AI · alternatives · 2026
24 alternatives to ModelSignature – Get end-user feedback for your OS AI models
I was surprised to learn that open source model providers never get feedback/reports from their actual end-users. Once you publish your OS model, you only get feedback from technical users who find the HF community tab or manage to email you directly. I wanted an easy way to tell the model provider mid conversation that their model sucks & why. I've been working on ModelSignature, a system that embeds a feedback URL (a “Model Signature”), directly into model weights using LoRA fine-tuning. Users can ask the chatbot "where can I report issues?" and the model responds with its…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Opper AI▲229Hey HN! After the Car Wash Test post got quite a big discussion going (400+ comments, https://news.ycombinator.com/item?id=47128138), I spent the past few weeks building a tool so anyone can run these kinds of questions and get structured results. No signup and free to use. You type a question, define answer options, pick up to 50 models at a time from a pool of 200+, and they all answer independently under identical conditions. No system prompt, structured output, same setup for every model. You can also run a debate round where models see each other's reasoning and get a…
Jul 2026 · opper.ai · its alternatives →
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A few days ago, I responded to a comment by bloggergirl offering to read anyone's web copy and help. I shot off an email hoping for a paragraph or two of feedback on my startup's copy. Instead I received a professional, detailed deck of tons of invaluable well thought out feedback. It must have taken her an entire afternoon. Here's a link to it: http://www.slideshare.net/shereefb/recommendations-for-bettermeans To top it off, this isn't someone with a lot of free time on her hands, she's only days away from launching her own startup (page99test) This community blows my mind!
2010 · slideshare.net · its alternatives →
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Uxia▲548Hi HN, As PMs (Google, Gopuff, Shiji), my cofounder and I ran hundreds of user tests over the years. And every time it felt broken: It could take 2–5 days just to get enough usable results We spent hours watching recordings to extract a handful of insights “Professional testers” rushed through tasks for pay, creating biased feedback Platforms often started at €10k+ per year, with hidden fees on top The result: slow iteration cycles, unreliable feedback, and user testing that often felt like a tax rather than a tool. We started asking: what if AI could help? Could synthetic users replicate…
2025 · uxia.app · its alternatives →
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TensorZero▲307Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation:…
2025 · github.com · its alternatives →
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- 6FT
Hey HN! When implementing an AI-powered feature for a project, we—and many people we've talked to—often reach a point where we have to choose an AI model but aren’t sure which one best fits our constraints or where to even start. Unfortunately, the advice to "just use chatgpt" is not always a good one. What if I want an open-source model? What languages does it support? What about context window size or the number of parameters? There are thousands of AI models already out there and many of them are perfect for certain problems. That’s why we’ve carved out this part of our product as a free…
2024 · app.elementera.ca · its alternatives →
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Feedback OK▲16FeedbackOK lets you send anonymous, constructive feedback to colleagues using just their LinkedIn URL. It uses AI to ensure insights stay professional and helpful, and recipients sign in to claim and view feedback securely. Built-in safety guardrails help keep things respectful and actionable. Check it out and let me know what you think!
2020 · feedbackok.com · its alternatives →
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Compare A to Z of AI Models | All in One Place
2025 · zignuts.com · its alternatives →
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I run a small AI lab and playground and got super excited about Anthropics paper "Verbalizable Representations Form a Global Workspace in Language Models" (https://transformer-circuits.pub/2026/workspace/index.html) It talks about how they use a tool they call a Jacobian Lens to view inside the middle layers of LLM while it's working before it commits to a word (token). I wanted to see if I could get a version of this running on the open models and to my surprise it worked! I ran some experiments with it and build a public facing free tool anyone can use with your…
Jul 2026 · lucid.earthpilot.ai · its alternatives →
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Track how AI models feel in everyday use through public community feedback, 7-day experience scores and trends. This is not a capability benchmark.
Aug 2026 · isaidumber.today · its alternatives →
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Backsy.ai▲11I got tired of endless survey forms that nobody wants to fill out. So I built Backsy, an AI-powered feedback tool where people can just type (or speak) their thoughts, and AI auto-scores the relevant product attributes—no need for structured forms or manual analysis. Backsy also works with bulk feedback (think scraped Reddit threads, support emails, app reviews, etc.), making it easy to extract trends from raw user comments. Would love to hear your thoughts—especially if you’ve struggled with feedback fatigue or collecting useful insights at scale!
2025 · backsy.ai · its alternatives →
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Yo for Figma▲22Talk to users before you have users. Right in Figma.
2025 · figma.com · its alternatives →
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Get real user experiences & expert reviews on AI tools
2024 · authorityfeedback.com · its alternatives →
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MsgMorph▲5Hey HN, for sometime now I am building useful products for the community and every time I build some product I really struggled with collecting feedback for it. I have integrated feedback widgets in the past from posthog and also sent users email from my personal email and much more and mostly no one cared to reply or they ignored the in app widget. So I had to manually send them these email sequences with follow ups to get the feedback out of the users. Because feedback is really important if you want to build a product actually for its users. And then even if I got the feedback from people…
2025 · msgmorph.com · its alternatives →
- 15ModelMatch▲11
Compare open-source models for image understanding tasks
2025 · findbestmodel.app · its alternatives →
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Hi everyone! Here is an open source implementation of a decently performant server hosting zero-shot image models (CLIP for image classification, OWL-ViT-ST for object detection), with an extra algorithm to allow users to give the models feedback when they make mistakes! We built a company off this flavor of tech two years ago and have clients who are currently using our commercial API. We are now moving on to other projects but want to make sure our clients still have access to the approaches that they've grown to rely on, so we're open sourcing a simple implementation that they'll be able…
2024 · github.com · its alternatives →
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Howdy friends. I've been a zero to one product manager for 12 plus years and along the way I kept borrowing pieces from different discovery frameworks until I had a methodology of my own, one that actually raises the odds of an idea succeeding. This does not replace user interviews obviously, but it leads you in the right direction. Looking forward for your feedback
Jul 2026 · github.com · its alternatives →
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Announce updates, collect feedback, and reach your users
Mar 2026 · usersignal.co · its alternatives →
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Get instant user feedback
Jan 2026 · app.usercall.co · its alternatives →
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ModelRed▲10Hi everyone, We built ModelRed to test AI models and apps for security issues. Ran 4,182 attack probes against 9 leading models to see what would break. Leaderboard: https://modelred.ai (no signup, just check it out) Claude scored 9.5/10 but still failed on medical/financial prompts. Mistral Large scored 3.3/10. The gap between best and worst is huge. We test for prompt injections, data leaks, jailbreaks, risky tool calls, domain specific hacks, basically everything that goes wrong when your LLM has access to real data and APIs. The platform runs these tests…
Nov 2025 · modelred.ai · its alternatives →
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We (@emrenx and I) wanted a simple little tool that would help us get better feedback so we could move faster. We knew that anonymizing the data would help. For more research on this approach, check out 360-degree feedback http://en.wikipedia.org/wiki/360-degree_feedback. http://pitchback.me/
2012 · en.wikipedia.org · its alternatives →
- 24
Hey HN - I built ModelGuessr, a game where you chat with a random AI model and try to guess which one it is. A big open question in AI is whether there's enough brand differentiation for AI companies to capture real profits. Will models end up commoditized like cloud compute, or differentiated like smartphones? I built ModelGuessr to test this. I think that people will struggle more than they expect. And the more model mix-ups there are, the more commodity-like these models probably are. If enough people play, I'll publish some follow-up analyses on confusion patterns (which models get…
Dec 2025 · model-guessr.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →