Echo
AI
model routing and ensembling
SHOW HN2026
484points
228comments
#55of 4,366 in 2026
Top 2%of 2026 by points
How HN took it
MixedNo clear lean
10 positive, 35 neutral or asking, 6 mixed, 47 critical, out of 98 comments about the project. Thread score -0.38.
Idea: 8 for, 14 againstDesign: 0 for, 10 againstPricing: 0 for, 7 againstExecution: 0 for, 4 againstDocs: 1 for, 2 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
Model complementarity and ensembling idea is interesting
From 2 comments
I think one of the most interesting takeaways is that model selection may matter more than model size. The industry has largely focused on building larger models, but your…
smokeeaasd on HNI don’t find the recent spate of blog posts and systems delegating and combining LLMs to get better performance particularly interesting. Especially given that anyone who’s taken…
bnjemian on HN
Objections
Claimed cost savings are unclear versus subscriptions and caching
From 3 comments
> Fable-level results at 1/3 the cost using open-weight models But we get ~$2500/mo worth of Fable credits for $200/mo on Anthropic pan? I'm still confused why people (who don't…
jacobgold on HNThis does not really work well, if you don't know the complexity of the problem ahead of time and ensure all future conversations go to the same model. Else, you break the cache…
subygan on HNbut u wouldnt get caching savings
purplecats on HN
Sign-up flow and login issues
From 3 comments
Can't sign up: `too many authentication attempts`
qainsights on HNNo benchmarks, no info on which models are used, ai generated video, just a signup page with nothing else. Anyhow, this kinda reminds me of that quote about architecture: "We…
kamranjon on HNNo single signin. Privacy policy allows training. No try it first without credit card. It's a good idea, but this looks premature.
tj800x on HN
Ensembling is not new
From 3 comments
I don’t find the recent spate of blog posts and systems delegating and combining LLMs to get better performance particularly interesting. Especially given that anyone who’s taken…
bnjemian on HNenjoying how people are re-discovering ensemble methods.
fgoose180 on HNThe "ensemble of models" is nothing new. It's just that it's not really a moat that can be monetized. In the end you're always paying for something. You can engineer an elaborate…
Art9681 on HN
Benchmarks thin or hard to verify
From 2 comments
No benchmarks, no info on which models are used, ai generated video, just a signup page with nothing else. Anyhow, this kinda reminds me of that quote about architecture: "We…
kamranjon on HNI’m very confused on what this is, my initial thought was “oh nice, open source router.” I go to the website…and it’s a sign up. I expected a repo. Otherwise how do I use it? As…
ninjahawk1 on HN
Requests
Benchmarks for coding and agentic tasks
From 1 comment
thanks to everyone for taking the time to try Echo and share feedback, this is precisely why i wanted to launch early. i am going to try to address a couple of topics that came…
adam_rida on HN
Clearer eval page with more graphs
From 1 comment
Hi this is very cool. As a student (read: more dumb than adults), I find the eval page too loaded with words. Maybe more graphs could help?
sudo_cowsay on HN
Questions
How does this differ from OpenRouter Fusion
From 3 comments
how does this differs from OpenRouter fusion?
wizche on HNHow is this different from what that feature OpenRouter does?
thatxliner on HNSeems similar to Openrouter Fusion - https://openrouter.ai/docs/guides/routing/routers/fusion-router
meander_water on HN
What signals decide which models participate
From 1 comment
What signals does Echo use to decide which models should participate before it has seen their outputs?
islambaraka on HN
Alternatives named
OpenRouter Fusion
From 2 comments
Seems similar to Openrouter Fusion - https://openrouter.ai/docs/guides/routing/routers/fusion-router
meander_water on HNhow does this differs from OpenRouter fusion?
wizche on HN
Sakana Fugu
From 2 comments
There's so many people reimplementing Sakana fugu from its two ICLR papers but no open source version of it.
alightsoul on HNIs this yet another Sakana Fugu / OpenRouter Fusion?
ototot on HN