Mathieu Rihet

Super proud that our suite of AI Voice Agent products is leading the way to full healthcare automation. Doctors can finally do their jobs!

@edorahg @evisdrenova @TrustVanta He did not contact customer success; he was just replying to the initial thread. All I'm saying is he could have multi-channeled, but definitely understand the frustration

@mathieu1865 @evisdrenova @TrustVanta Hmmm.. He did contact Customer Success. And this is not an edge case. They clearly are not taking into account the complete communication chain.

I will never use @TrustVanta again after how they just treated us. My company was acquired in August of 2025. We promptly emailed Vanta to inform them that we are shutting down our business and need to cancel. After 1 month, they finally replied with direction. "Can you send us acquisition documents?" I replied back and said "I can't legally share our acquisition documents with a vendor, what do you need?" They then ghosted us until January of 2026 (5 months later). During this time, they charged us for 2 quarterly payments (about $5K total). In January 2026, they finally said they need a certificate of dissolution, which I sent to them. They then refunded us $700. I asked for a refund dating back to August 26th when we initially sent the cancellation email. They responded with, "we cannot refund you because the Vanta software was still running until January of 2026. " It was running BECAUSE YOU GHOSTED US AND DIDN'T PROCESS OUR CANCELLATION. @christinacaci is this how you do business and treat your customers who trusted you for 2+ years?

@gabriel1 Yeah, that's so true.

hyper delusion of how good you are and hyper optimism is like 80% of making it

@Layton_Gott Build an MVP and ask for feedback.

Build a waitlist? Or Build a MVP? Which is better to test demand?

@KevinSzabo14 I don't think anybody is scared.

Why are people scared of AI?

@TTrimoreau Knowing how to prompt your AI agent

As a founder What is the single most profitable skill to have right now?

@t_blom About to already be the case for us 😭

By the end of 2026, I predict token spend will be greater than engineering salaries at early stage startups.

@garrytan I've been saying this: at this point, you should literally make it a company.

GStack still growing every day.

@paulg I found Superhuman's inbox to be pretty good at filtering those. Try it out!

I now get so many AI-generated replies that it's just too much work to report them for spam and block them, so I'm downshifting to muting.

@sohan_zhang No response is a response. I don't think this is disrespectful and have seen way worse horror stories. At Novoflow, one of our term sheets got pulled without warning. We thought we would never recover, but thankfully did.

one of the most frustrating experiences about the fundraising process is how decent respect gets thrown out the window one VC fund scheduled 3 meetings with myself and the team over 3 weeks, the last of which included an in person meetup that I took the courtesy of meeting them in the hotel they were staying at in SF. after a conversation, they mentioned that they would get back to me at the beginning of next week. cue 5 days later and i ask for an update. ghosted. i sent follow-up updates, as requested, over the span of a week, and still no response. i completely understand rejection, but it's very frustrating to take multiple meetings over weeks and get completely no response. future YCombinator founders, check the Bookface for investor reviews.

@HealthcareAIGuy @EvidenceOpen It's all fun and games until you ask it to integrate into a legacy electronic health record system!

NEW: OpenEvidence just launched “Coding Intelligence,” an AI medical coding feature. It auto-generates CPT, ICD-10, and E/M codes directly from visit notes, with built-in rationale and code sequencing to maximize reimbursement --applied automatically after each visit.

[1] for the last two years, the conversation has been about individual productivity. give everyone Copilot. ship faster. write more code. but the real shift is much bigger than that. it's not about making people faster. it's about redesigning the entire org around agentic systems — and the companies doing this are starting to look radically different. 🧵

@realleolu This is an amazing take, and you should make an article on this!! Post it on your blog.

@BryanOnel86 You are having way too much fun with this, Bryan 😭

You just can’t make this stuff up.

@SaiMandhan @HillValleyForum Cool picture!

live from the hill & valley forum so many great minds and a lot of optimism excited for the future, bullish on america 🇺🇸🫡

@ajhodls I mean, that is an amazing thing.

there are now ~2000 new YC founders per year (!!!) no joke like 1 out of every 2 people who relocated to SF in 2025 must be a YC founder, that's insane

@beyoumf I'm trying my best by being a reply monster, but it honestly hasn't been working out so far.

Are you growing your X account?

@boyaviatorr Keep building, tbh.

After getting rich, what next?

@manojdotdev I feel like you can vibe code, but you can't do it super well.

Unpopular opinion If you can't code, you can't vibecode.

@SherryYanJiang Getting accepted into YC should never be a signal to success. Part of YC's thesis is recruiting people that don't actually need YC.

yes i too have been rejected by yc 3x but i stopped using that as a signal for success. there are more cracked startups that don't get into yc than actually get in. - they can only bring a certain number into each cohort. - they have a specific thesis - sometimes it's not about how good your company is, it's just timing and fit so just keep doing what you do and you'll have 100x other options to be successful.