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I automated 50+ businesses with AI Agents, here's how

David Ondrej·
5 min read

Based on David Ondrej's video on YouTube. If you like this content, support the original creators by watching, liking and subscribing to their content.

TL;DR

Vertical AI agents—agents tailored to a specific niche or job—are expected to deliver faster time-to-value in 2025.

Briefing

AI agents are poised to reshape work by taking over repeatable, multi-step tasks—especially when they’re customized to a person’s or company’s real processes and data. The biggest practical shift for 2025 is the rise of “vertical AI agents”: agents built for a specific niche or job function, where onboarding is quick and the agent can start operating in a business after only a few setup steps. That matters because generic agent concepts without product-market fit have already attracted huge funding; the advantage now goes to teams that can deliver working automation tied to measurable outcomes.

A key distinction separates agents from simpler automation and chat-style tools. Automations are hardcoded step-by-step workflows, while AI agents add autonomy: they can decide how to proceed when the full set of possible paths can’t be predicted in advance. Compared with “AI tools” that have limited autonomy, agents can handle tasks with more freedom—solving problems that weren’t explicitly enumerated by the builder—and they can keep operating as long as the system has the right context.

The conversation also frames how to build for the next wave of models. The fastest path to durable products isn’t trying to patch around model limitations; it’s building with conviction that models will improve. That approach aligns with the expectation that reasoning-focused models (used for planning and decision-making) and implementation-focused models (used for executing tasks) will both be needed. Reasoning models are likened to “CEO/manager” agents that determine what should be done, while implementation models carry out the work—meaning future agent systems may require fewer predefined SOPs because the model can propose actions after analyzing business data.

Monetization advice centers on starting small and getting real experience. The recommended first move is building an agent for a personal use case—something that tools like Make or Zapier can’t handle well—so builders learn how autonomy behaves in practice. For making money, the path depends on one’s current situation: in a 9-to-5 role, automate personal work; for full-time income, pursue clients and integrate AI into standard operating procedures. The speaker argues that every business will need AI integration soon, so demand will rise for people who can implement agents that automate internal workflows.

Crucially, coding isn’t presented as a requirement. Builders can use AI coding tools such as Cursor to create agents without deep programming knowledge, but they still need curiosity and the ability to learn through roadblocks. Prompt engineering remains a real competitive edge because small changes in instructions can materially affect agent performance; the ability to craft and iterate prompts is treated like an emerging professional skill.

On the tooling and infrastructure side, the discussion contrasts open-source and closed models through a developer-experience lens. Open-source can make sense for enterprises with strong infrastructure and privacy constraints, but for SMB-focused solutions, OpenAI’s developer experience and managed capabilities (via the Assistants API) reduce setup and scaling friction. The practical takeaway is that the best results come from combining agents with proprietary context—personal data, internal databases, and business-specific examples—since that’s where returns on investment accelerate.

Finally, the post-AGI mindset is framed as proactive idea generation rather than outsourcing thinking. As AI improves, two outcomes are expected: people who record ideas and exercise creativity will capture more opportunities, while those who outsource thinking risk becoming dependent. The recommended stance is to use AI for feedback and learning—ask it to explain and critique—without surrendering judgment or initiative.

Cornell Notes

AI agents deliver the biggest payoff when they’re customized for a specific niche and backed by real personal or business context. The key 2025 trend is “vertical AI agents,” which are tailored to a role or industry so they can be deployed quickly after onboarding steps. Agents differ from automations because they add autonomy: they can choose how to complete tasks when not every path is predictable. Monetization advice emphasizes starting with a personal agent to learn, then moving to client work by automating standard operating procedures. Coding isn’t required to begin; tools like Cursor can help, but prompt engineering and fast learning remain crucial competitive skills.

What makes an AI agent different from an automation or a basic AI tool?

Automations are hardcoded workflows where every step is predetermined. AI tools (like chat-style systems) may have limited autonomy for a narrow purpose, but they don’t reliably decide among many possible task paths. Agents add autonomy: they can determine how to proceed toward a goal when the builder can’t predict all the ways the task might be completed. That extra freedom is what enables agents to handle more complex, branching work.

Why are “vertical AI agents” expected to be the biggest 2025 trend?

Vertical AI agents are customized for a specific niche or use case. Instead of starting from scratch, users typically complete a few onboarding steps and the agent can operate immediately in the business. The advantage is speed-to-value: the agent is already shaped for that role’s workflows, data needs, and decision patterns, which reduces the time and uncertainty compared with generic agent concepts.

How should builders think about model progress when designing agent products?

The guidance is to build with conviction that models will keep improving, rather than trying to solve every limitation in advance. Trying to engineer around issues like context-window constraints or “needle-in-haystack” retrieval can become brittle when new model generations arrive. The more durable strategy is to align the product with the direction of model capability growth.

What’s the practical monetization path for someone starting with agents?

If someone is in a 9-to-5 job, the suggested first step is automating personal tasks. For full-time income, the recommended route is client work: find a business owner (often someone already known), identify standard operating procedures that can be automated, and build an agent solution that integrates into those workflows. The claim is that demand will grow because businesses will need AI integration to stay competitive.

Why does prompt engineering remain important even as models get smarter?

Prompt engineering is treated as a real job because small instruction changes can significantly affect outcomes. Agents aren’t self-improving in the near term, so the system still needs a strong starting point. The advice is to iterate prompts manually first (don’t rely on AI to generate prompts from scratch without context), then use AI to refine after testing—since word order and phrasing can change behavior.

How does the open-source vs closed-model discussion shape agent deployment choices?

Open-source is viewed as useful mainly for enterprises with privacy constraints and infrastructure that can run models continuously. For SMB-focused solutions, the argument is that OpenAI’s developer experience and managed infrastructure reduce setup time and scaling headaches. The speaker also emphasizes that using the Assistants API helps manage state and unlocks capabilities without building everything from scratch.

Review Questions

  1. What specific capability does autonomy add that makes agents more powerful than hardcoded automations?
  2. Why does the speaker believe vertical AI agents can be deployed faster than generic agent approaches?
  3. What prompt-engineering practices are recommended for beginners to avoid overreliance on AI-generated instructions?

Key Points

  1. 1

    Vertical AI agents—agents tailored to a specific niche or job—are expected to deliver faster time-to-value in 2025.

  2. 2

    Agents differ from automations because they can choose how to complete tasks rather than following a fully predetermined step sequence.

  3. 3

    Durable agent products should align with ongoing model improvements instead of trying to patch around limitations that new generations may solve.

  4. 4

    Monetization often starts with a personal agent to learn, then shifts to client work by automating standard operating procedures.

  5. 5

    Coding isn’t required to begin; tools like Cursor can help build agents, but curiosity and rapid learning are essential.

  6. 6

    Prompt engineering remains a competitive advantage because small wording changes can materially affect agent behavior.

  7. 7

    The highest returns come from combining agents with proprietary context—personal data, internal databases, and business-specific examples.

Highlights

The biggest 2025 opportunity is vertical AI agents: niche-specific agents that can be deployed after only a few onboarding steps.
Autonomy is the dividing line—agents can decide how to proceed when the full set of task paths can’t be predicted.
Prompt engineering is treated as an emerging professional skill, not a relic—wording and examples strongly shape outcomes.
Open-source can fit enterprise privacy and infrastructure needs, but SMB deployments often benefit from OpenAI’s managed developer experience via the Assistants API.
The post-AGI advantage goes to people who generate and record their own ideas rather than outsourcing thinking to AI.

Topics

Mentioned

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