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Federico Donatone

Written by Federico Donatone
Founder & CEO, Growth Cab

Inside every issue

One email. Four parts.

The same shape every Wednesday, so you always know where to look and what to do. Under five minutes, start to finish. Here is a sample issue, part by part.

Federico — AI Frontier brief@news.growthcab.com

💰 Haiku 5.5 cuts token prices 90%. Put it on account research · Also: Clay launches Workflows with a Claude Code plugin, OpenAI watermarks EU text, and a free hiring signal.

AI Frontier. The signal. The play. The edge.

AI FrontierSample issue

Haiku 5.5 cuts token prices 90%. Put it on account research.

Also: Clay launches Workflows with a Claude Code plugin, OpenAI watermarks EU text, and a free hiring signal.

READ TIME: 5 MINUTES

The News

The week's AI launches that change outbound, checked on the primary source, each with what to do about it.

MODEL LAUNCH

💰 Anthropic drops Claude Haiku 5.5 with token prices 90% below Haiku 4.5

Chart: researching 1,000 accounts costs $22.50 on Claude Haiku 4.5 and $2.25 on Claude Haiku 5.5

AI Frontier: Anthropic released Claude Haiku 5.5, its cheapest and fastest model, built for high-volume work like summaries, classification and subagent tasks.

USE IT IN OUTBOUND

Put account research on a Haiku 5.5 subagent and keep Opus or Sonnet for the email itself. At list price, a 500-token brief from 20k tokens of a company's pages costs about $2.25 per 1,000 accounts.

The Signal

One buying signal you can track this week: where to find it, why it works and the first line to send.

A new sales job post

Why it works: hiring for sales means a pipeline number just went up. Data, tools and outside help get bought in that window, and the post often names who owns it.

Real run on October 9, 2026: five new sales roles found on three public job boards, each with an opening line written by Claude FIRST LINE TO SEND

Saw you opened two SDR roles this week. Who builds their account list while they ramp?

The Claude Code Play

One play we ran end to end before sending it, with the prompt to copy and a finish line you can check.

Build a nightly hiring-signal monitor

One folder, one CSV of target accounts, one prompt. Claude Code writes the script, runs it and hands you every new sales role with an opening line.

Terminal of the real run: three public boards fetched, 66 jobs from the last 7 days, 5 sales roles kept, a second run added no duplicates THE PROMPT, FIRST LINES

Build a hiring-signal monitor in this folder. Input: accounts.csv with columns company, ats, board. 1. For each row, fetch its public job board. 2. Keep jobs published in the last 7 days. 3. Keep sales roles only: SDR, BDR, account executive, RevOps. …

Done when a week of nightly runs gives you roles you would actually contact, with zero duplicates.

Your Call

A ten-second poll that teaches outbound, then quick hits and tools. Results in the next issue.

YOUR CALL

Which opening line gets the reply?

Same signal, two first lines. Tap the one you would send.

ASaw you opened two SDR roles this week. Who builds their account list while they ramp?

BCongrats on the SDR hiring push! We help teams like yours book more meetings in 30 days.

Your welcome gift

The Operator Pack.

7 AI workflows we run in production at Growth Cab, written up as a 10-page field guide. It lands in your inbox the moment you confirm.

  1. 01
    Manager AgentRun many specialist agents through one conversation.
  2. 02
    Rules FileMake corrections compound instead of repeating them.
  3. 03
    Record Once, Run ForeverTurn one real demonstration into a reusable operating skill.
  4. 04
    Campaign Refill AgentStop outbound campaigns from quietly running out of people.
  5. 05
    Trigger-Based ProspectingLet timing do part of the persuasion.
  6. 06
    Research-to-Outbound ChainGo from ICP to an evidence-backed first message in one controlled loop.
  7. 07
    Voice-to-Work RelayStart and steer computer work without being tied to the desk.

Every workflow comes with:

  • What it replaces
  • The trigger
  • The step-by-step loop
  • The human approval gate
  • A copy-ready starter brief
  • The metric that proves it works

Plus a 7-day plan to install your first workflow.

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  • The pack arrives when you confirm

Why it is different

Read it Wednesday. Run it Thursday.

Verified.

Every material claim is checked against its primary source, and every source is linked at the bottom of the issue. No rumors, no recycled press releases.

Useful.

Every issue includes one play: the steps to run it and the finish line that tells you it worked. You can run it the same week.

Short.

Under five minutes, every week. When an issue runs long, a story gets cut instead of crammed into a wall of text.

Federico Donatone, founder and CEO of Growth Cab, in New York
Federico Donatone · New York

Who writes it

Written by an operator.

Federico Donatone is the founder and CEO of Growth Cab, a GTM and sales advisory firm based in New York. Since 2022 Growth Cab has worked with 400+ B2B clients across the US and Europe. Federico builds the AI systems his team and clients run on revenue work, then writes about what survives contact with real pipelines.

400+B2B clients since 2022
$500M+pipeline generated for clients
429K+impressions on one LinkedIn post about AI
Follow on LinkedIn Follow on X Read the full bio

Questions

Good to know.

When does AI Frontier arrive?

Every Wednesday at 6am New York time, before the US workday starts and by lunch in Europe.

Who is AI Frontier for?

B2B founders, sales and marketing leaders, and RevOps teams who want to put AI to work on revenue, not just read about it.

How do I get the Operator Pack?

Enter your email, then click the button in the confirmation email we send you. The Operator Pack arrives right after you confirm.

Is AI Frontier free?

Yes. AI Frontier and the Operator Pack are both free.

How long does an issue take to read?

Under five minutes. If an issue runs long, a story gets cut.

Where do the claims come from?

Each issue starts from what Federico is testing and writing about that week. Every material claim is checked against its primary source, and the sources are linked at the bottom of the issue.

Can I unsubscribe?

Anytime, from the link at the bottom of every issue.

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Federico Donatone

Written by Federico Donatone
Founder & CEO, Growth Cab