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…
thisorthis.ai launched on June 27, 2024 with 135 votes, #398 of 4,672 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 2 years on.
What it does
thisorthis.ai streamlines AI model comparison, saving you time and effort. Test prompts across multiple models, analyze differences and share them instantly. Optimize your AI strategy with data-driven comparisons, and make informed decisions faster.
Stop switching between AI tools. Compare GPT-4o, Claude, Gemini and 50+ models side-by-side. 500+ prompts, organized workspaces, image generation. Free to start.
In the maker’s words, at launch
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…
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Ithy AI2025 · ithy.com · ▲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…
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