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AI Brief: October 2026

The month agents stopped waiting to be asked

By Silviu Daniel Eftimie (opens in a new tab)Co-founder · CEO

Intro

#All through 2026 I have written a monthly AI brief for companies, applied to marketing and shared it privately. From now on, it will be public. You won’t find the extra commentary that comes up in client meetings or the less obvious insights that stay there.

#What you will find are seven sections, in the index on the right, each one built to be skimmed:

#Every item is a headline, a line on why it matters and a link. Skim, click and go where it interests you.

The proactive agent shift

#Between 11 August and 21 October, five companies launched personal agents that act instead of answering: xAI’s Grok Bot (opens in a new tab), Instinct (opens in a new tab), Meta’s Muse (opens in a new tab), OpenAI’s dots (opens in a new tab) and Anthropic’s Claude Duet (opens in a new tab). Different products, same direction: “an assistant with its own browser, working for you in the background”, as Alejandro Navarro (opens in a new tab) put it.

What the five have in common

  • A computer of their own Cloud machine, laptop closed: Grok Bot, Muse, dots and Duet.
  • Where you already talk WhatsApp (Muse), texts and calls (Instinct), Slack and Teams (dots), text or voice (Duet).
  • Proactive, in different doses
    • Duet: morning brief
    • dots: read-only research
    • Muse: goal alerts
    • Grok Bot: starts work before you ask
  • Approval is the default Muse, dots, Duet and Grok Bot ask before they send, pay or sign.
  • Four of the five can pay Muse, Grok Bot, Instinct and Duet. dots has no wallet.

The five side by side

AgentLaunchedLives inHow it is proactiveAccess
Grok Bot (xAI)11 AugMac and iOS appWorks 24/7 and comes back for approvalPremium from $30/month, Teams and Enterprise
Instinct (startup)AugTexts, WhatsApp, callsNot statedInvite-only beta
Muse (Meta)8 SepiOS, Android, WhatsApp, MacPlans around your goals, watches and alertsFree tier, $20 or $100/month; US, 18+
dots (OpenAI)29 SepChatGPT, Slack, Teams, voiceRead-only research while idlePro (not in the EEA, UK or Switzerland), Business Premium; Enterprise in beta
Claude Duet (Anthropic)21 OctiOS, Android, claude.aiMorning brief, checks every few hoursWaitlist for Pro and Max; US only

#From Spain, most of this isn’t open to consumers yet: Muse and Duet are US-only and dots on the Pro plan excludes the EEA. For a company, the way in today is dots on Business Premium or Enterprise.

Google

Google: results and ads

Alphabet Q3 2026 highlights: revenue up 25% to about $128 billion, Search up 12%, Google Cloud up 103%, more than a billion monthly users of the Gemini app, about 32 billion tokens a minute and 150 million YouTube subscribers.

Google: models

Google Cloud and agents

  • Agent Studio Design, test and run agents by drag and drop and compare models side by side, Claude and Grok included.
Advent of Agents, season 3: 31 days of tutorials in October 2026 on building agents with Gemini, ADK and Google Cloud, starting with agent governance and security.

Google for small business

  • The Gemini app gets a home for businesses (opens in a new tab) One place inside Gemini to build your brand, analyse your finances and understand your customers. Three features: brand visuals, images and full marketing campaigns that remember your brand kit, colours and style; finances in seconds, with photos of receipts, invoices or spreadsheets turned into financial models and interactive dashboards; and your daily apps, connected straight to Google Business Profile, Ads and Workspace and to Canva, Shopify, Adobe, Wix and Dropbox (Lino Cattaruzzi, in Spanish (opens in a new tab)).
  • Google Business Home (opens in a new tab) A separate product, in invite-only beta in the US and UK: one dashboard for Business Profile, YouTube, Ads and Merchant Center. Not in Spain yet.

Anthropic

Claude for video

#Editable video, made as code: the result is a project you can change, not a flat file. The film above is the example: Mo Bitar’s reaction to “Western civilization”, a viral piece he says is “all code”.

Claude’s new small model

  • Claude Haiku 5.5 (opens in a new tab) $0.10 per million input tokens and $0.50 output, about 75% cheaper than Haiku 4.5 and on computer use it jumps from 15.7% to 72.4%: cheap enough for tagging, lead scoring and live support at volume.

Claude agents

OpenAI

GPT-6.1 Terra: the Earth lit by a warm glow against a black background, with the words GPT-6.1 on the left and Terra on the right.

ChatGPT and models

OpenAI Decisions API

  • Decisions API (opens in a new tab) Generally available: yes or no, which option, what score, from text, images or JSON, at $0.10 per million input tokens with output free.
  • Jev gets eyes: about 60% cheaper than the Decisions API (opens in a new tab)
    • Cost: 0.8 seconds and $0.00024 per static ad, about 2 cents per 100 (Filip Knyszewski’s own test; video is next).
    • Creative leaderboard: score ads from 0 to 1 on creative patterns and rank them per objective.
    • Confidence per tag: ad format came back at 0.97, funnel stage at 0.21, so you drop the weak ones.
    • Element map: coordinates for the CTA, logo, price or face: “the CTA sits in the lower third”.

