Lemon Slice Live
AI
video avatar generation
SHOW HN2025
195points
84comments
#340of 3,837 in 2025
Top 9%of 2025 by points
How HN took it
CuriousMostly questions and neutral comments
19 positive, 35 neutral or asking, 3 mixed, 5 critical, out of 62 comments about the project. Thread score +0.27.
Design: 3 for, 2 againstExecution: 4 for, 0 againstPerformance: 2 for, 2 againstIdea: 2 for, 0 againstPricing: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Real-time video chat feels impressively natural
From 3 comments
This is impressive. The video chat works well. It is just a hair away from a very comfortable conversation. I'm excited to see where you have it a year from now, if it turns out…
zebomon on HNReally cool stuff. It felt strangely real. Impressive!
wouterjanl on HNThis is very impressive. Any details about model architecture and size? Input and output representation? How does voice work? You mentioned Deepgram. Does it mean you do…
lostmsu on HN
Fun demo with well-known characters
From 2 comments
this was overall fun. better than expected. i'm an office fan so tried dwight and michael scott. i hope you folks get better at this. excited to see where you get in the next 12…
anishsikka on HNMax Headroom lives !
aorloff on HN
Objections
Latency of 3-6 seconds makes conversation awkward
From 2 comments
- The maker's post
This is impressive. The video chat works well. It is just a hair away from a very comfortable conversation. I'm excited to see where you have it a year from now, if it turns out…
zebomon on HN
Email signup wall before trying the demo
From 2 comments
If you could lower the email signup for a few hours, that'd be nice. I'm not going to sign up for yet another service I'm unsure about.
tetris11 on HN"Try it now live" and then request me to enter my email. I'll pass thanks.
doublerabbit on HN
Use of copyrighted characters raises IP concerns
From 2 comments
So basically the old open-source live-portrait hooked up with audio output. Was very glitchy and low res on my side. btw: Wondering if it's legal to use characters you don't have…
mentalgear on HNA really compelling experience. It seems clumsy to use copyrighted characters in your demos. Seems to me this will be a standard way to interact with LLMs and even companies -…
andrewstuart on HN
Low resolution and glitchy output
From 1 comment
So basically the old open-source live-portrait hooked up with audio output. Was very glitchy and low res on my side. btw: Wondering if it's legal to use characters you don't have…
mentalgear on HN
Requests
Faster response latency
From 2 comments
Glad you like it! IMO, biggest things to improve on are 1) time to video response and 2) being able to generate more complicated videos (2 people talking to each other, a person…
sid-the-kid on HNThank you! Very much agree that we need to improve speed to make the conversation more comfortable. Our target is <2sec latency (as measured by time to first byte). The other…
lcolucci on HN
Web embeddable version
From 1 comment
Are you going to offer a web embeddable version of the Live offering?
o_____________o on HN
API access
From 2 comments
This is just brilliant. Hope you succeed, so that eventually I get an API to play with.
ashishact on HNNice! Thanks for sharing. I hadn't seen that paper before. Looks like they take in a real-world video and then re-generate the mouth to get to lip synch. In our solution, we take…
sid-the-kid on HN
Questions
Model architecture and size
From 1 comment
This is very impressive. Any details about model architecture and size? Input and output representation? How does voice work? You mentioned Deepgram. Does it mean you do…
lostmsu on HN
Cost of GPU inference
From 2 comments
Nice! What infra do you use for inference? I'm wondering what the cost-effective platforms are for projects like this. GPUs on AWS and Azure are incredibly expensive for personal…
dheera on HNHow much would this demo cost you from the HN traffic if you don't mind me asking?
ivape on HN
Alternatives named
HeyGen
From 1 comment
Tolan
From 1 comment
character.ai
From 1 comment
Hey, I tried this and enjoyed using the demo - looks really cool! Just curious how it compares to what character.ai recently put out as well
snappyleads on HN
LivePortrait
From 1 comment
So basically the old open-source live-portrait hooked up with audio output. Was very glitchy and low res on my side. btw: Wondering if it's legal to use characters you don't have…
mentalgear on HN