Latest · Grok 4.5 in private beta · 28 Jun 2026

Grok 4.5 is here. And you can't use it.

Elon Musk just announced Grok 4.5 — a 1.5-trillion-parameter model that may already beat Claude Opus. But it's locked in private beta at SpaceX and Tesla. You can't touch it. And that's the whole point of this guide.

A robed operator fully clothed in a long flowing chiton stands at a glowing central engine socket on a marble console; several luminous model-cores of different colours float in an arc around it and one is being slotted into the engine — any model plugs into one unchanging system
The three strongest models on earth right now · and who's actually allowed to run them
🚀 Grok 4.5 (xAI)1.5T V9 · "maybe beats Opus"
SpaceX & Tesla only
🔒 GPT-5.6 (OpenAI)gated · gov-approved
approved partners only
🚫 Fable 5 (Anthropic)pulled · trickling back
vanished overnight
✅ Your systemruns whatever you CAN get
yours · forever
The three best models in the world are all locked behind a beta, a gate, or a ban. The only thing you fully control is the system you wrap around whatever model you're allowed to use.
1.5T
parameters in the V9 model
10T
params coming in Grok 5
0
ways you can use Grok 4.5 today
Straight from xAI — read it + see it yourself ↓

"Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus."

— Elon Musk, on X, 28 Jun 2026

I · what just dropped

Everything we know about Grok 4.5.

Here's the news, plain.

Yesterday — 28 June 2026 — Elon Musk posted that xAI's newest model, Grok 4.5, has entered private beta.

It's built on xAI's brand-new V9 foundation model. That model packs 1.5 trillion parameters — roughly three times bigger than the "V8-small" brain behind the earlier Grok 4 versions, and a 50% jump from Grok 4.4, which shipped with 1 trillion parameters in late May.

The V9 model finished training on 26 May 2026. Then xAI added Cursor data in supplemental training — Cursor being the AI coding tool developers live in. Translation: this model was tuned hard for writing code.

And the headline claim — straight from Elon — is that early internal tests show Grok 4.5 performing close to, perhaps exceeding, Claude Opus. Opus is Anthropic's top model. So xAI is saying their new one is right at the frontier.

Tweet 1 · the announcement

Elon lays out the whole thing in one post

This is the entire announcement. Read it slowly — there are four claims packed in: the model (1.5T V9 + Cursor data), the access (private beta at SpaceX & Tesla — not you), the performance (close to or beating Opus), and the kicker at the end — completely new models, trained from scratch, shipping every single month for the rest of the year. That last line is the one that should change how you build.

(Live X embeds need a connection to load — offline they show as a plain link. That's normal.)

Then, a few hours later, Elon walked the hype back himself — and dropped the clearest numbers yet.

Tweet 2 · the reality check

"A solid workhorse in the same league as Opus" — not a miracle

This is Elon cooling his own announcement, which tells you a lot. He says straight out: it won't be "mind-blowingly better than anything" — it'll be a solid workhorse in the same league as Opus. He also gives the real reason it's a big jump: the old v8 model (Grok 4.3) was only 0.5 trillion params, finished training back in December, and had "many fundamental flaws." So Grok 4.5 isn't beating the field — it's xAI finally catching up to the frontier, with a much bigger fresh model. And note the line about Starlink and Starship engineers shifting onto AI — that's why the next ones come fast.

One more detail Elon added: the Cursor team isn't just handing over data — they're making major engineering contributions to V9's fine-tuning and reinforcement learning. The coding tool is helping build the coding model.

Let me put every confirmed detail in one place so you have it all:

Model
Grok 4.5xAI's newest, announced 28 Jun 2026
Foundation
V9 modelfinished training 26 May 2026
Size
1.5 trillion params~3× the V8-small behind Grok 4 · +50% on Grok 4.4's 1T
Special training
Cursor data addedsupplemental training → strong coding focus
Performance
"Close to / beating Opus"early internal evals, per Elon — not yet third-party verified
Access
Private beta onlySpaceX & Tesla internal teams — no public date
Test ground
Rockets & carstuned on real rocket-trajectory + vehicle-manufacturing work
Still improving
RL ongoing"the Grok Build harness gets better every day" — Elon
What's next
A new model monthlyfrom-scratch models shipping every month in 2026; Grok 5 targeting 10T params

The internet did what the internet does — it skipped the nuance and went straight to "Opus killer."

