As we think about what's happening with Agents, Agent frameworks like Claude Code, voice interfaces, etc, I invite you to ask a simple question:
Where is this all going?
My overall approach to answering these is to imagine the ideal capabilities of an AI companion system—through the lens of what humans eternally strive for—and work backwards.
So that's what this maturity model does, in 9 ascending levels.
The idea is to have handles for talking about—and working on—progression towards the destination.
So here are the tiers: from past, through current, to future states.
The first interface to modern AI. You ask a question and you get back an extraordinarily useful answer. And you take it from there.

This was ChatGPT when it first came out. Brilliant. Limited.

The beginning of some tools and some rudimentary memory features.

Chatbots' final form before moving into Agents.
Another way to break down the transitions is as a set of spectrums across 6 dimensions.
Instead of us asking questions and getting answers from Chatbots, we assign work to Agents that can autonomously do work on our behalf.

The initial transition from Chatbots to Agents as the main way of thinking about and using AI.

Agents start to become the main mental model for AI work.

Predictions are hard, especially about the future.Niels Bohr
The final form of Agents vs. Assistants, with the main distinction being personality and trust.
Instead of random Agents performing work, we have a named, trusted Assistant that works with us to further our goals.

The transition begins from focus on Agents to the concept of an Assistant that uses Agents in the background to proactively pursue your goals.

Assistant personalities start to crystallize and they begin performing as Proactive Advocates of us and our goals, vs. reactive helpers.
The introduction of your Assistant understanding what you're trying to do in life, your goals, the metrics that matter to you, etc., which will allow him/her/it to start thinking proactively on how to help you accomplish them
We start to see the concept of Managing State, i.e., your Assistant takes periodic inventory of all inputs and assesses Current State relative to Desired State, in order to plan actions to move towards Desired State
Nearly full usage of any of your computing environments / interfaces

AS3 is the final level of this maturity model. This is the Digital Assistant I described in 2016, and that has been partially depicted in various ways in sci-fi books and films for decades.
There are many more features that can be added as you go further in time and tech, but I'm thinking really only up to 5-10 years from now. Even beyond 5 years is nutty given how fast things are changing.
Here are the main characteristics of AS3.
Trusted Companion—AS3-level Assistants feel more like trusted companions, partners, protectors, friends, and confidants than technology, managing both life and work while becoming (for both better and worse) many people's closest relationships
Loved Ones Monitoring—Continuous monitoring of everyone you care about who can't monitor themselves (children, elderly parents, those with special needs), watching all cameras, security systems, and logs 24/7 for signs of danger or distress
Continuous Advocate—Works continuously, without rest, as an Advocate. Constantly scanning the world for opportunities, threats, better deals, useful information, and ways to optimize your life according to your goals
Building Partner—When you sit down at a computer, your Assistant has full access to everything the computer can do, can see all your screens, can hear everything. You can speak, type, and gesture, and have your DA do most of the work using all the power of the connected systems
Environmental Customization—Automatically adjusts environments you enter into such as lighting, temperature, music, displays, and ambient settings in any space you enter based on preferences, current mood, time of day, and what you're trying to accomplish
Enhanced Perception—Will grant superhuman-like senses through available feeds: seeing through walls via building cameras, hearing specific conversations across rooms by filtering audio, accessing available mics, zooming into distant objects, accessing thermal vision and other sensory augmentation
Active Protection—Rewrites abusive messages before you see them, summarizes manipulative communications to extract what's really being asked, removes extremist propaganda from feeds, fact-checks claims in real-time during conversations, performs live character analysis on people you're interacting with
Universal Authentication—Handles all authentication continuously through multi-factor streams (voice, gait, location, behavior patterns), automatically enrolling new devices into your ecosystem with proper security settings and managing permissions across all connected systems
Deep Understanding—Deep understanding of your full context and history as a person: your upbringing, your relationship with your parents and family, your education, your traumas (optional, of course), your journal, your goals, your aspirations, etc. All in service of better helping you become who you are trying to become
Sometimes the best way to tell is to show, so here are some examples of what it'll be like to use an AS3 level Assistant.
Your mom hasn't moved from her bedroom in three hours past wake time—Your DA calls her, alerts the neighbor and emergency services with her location and medical history
Walking at night, your DA monitors 47 nearby cameras and notices concerning behavior ahead—"Take the next right, safer route, you'll still make it on time"
You're heads-down on a project that isn't connected to your promotion goals—Your DA: "Hey, you've spent 23 hours this week on the legacy migration, but it's not on your promo doc and your manager doesn't know about it. Meanwhile, the API redesign—your Q1 key result—hasn't moved in two weeks. Want me to draft a quick status update for Sarah showing the migration work, or should we carve out time tomorrow for the API project?"
Quarterly business review coming up—Your DA has been monitoring company OKRs, your team's goals, and your personal deliverables. "Your presentation is 80% done, but I noticed you're missing the cost-savings analysis leadership cares about. I pulled the numbers from last quarter and drafted a slide. Also, the CEO mentioned supply chain resilience three times in last week's all-hands—I added a section connecting your project to that theme. Review when you're ready."
You manage a team of eight and need to stay on top of everything—Your DA monitors each team member's projects, blockers, and career goals. "Quick heads up: Marcus has been blocked on the vendor API for four days and hasn't escalated. Jenny's utilization is at 120% while Tom's at 60%—might want to rebalance. Also, your 1:1 with Priya is in an hour and she's been researching internal transfer policies. Might be worth asking how she's feeling about growth opportunities."
Budget planning season—Your DA: "I've mapped all current projects against your Q2 budget allocation. You're 15% over on contractor spend but 20% under on tooling. Three projects have no clear tie to the department's OKRs—want me to flag those for the prioritization meeting? Also, here's a one-pager showing how your team's work ladders up to the VP's top three priorities. Useful ammunition."
You're a VP responsible for a business unit—Your DA maintains continuous awareness of company goals, team performance, project status, budget utilization, and competitive threats. "Board meeting prep: Revenue is tracking 8% ahead, but two key hires fell through and the roadmap is slipping. Your biggest risk right now is the enterprise deal with Acme—their CISO raised concerns about our SOC 2 timeline. I've drafted talking points and a mitigation plan. Also, competitor X just announced a feature that undercuts our Q3 launch. Want the analysis now or after your 10am?"
Strategic planning and threat modeling—Your DA: "Based on current spend patterns, market signals, and the threat model we built last quarter, here's what I'm seeing: 60% of security budget is on perimeter defense but our actual incidents are coming from supply chain and insider threats. I've drafted a reallocation proposal. Also, three of your five strategic initiatives are competing for the same engineering resources—someone's going to lose. Want me to model the trade-offs before Thursday's leadership sync?"
The power of AS3-level Assistants comes from their combination of continuous awareness, proactive action, and deep understanding of your goals and context.
This shifts the relationship from tool to partner—one that actively works to make you safer, healthier, more focused on what matters, and more effective at becoming who you want to be.
I hope it's useful to you.