AI · alternatives · 2026
24 alternatives to thisorthis.ai
Hey HN — I'm Parth, I built thisorthis.ai because I was tired of copy-pasting the same prompt across ChatGPT, Claude, and Gemini tabs to figure out which model actually gave the best answer. What it does: You type one prompt, pick 2–6 models (we support 47 text models and several image models across OpenAI, Anthropic, Google, xAI, Meta, Amazon, Mistral, Cohere, AI21), and see every response side-by-side. There's also a feature called SmartPick that uses an LLM evaluator to score each response on Clarity, Accuracy, Completeness, and Helpfulness — useful when you're comparing 6 models and…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. thisorthis.ai launched in 2024; newer entries below may have overtaken it.
- 1
Ithy AI▲167This is another one of my automate-my-life projects - I'm constantly asking the same question to different AIs since there's always the hope of getting a better answer somewhere else. Maybe ChatGPT's answer is too short, so I ask Perplexity. But I realize that's hallucinated, so I try Gemini. That answer sounds right, but I cross-reference with Claude just to make sure. This doesn't really apply to math/coding (where o1 or Gemini can probably one-shot an excellent response), but more to online search, where information is more fluid and there's no "right" search engine + text…
2025 · ithy.com · its alternatives →
- 2
ChatBetter▲329Use ChatGPT, Claude, and Gemini Side-By-Side
2025 · chatbetter.com · its alternatives →
- 3
PrompTessor▲125After countless hours of solo coding, designing, and iterating, I’m both excited and nervous to share my first-ever product: PrompTessor — now live. As someone who constantly experiments with AI tools like ChatGPT and Midjourney, I often found myself stuck in a loop of trial-and-error. The issue wasn’t always the AI — it was often the prompt itself. That observation became the starting point for PrompTessor. This tool doesn’t just optimize your prompt — it analyzes it. It gives you: - A prompt score - A breakdown of strengths and weaknesses - A fully optimized version of your prompt - And…
2025 · promptessor.com · its alternatives →
- 4
Compare AI models side by side with one prompt
2025 · aimodelscompare.com · its alternatives →
- 5
- 6
prompts.chat▲63Discover, collect, and share the best AI prompts for ChatGPT, Claude, Gemini, and more. Join the largest community of AI prompt engineers and creators.
Dec 2025 · prompts.chat · its alternatives →
- 7
Compare AI models side-by-side on same prompt
Feb 2026 · testaimodels.com · its alternatives →
- 8
TruthAgent▲25Ask once. Compare multiple AI models. Get one synthesis.
Jun 2026 · truth.agnthub.ai · its alternatives →
- 9
Compare answers from different AI models side-by-side
2024 · overallgpt.com · its alternatives →
- 10
- 11
- 12
Lovelaice▲10Multi-model AI testing, evaluation, optimization made simple
2025 · lovelaice.com · its alternatives →
- 13
Have you ever found yourself toggling between different language models, trying to figure out which one gives the best answers to your complex questions? Trust me, I've been there.
2024 · franz101.substack.com · its alternatives →
- 14
All AI Think▲12Multiple AIs. One question. Smarter answers together.
2025 · allaithink.com · its alternatives →
- 15
Ask 12 LLMs the same question — see who answers best
Oct 2025 · comparelabs.ai · its alternatives →
- 16
- 17UA
Hello hackernews, I am looking for feedback for Labophase.com which is a app that focuses on returning results from multiple ai models at the same time. I currently support: GPT4-Turbo, Claude-2, Google PaLM2, Llama2, Mistral, and OpenOrca. Working on supporting Gemini soonTM. I built it to solve a couple of personal pains I experienced. After reaching out to a couple of users in r/localllama, seems that people would have similar approach to address hallucination, availability, and comparing ai models. Initial feedback came in with some surprises that I'm hoping to get feedback from the…
2023 · labophase.com · its alternatives →
- 18FT
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 →
- 19
- 20
- 21
HN, first things first: one year ago you make me believe in my opensource AI project, and I'm forever grateful[1]. I am back with Beam - a technique to use diverse LLMs to generate responses, and Merge them - all within a snappy UX. I am no researcher, so you'll find a dark-mode blog, and not a light-mode PDF on arxiv :) Blog, open code, and live hosted demo, all published. You can use Beam early on in a chat, where looking at more options is key to be more confident in the answer, but also when no answer if perfect, but fusing many together will work well. Take a look and let me know what…
2024 · big-agi.com · its alternatives →
- 22GV
Hey HN, I just updated my project that compares some LLMs. It uses your prompt for all the models and runs at the same time. You can see the results being generated in real-time and decide what's the best for your use case. I'm open to any suggestions and feedback. Thanks!
2024 · geminivsgpt.com · its alternatives →
- 23
Hey HN, My workflow for any complex queries is to ask it in multiple AI chats (Gemini, Claude, o3,..) in parallel and then continue the conversation with the chat response that I found the most useful. I built a simple open source app that queries 10+ AI models at once and summarizes their answers with a selected combiner AI model. There's a GIF in the github repo that shows it in action. You can try it on your local machine: https://github.com/Nexarithm/multi_model_chat If you are interested, I also made a detailed blog post on technical details, feature of the personal…
2025 · github.com · its alternatives →
- 24JT
Hey HN! My name is Paulo. I made this (free) web app https://www.joinoptimai.com to test, track, and iterate on AI prompts. It tests your prompts against datasets that you upload and layers that over a nice UI so you can flag AI responses & compare different prompt responses in a GitHub diff-like view. This can be used to show stakeholders how your AI response quality is iterating over time. Would love to hear your feedback. Thanks!
2024 · joinoptimai.com · its alternatives →
Also compare
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 →