The Most Popular Tesla and Rivian App in the world. tezlab.app | batteryhealth.app
Brooklyn, NY
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- Followers 7,821
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You can now easily (1 minute) add Grok in car support to all your TezLab data. You can get all your cars data, ask it to honk your horn and anything else you can think of. This is pretty incredible. Shoutout to all those who have helped improve our MCP server.
tezlabapp.com/mcp
@niccruzpatane @DirtyTesLa @Tesla_AI @TesLatino @teslaownersSV @herbertong
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TezLab retweeted
And some stats.
Unfortunately only discovered @TezLabApp half way through ownership… so around 50% of driving stats here!
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TezLab retweeted
You can’t make this up. 😂
Tesla now has 420 Model Y Robotaxis and 69 Cybercabs registered in Texas.
The prophecy has been fulfilled.
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Cybertrucks perform really well.
Cybertruck 4680 cells have very impressive degradation.
After two years and ~30K miles, this Cybertruck battery still has 94.5% capacity remaining. Incredible.
If you're wondering what your car's capacity is, @TezLabApp has a pretty cool app to check it.
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TezLab retweeted
If you'd like to jump straight into the early integration demo of Grok Bot from the Tesla onboard Grok voice before reading the article, here's the short video.
It's only the tip of the proverbial iceberg.
I am doing so much more now after a few weeks of testing and the early enhancements with everyone that was testing and providing feedback.
i.e. While on this @DinerDash2026 road trip, I can tell Grok to order me food or drinks at say, Starbucks, ahead of time and it will even make the paymnt for me and I get the points in my Starbucks account.
Coffee is ready when I arrive.
And this is just a mundane use case. For actual work stuff, you can delegate work to any of your bots, gets status, reports, etc.
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You got it! Shoutout TezLab engineering team. So strong.
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Nice head to head comparison.
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Next week will mark the first time that a purpose built Robotaxi (Cybercab) with no steering wheel or pedals that can be mass produced will offer rides to members of the general public in North America, and 99% of the population has zero clue this is about to happen.
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Battery Health for Rivian is live. ⚡
We built it to give Rivian owners the honest number on their battery that matters:
🔋 Battery-health percentage
⚡ Real usable capacity today versus when new
📈 Maximum range tracked over time
🚙 Fleet comparison against the same model, year, and trim
✅ Health verdict anchored to Rivian’s warranty thresholds
🔒 Battery data only—no vehicle controls, and your credentials are never stored
♾️ Supports every Rivian and as many vehicles as you own
Buy it once. No monthly fees. The same purchase covers your next Rivian too.
Available now on iOS. Google Play coming soon.
batteryhealth.app/rivian
@Rivian @RivianTrackr @Out_of_Spec @RivianClubs
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TezLab retweeted
A new paper "Stealing Reasoning Traces from Proprietary LLM APIs" will make you look at hidden reasoning differently
Hidden reasoning is something the model does somewhere inside the black box. But with AI agents, parts of that reasoning can actually travel between calls and models as encrypted state.
And researchers behind "Stealing Reasoning Traces from Proprietary LLM APIs" found they could recover some of it without breaking the encryption.
Then they went further and looked at public agent logs. They found passwords, API keys, access tokens and personal information hiding inside these reasoning blocks - sometimes even when the visible conversation looked completely clean.
And there’s another thing I find especially interesting - these blocks can carry instructions too.
→ So hidden reasoning isn’t necessarily just a log of what happened. In an agentic system, it can influence what the system does next.
This means hidden reasoning is also becoming part of the infrastructure of AI agents.
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Agreed
~2,000 Tesla fans are going to descend upon the city of Austin in October for @theXtakeover. I hope Tesla has a lot more Robotaxis in its fleet by then to handle the massive demand I suspect they’ll see lol. For a lot of those fans, this will be their first Robotaxi rides.