Tweet 3 · the hype

"Grok 4.5 is an Opus KILLER"

Here's the gap between Elon's careful "same league as Opus" and how it gets repeated. This post calls it an outright Opus killer, notes the betting market Polymarket gives it a 42% chance of a public release in July, and points out the older Grok 4.3 was genuinely weak versus rivals — so expectations are sky-high. Useful to see, because this is the energy around every launch. The takeaway isn't "believe the hype" or "dismiss it" — it's that a model you can't even run is already being crowned, and you're meant to feel behind for not having it.

One honest note: these are xAI's own early numbers, and even Elon only claims "same league as Opus." No outside lab has benchmarked Grok 4.5 yet, because no outside person can run it. Hold the "Opus killer" talk loosely until it's public — but the direction is clear: another frontier-class model just landed.

the parameter race · billions of parameters (xAI's own figures)
Grok 4.3 · v8 · trained Dec0.5T
Grok 4.4 · late May1T
Grok 4.5 · V9 · today1.5T
Grok 5 · target10T
Grok 4.5 is a real jump — but look at the bottom bar. Grok 5 is aimed at 10 trillion params, and Musk says a brand-new model ships every month. Whatever you build on today is old by next month. So don't build on the model.
II · the catch

It's the best model you can't touch.

Read the announcement again and the catch jumps out.

"Private beta at SpaceX & Tesla." That's it. Two of Elon's own companies. Their engineers get to test it on real rocket trajectories and real car-factory workflows.

You don't. There's no public release date. There's no API. There's no sign-up. The original plan had it landing in late May — it's already about a month late.

So the whole internet is now guessing when you'll finally get in.

Tweet 4 · the waiting

"For the first time in months, I'm excited — Grok 4.5 in July!"

This is the mood exactly: real excitement, pinned to a date nobody's confirmed. Jo Bhakdi speaks for a lot of builders — genuinely hyped, already pencilling in "July." The quoted Elon reply underneath even adds that the Cursor team is doing major engineering on the model, not just data. But read what's actually happening: smart people are arranging their plans around a model that has no release date, no API, and no guarantee it arrives when they hope. That's the trap — building your month around a door you don't control.

Tweet 5 · the countdown

"Release in ~2 weeks" — the narrative window opens

And the marketing machine is already running on it. This post frames a "narrative window" — Grok 4.5 maybe two weeks out — and pitches matching that hype to your brand. Whether it's two weeks, July, or later, notice the shape: an entire wave of attention, content and waiting, all aimed at a model you still can't touch. You can spend that two weeks refreshing for access — or building the system that runs whatever you already have.

A guess is not access. Late May came and went. July might too. Even the betting markets only give it about a 42% shot at going public next month.

So right now, Grok 4.5 is a headline you can read and a model you can't run. Exciting news, zero access.

And here's the thing most people miss in the hype: this is not unusual anymore. It's the pattern.

III · the pattern nobody's naming

Three best models. All locked away.

Step back from Grok for a second and look at the last three weeks.

The three most powerful models on the planet right now? You can't freely use a single one of them.

Three glowing crystalline model-cores of different colours sealed behind three tall ornate locked gates in a dark marble hall, a robed figure fully clothed in a long flowing robe standing before them looking up at powerful things locked just out of reach

Grok 4.5 — beta-locked. Announced this week. SpaceX and Tesla only. No public access.

GPT-5.6 — gated. OpenAI's newest shipped to a tiny group of enterprise partners, with the government approving access customer by customer over security concerns (reported by Axios and SiliconANGLE, 25 June). "Here, but not for everyone."

Fable 5 — pulled. Anthropic launched Fable 5 on 9 June. It was state-of-the-art on nearly every benchmark. Then it vanished overnight — disabled globally to comply with a US export-control directive tied to national security. It's only now trickling back, still gated.

See it? Launch, then lock. Beta, gate, ban. The better the model, the faster it gets walled off — behind a government, a security review, or a pair of Elon's companies.

If your plan is "wait for the best model, then use it," you are permanently waiting at a door that keeps getting locked.

Thinking it? "Maybe Grok 4.5 goes public soon and this is moot."

Maybe. But you can't run your business on "maybe." Fable 5 was public for a day, then gone. GPT-5.6 is approved one customer at a time. Even if Grok 4.5 opens up next month, Grok 5 — and a new from-scratch model after it — is right behind it, and the cycle resets. The fix isn't predicting which door unlocks. It's building so it doesn't matter which one does.

Fable 59 Jun · launched→ pulled overnight GPT-5.625 Jun · gatedgov-approved only Grok 4.528 Jun · private betaSpaceX & Tesla only Your systemalways open · always yours every top model gets locked away within days — the system you own never does
Three weeks, three frontier models, three locks: pulled, gated, beta. The only node on this timeline that stays open is the one you build.
my story · why this matters

I used to chase every model. Now I don't care which one wins.