ChatGPT ads

  • New formats and measurement (opens in a new tab)
    • Format: a visual ad with product images, shown during image generation to Free and Go users; US tests start this month.
    • Conversions: send them from your own systems with Hightouch, Tealium or LiveRamp.
    • Attribution: Conversions API with AppsFlyer, Adjust, Northbeam, Triple Whale, DV Rockerbox and others.
    • Incrementality: early geo tests with Haus, Measured and WorkMagic.
    • Brand safety: Negative Phrases and pilots with DoubleVerify and IAS.
    • Early result: WeightWatchers’ cost per acquisition 15.3% below its paid search (DV Rockerbox).
  • How the ChatGPT ad stack works (opens in a new tab)
    • Standard ad tech at the core: ANN retrieval, eligibility filtering and a quality-adjusted auction.
    • An LLM decides what enters the auction: it reads the intent behind the conversation, how many queries to run and which candidates compete. It does not set prices or pick the winner; the deterministic auction does.
    • Context apart from the creative: each ad carries a note on why it fits that conversation.
    • Ads never delay an answer: “Returning no ad is an ordinary, successful outcome.”
    • Risks, per Yuriy Igumnov (opens in a new tab): an opaque LLM complicates audits and compliance and prompt injection can come through conversations and advertiser creatives.
    • Still missing: latency, cost per opportunity, fill rate, eCPM, CTR, auction type and billing events.

TheOven: Loop

#Loop is leaving beta. It is TheOven’s own product: an intelligent system in three layers that tells the people who run a client’s Google Ads what to change each week and why. We have been testing it with two clients, a third is about to join and their feedback is shaping every iteration.

#It connects mainly to Google Ads through BigQuery Data Transfer and also integrates with Search Ads 360 and other sources. The design borrows heavily from Andrej Karpathy’s autoresearch (opens in a new tab), where AI agents run research on their own: propose, test, keep what works.

The three layers

  • Layer 1, data BigQuery Data Transfer and Search Ads 360 bring spend, search terms and conversions into one place.
  • Layer 2, client context An onboarding of 10 to 15 questions captures the client’s business, priorities and account structure.
  • Layer 3, the loop Every week, 10 to 15 steps produce a report of recommendations for the person who runs the account: which search terms to turn into keywords and which to block, ranked by the money at stake.
Loop’s weekly review, with sample data: a proposed negative keyword, what happens today, what the system proposes and what happens if you approve, with Approve, Reject and Postpone buttons.

The operator stays in charge

#For each recommendation, the operator applies it or rejects it and a rejection has to say why. That reason goes into the context and the next recommendation weighs it against the data: the last 90 days of spend, what converted and what didn’t. The operator’s intuition becomes a hypothesis and the hypothesis gets tested.

#The system is generic and adapts to any number of companies. The difference is the judgement of whoever runs it: someone who truly knows how Google Ads works and what the client cares about. Those people are unicorns.

#iRead

When the buyer is an agent

Agentic advertising

  • Amazon Ads Agent (opens in a new tab) Amazon’s DSP and console become one agentic platform with a chat for planning and an MCP server for your own agents; Spain is in the closed beta (Israel Ruesga (opens in a new tab)).
  • Jev is the biggest phase shift in advertising technology (opens in a new tab) Joseph Hirsch, 28 September
    • It decides, it doesn’t write: you give it a situation and it returns a structured answer with a confidence score, in milliseconds, for a fraction of a cent.
    • Sell side: a seller agent prices every impression on its own merits (audience, context, content, time and demand) and sets a fixed price. No floor-price guessing, no rules written six months ago.
    • Buy side: in a DSP or as a buyer agent, every opportunity is judged against what the campaign needs: worth it, at this price, for this goal? Yes or no, with a confidence score.
    • Both at once is a market: a seller that knows what its inventory is worth, talking to a buyer that knows what it’s worth to them.
    • Why LLMs weren’t enough: too slow and expensive for ten thousand pricing decisions a second, so agents ended up doing the paperwork around the transaction.
    • The shift: the LLM keeps the conversation, planning and negotiation and the actual call moves to a fast, cheap, auditable layer. AI becomes the decisioning layer inside the ad stack.

Where the moat went

  • The SaaS model is being structurally replaced (opens in a new tab) Guillermo Flor, 15 October, on Satya Nadella’s argument
    • Today: you buy software for its features.
    • Agentic model: the business logic leaves the application and lives inside the agent.
    • Why it matters: CRM, ticketing and project management were built by encoding business logic into UI and workflows. The software was the logic.
    • What changes: foundation models and agent layers re-encode that logic directly and the application becomes a thin shell.
  • Did software IP just become worthless? (opens in a new tab) My post from 13 October on ArtCraft, open-source clones of Adobe and Office apps written with Opus 5.5: value moves to data, distribution and trust.

To learn

To think

On the radar

Events

5 November, Mutilva (Navarra) and online

#Del humano en el bucle al desarrollo desatendido (opens in a new tab), by 540, free and in Spanish. Mikel Ros on how much autonomy to give coding agents; one of their repositories went from 87 merged pull requests in August 2025 to 502 this year.

7 November, Madrid

#Claude Code Hackathon: Close the Books (opens in a new tab), a Claude Community event with a challenge by Talky. Free with approval. Build an AI finance team that closes the books of a synthetic company, scored on accuracy, fraud detection, safe autonomy and auditability.

12 November, Madrid

#Programmatic Breakfast: Agentic AI (opens in a new tab), by Programmatic Spain, in Spanish, with tickets from €75 (programme (opens in a new tab)). Samsung, Seedtag, Prisa Media, Taptap and others on “De campañas a sistemas: diseñar reglas es el nuevo media planning”. The one for media teams.

19 November, Mutilva (Navarra)

#IA + Software: pongámoslo a prueba (opens in a new tab), by 540, free and in Spanish. A hands-on workshop that continues the 5 November talk; bring a laptop.

Outro

#That was October. The next AI Brief arrives at the end of November, with the same format: what launched, why it matters for marketing and where to read more. See you then.

Sources