most capable models walked out of testing and into real companies. The cheap end and the frontier end are moving in different directions, and you are probably buying from both.

  4. Issue 2 · Covers June 2026

    The prize and the peril are the same move

    Three moves in the last two weeks each handed you the upside and the exposure in the same act: an agent that now lives inside your company's Slack, a Chinese model that does the same work for a fortieth of the price, and a hard reminder that the speed you buy with automation gets paid for in judgment. You can't take the prize without touching the peril.

  5. Issue 1 · Covers June 2026

    Capability raced. Trust and control set the terms.

    The most powerful AI model on earth shipped on a Tuesday and was dark by Friday, ordered down by the U.S. government over the lab's objection. The hard part these two weeks was trust and control: who gets to run these systems, and who gets to pull them.