Before

Every launch, I'd scramble. New model drops — rip out the old one, rewire everything, re-learn the quirks.

Then it'd get gated, or rate-limited, or pulled, and I'd be stuck mid-project.

I paid the premium to be first, watched the lead evaporate in weeks, and started over chasing the next one.

My business depended on a model I didn't control — and kept losing access to.

Then I stopped building on the model and built the system instead.

After

Now a model like Grok 4.5 drops and I feel nothing but curiosity.

My agents, my memory, my workflows don't change. When I get access to a new model, I point my system at it — one line.

The everyday work runs on a free local model that nobody can gate. Nothing ever stops.

I run a seven-figure business on this, with AI handling about 80% of the work — on whatever model I'm allowed to use that week.

You can have this too. Same system. Same path.

3,600+founders inside AIPB
400kYouTube subscribers
38countries · live members
163kX / Twitter followers
Real people · real wins

I'm not going to paste invented quotes here. The wins are real and written by the members themselves — agency owners, ecom founders, course creators, solo operators across 38 countries. Read them in their own words.

Read the 158-page wins doc →
before you scroll on —

Commit to transitioning today. Not tomorrow.

You've seen the pattern. The best models keep getting locked away, and they're not slowing down — a new one every month.

So here's the deal. Promise yourself one thing right now: before you sleep tonight, you'll wire one model-agnostic piece into how you work. Just one.

Because the moment you stop betting your business on a single model, every launch stops being a scramble and starts being a free upgrade.

The people still chasing access are going to keep getting locked out. The people building the system today are the ones who look back in six months and say "that was the moment."

Commit to the transition. Build the part nobody can take. Start tonight.

IV · the framework

The Model-Proof System™.

Here's the idea in one line: build so that no single model can ever make or break you.

When models get pulled, gated, or beta-locked, nothing in your business flinches — because the model is just a part you swap, not the foundation you stand on. Four layers make a system model-proof.

i.

One socket, any model

A single dashboard where every model plugs into the same slot — the gated frontier when you're allowed it, a free local model when you're not, a cheap open model in between. Swapping one in is one line, not a rebuild.

ii.

A free model that never gets locked

An offline model on your own machine, running at $0, that nobody can gate or pull. It does the everyday 90% of the work. When the frontier slams its door, your business doesn't even notice.

iii.

Memory that knows your business

Your context, clients, voice and goals live in the system — not the model. So every model you plug in instantly "knows" your business. The intelligence you've built up stays when the model leaves.

iv.

Agents and workflows that do the work

The actual jobs — research, build, review, ship — are wired as agents and workflows that own the outcome. The model is just horsepower poured into them. Change the engine; the machine keeps running.

Get those four right and Grok 4.5 being locked away stops being your problem. You'll run on what you can get today, and slot in Grok 4.5 — or whatever beats it next month — the day the door opens.

Grok 4.5 — when it opens GPT-5.6 / Fable 5 — if allowed Free local model · $0 models — gated, pulled, beta, swappable THE MODEL-PROOF SYSTEM memory · agents · workflows · the part you own whichever model you're allowed to use, it plugs in here
Models get gated, pulled, beta-locked. The system you build around them is the part nobody can take — and it runs on whichever model you're allowed to use today.
V · what this means for you

You don't need Grok 4.5. You need a system.

Here's the freeing part.

You were never getting Grok 4.5 anyway — it's locked to SpaceX and Tesla. Same with Fable 5 in its vault, and GPT-5.6 behind its government queue.

But you don't need them. The models you can run today — free local models, cheap open models, the CLI you already pay for — are already good enough to do real work for your business.

What's been missing was never a better model. It's the system that turns any model into output.

That's what the Agent OS is — the Model-Proof System, built. One dashboard that plugs in whatever model you can get and wraps it in memory, agents and workflows that know your business. While everyone else fights over who gets which model, you build the thing that uses all of them.

Thinking it? "Doesn't running Agent OS burn a fortune in tokens?"

No — that's the biggest myth about it. Agent OS runs the everyday 90% on a free local model on your own machine (nothing leaving it, $0), free APIs and cheap open models slot in for more, and for the frontier work it drives the CLIs you already pay for — your Claude subscription already includes the Claude CLI, and Agent OS plugs straight into it, so you're not paying twice. It's a layer on top of what you already own, not a new meter. And inside the AI Profit Boardroom there are full token-optimisation tutorials, so you cut usage to the bone and never think about it again.

VI · old way vs new way

Two ways to play every launch.