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Our Rivian Battery Health product has been approved by Apple for distribution. We're making a couple more changes but hope to go live next week. If you or someone you know has a Rivian, pass this along. Signup here to be notified when live -> batteryhealth.app/rivian @RivianTrackr @BayAreaRivians @RivianOwners
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1/ Your car can now talk to any AI.
TezLab MCP is open to every Pro member. Connect your Tesla or Rivian to Grok, Claude, ChatGPT, whatever you use — and ask it real questions about your driving.
2/ Not just raw data. Actual reasoning over your charging, trips, battery, and patterns.
"How much did I spend charging last month?" "What's my battery health looking like?" "What patterns do you see in my driving?"
3/ You can also tell it to do things. "Warm up the car before I leave" — with a confirmation before anything touches your Tesla. Read-only by default, revoke access anytime.
4/ Setup takes about a minute. Add TezLab as an MCP server in your AI client, sign in with your TezLab account, and start asking.
{
"mcpServers": {
"tezlab": { "url": "mcp.tezlabapp.com" }
}
}
5/ 20 tools across 10 categories — drives, charging, battery health, efficiency, road trips, chargers, stats, Tesla commands. Works with any MCP client.
This started as a Founders preview. They helped shape it. Now it's for every Pro member.
6/ If you've been meaning to try Pro, this is a good week. 14-day free trial, MCP included from day one → tezlabapp.com/mcp
And if you build something fun on top of it — a dashboard, an automation, a weirdly specific question about your commute — send it our way. We want to see it.
@wholemars @Tesla_AI
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We've been hard at work building out our extensive @rivian offering with - Rivian Battery Health. Almost ready for prime time. If you're not already a Rivian TezLab customers and want to be the first to try the app, sign up here - batteryhealth.app/rivian . It's beautiful. Shoutout to Rivian for being a great partner. @RivianTrackr @RivianOwners @RivianClubs @WassymBensaid
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These numbers are so wild. So much growth.
In April I ran the numbers and said the fleet would hit 10 billion FSD miles in early June.
It got there the first week of May. Almost a month early.
This week it crossed 12 billion. 4.55 billion of those are city miles — intersections, pedestrians, unprotected lefts. The hard stuff.
I didn't miss the number. I missed the slope.
In April the fleet was adding 130 million FSD miles a week. Now it's 210 million. A 60% jump in three months. The line is bending.
Here's the number you won't find in a press release: 48% of FSD drives now finish without a single human touch. No takeover. No tap of the wheel. Start to destination, the car did all of it.
We can see that because Gigalytics is built on the TezLab fleet — the most popular app Tesla owners run. Real drives. Real telemetry. Not a demo, not a hand-picked clip.
And it's why the forecasts keep coming in low. Every new version pulls more owners onto FSD. More owners, more miles. More miles, more data. More data, better versions. Better versions pull the next batch on.
That's a flywheel, not a trend line. Adoption just crossed 15% of the fleet for the first time.
9 billion in April. 12 billion in July. At this pace, 13 billion is weeks away.
I'll keep counting.
Sharing the truth — real fleet data from @TezLabApp / Gigalytics.
@munster_gene @wholemars @CernBasher @herbertongg2 @farzyness
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TezLab retweeted
Hey Tesla Family… I know you all use different apps other than just the official Tesla app. I use @TezLabApp to keep track of my FSD miles plus road trips as well. It’s great to have groups in it too.
Whoever uses TezLab and would like to join this group I created, come join, let’s see how big we can make it.
tezlab.group/tesla-fam
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Summer road trip season is here, and TezLab Pro was built for it. ☀️🛣️
Just drive — we track the rest:
🤖 FSD tracking (every go-pedal push + brake, most accurate anywhere)
🗺️ The best Supercharger map — reviews, comments, videos
📍 Range rings
🚙 Unlimited trip history
Relive every mile 👉 tezlabapp.com/subscribe
ALT www.tezlabapp.com
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