Cluely vs ULTRACODE
What you need to know about Cluely
When your career depends on it, you need to do your homework. Here’s a breakdown of everything you need to know about Cluely and ULTRACODE before your interview.
Undetectability and Virality Don’t Go Together
We aren’t trying to be well known or mainstream. Viral products have a target on their back and get patched by interview platforms.
- There are at least 4 known coding interview platforms that can detect Cluely, while those same platforms cannot detect ULTRACODE.
- We at ULTRACODE proudly spend over $10k/month to maintain enterprise-grade proctor accounts with CoderPad, HackerRank, CodeSignal, Codility and more. None of our cheaper competitors do this.
- We can GUARANTEE undetectability because we test ULTRACODE on every top interview platform DAILY to make sure we are still undetectable.

Cluely Can’t Pass Coding Interviews
Cluely is an AI notetaker that tries to be a jack of all trades but is a master of none. It doesn’t even write code out of the box!
- ULTRACODE is built for one use case: passing every technical interview without detection.
- ULTRACODE is fine-tuned by a team of engineers from Stripe, Google, Meta and Microsoft on every problem type, including system design, LeetCode, object-oriented design and trivia, and has been battle-tested in thousands of interviews.
- ULTRACODE offers unlimited access to fine-tuned versions of the most powerful foundational models, while Cluely only offers cheaper models.
- Cluely simply cannot write code at the level needed to get a “hire” rating at top companies.
ULTRACODE Invented Invisible AI for Coding Interviews!
ULTRACODE launched in early 2024, a full year before Interview Coder and Cluely even existed.
- Cluely’s CEO once accidentally left their API keys in their public GitHub repo, while ULTRACODE has never had a data breach despite being in business much longer.
- ULTRACODE was founded by two ex-FAANG staff-level engineers and an AI research PhD, while Cluely was founded by a recent college dropout.
- ULTRACODE is invisible to screen sharing, so you can see it but your interviewer can’t.
Solve ANY Problem, Not Just Coding Questions
Unlike our competitors, ULTRACODE isn’t limited to coding questions.
- ULTRACODE solves everything from LeetCode problems to object-oriented design to trivia and anything else you throw at it!
- ULTRACODE even solves the hardest system design problems!
Side by side. No contest.
Undetectable, Kernel-Level Hotkeys
ULTRACODE handles hotkeys at the kernel level, so no keystroke is ever passed on to the interview. Test any AI tool yourself with a keyboard-logging website like this one.
AI Fine-Tuned Specifically for SWE Interviews
Built by former senior and staff-level FAANG engineers and AI PhDs (ex-Stripe, Google, Amazon, Microsoft).
The Most Powerful Foundational Models
Unlimited access to the most powerful — and most expensive — reasoning models from OpenAI and Anthropic.
Gold Standard for Undetectability
Built specifically for undetectability in SWE interviews: ULTRACODE has proctor accounts with all the leading interview platforms, including CoderPad, HackerRank and CodeSignal, to guarantee it.
System Design Support
ULTRACODE supports ALL question types, including system design, object-oriented design, LeetCode and trivia.
Unlimited Lifetime Access
ULTRACODE is not a subscription. Pay once and get unlimited access for the rest of your life, with every future update and upgrade included.
Built Only for Technical Interviews
Cluely is optimized for note taking in meetings and sales calls. ULTRACODE is built for one thing: passing technical interviews.
Not a Mass-Market Product
Cheap viral products have giant targets on their backs and have already been patched and made detectable on platforms like HackerRank. See HackerRank’s own write-up.
Built by ex tech leads and staff software engineers from
Lifetime deal
Get Unlimited LIFETIME Access to ULTRACODE
One payment of $799 $1,799 — no subscription, use it forever.