Chasing the model
always locked out
  • Wait for the next "best model" to drop
  • Find out it's beta / gated / pulled — not for you
  • Pay the premium for the brief window you do get
  • Rewire everything around its quirks
  • Watch it get matched or walled off in weeks, start over
Owning the system
never blocked
  • Build one system that plugs in any model
  • Run the everyday 90% on a free local model — $0, never gated
  • Slot the frontier in the day you're allowed it — one line
  • Keep your memory, agents and workflows forever
  • Every new model — Grok 4.5, Grok 5, whatever — is a free upgrade
Any modelin (whatever you can get) Memoryknows your business Agentsdo the work Outcomedone · saved
Your job flows left to right: swap any model in at the front; the memory + agents do the real work; a finished outcome comes out. Change the model, the system keeps running.
build the thing that lasts

Get the Agent OS — the system, not the model.

This whole news cycle is about who gets which model. The Agent OS is the other answer: one operating system that runs on whatever model you're allowed to use. Here's everything inside it.

Plug in any model — gated frontier, cheap open, or free local, one dashboard
The Local Hermes Engine — a free offline model that builds while you watch, $0
Agent Kanban — Planner → Builder → Reviewer, agents that do the work
The Claude Workspace — every output saved and previewed, nothing lost
Every CLI you already pay for — Claude, Codex, Gemini, Kimi, GLM, Grok in one place
Free local models for the everyday 90% — at $0, never gated
The AI Mastermind — models debate, then hand you one consensus answer
Memory + vault that knows your business cold, every session
Token-optimisation playbooks so it runs cheap, on tools you already own
3,600+ founders + me shipping daily — every new model added the week it lands

You're not buying a tool. You're getting the whole operating system I run a seven-figure business on — the one that doesn't care whether Grok 4.5 ever lets you in.

Get the Agent OS → Inside the AI Profit Boardroom · skool.com/ai-profit-lab
VII · three beliefs to drop

What's holding you back.

Wrong: "I need the newest model — Grok 4.5, GPT-5.6 — to compete. Until I get one, I'm stuck."

Right: You can't get them — they're beta-locked and gated. But the models you can run today are already good enough for real work. What you're missing isn't a model, it's the system around it.

Wrong: "I should wait for the dust to settle, then pick the winning model."

Right: The dust never settles — Musk is shipping a brand-new model every month. Build a system that swaps models in a click, and you stop caring which one wins the week.

Wrong: "Only big labs and Elon's companies get to play at this level."

Right: They control the models. You control something they can't take — the memory, agents and workflows you own. That's the durable edge, and you can build it today on the same dashboard I use.

Don't take my word for it

158 pages of members who already stopped chasing models and built the system — real businesses, real wins, across 38 countries. Read them in their own words.

Read the 158-page wins doc →
VIII · should you care?

Where this leaves you.

You can read this week as another shiny launch you've been locked out of. Fair — you have been.

Or you can read it as the clearest proof yet of the one thing that actually matters: the model is not the moat, and you were never going to win by waiting for access.

The people who build model-proof systems now — while everyone else refreshes the Grok 4.5 waitlist — are going to be miles ahead when the dust settles. Every workflow you wire, every agent you add, every bit of memory you give it. It all compounds.

The model expires. The system compounds. Build the system.

the recap

The whole thing in five lines.

i.

Grok 4.5 is real. A 1.5T V9 model, tuned on Cursor data, maybe beating Opus — announced 28 Jun.

ii.

You can't use it. Private beta at SpaceX & Tesla only. No public date, no API.

iii.

It's the pattern. Fable 5 pulled, GPT-5.6 gated, Grok 4.5 beta — every top model gets locked away.

iv.

A new one every month. Musk is shipping from-scratch models monthly; Grok 5 targets 10T params.

v.

Build the Model-Proof System. One Agent OS that plugs in any model you can get and turns it into output.

The model expires. The system compounds.

your move

Stop chasing the model. Own the system.

Grok 4.5 may beat Opus. You'll never know first-hand — not for a while. But you don't have to wait at a locked door to win.

Inside the AI Profit Boardroom you get the full Agent OS — the Model-Proof System, built. The same dashboard that plugs free local models, cheap open models, and the gated frontier into one system with shared memory, agents and workflows that know your business. You get the zip file, every prompt, the memory setup, and coaching calls where we wire it in together, step by step. 3,600+ founders across 38 countries are building inside it right now, and every new model — Grok 4.5, Grok 5, GPT-5.6, whatever ships next month — just slots in and makes the whole thing stronger. While everyone else argues about who gets which model, you'll own the system that runs them all.

Get the Agent OS → Inside the AI Profit Boardroom · skool.com/ai-profit-lab

Set up in an afternoon · used in 38 countries · new models added every week. I'll see you inside.