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AI · alternatives · 2026

24 alternatives to Theia

Catches your AI's hallucinations and flattery, live

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Athina AI▲509

    Monitor LLMs and automatically detect hallucinations in prod

    2024 · athina.ai · its alternatives →

  2. 2

    Chat with AI using your API keys. Pay only for what you use. ChatGPT, Gemini, Claude, and other LLMs supported. The best chat LLM frontend UI for all AI models.

    2023 · typingmind.com · its alternatives →

  3. 3
    Verol▲98

    Stop AI hallucinations

    Jun 2026 · chromewebstore.google.com · its alternatives →

  4. 4
    Sider 4.0▲211

    Group chat with multiple AI bots to reduce hallucinations

    2023 · sider.ai · its alternatives →

  5. 5

    Detects hallucinations (false info) in AI-generated content

    2023 · its alternatives →

  6. 6

    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…

    2024 · thisorthis.ai · its alternatives →

  7. 7
    Ithy AI▲167

    This 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 →

  8. 8

    Everything you need to evaluate & improve prompts and LLMs

    2023 · dioptra.ai · its alternatives →

  9. 9
    Finseo.ai▲175

    Track your visibility in chatgpt, perplexity, gemini & more

    2025 · finseo.ai · its alternatives →

  10. 10

    Hi HN, We just launched [AI Page Ready](https://aipageready.com) — a tool to check if your web pages are discoverable and understandable by AI tools like ChatGPT, Claude, Gemini, and Perplexity. It runs 40+ checks across six areas: Discoverability & Crawlability, Structured Data & Semantics, Content Quality, Answer-Ready Formatting, Accessibility & Rendering, and Deep AI LLM-specific checks. Would love your feedback — especially if you work in eCommerce, SEO, content, SaaS, or are trying to get traffic from AI tools. (Also open to ideas on what else to add to the tool!)

    2025 · aipageready.com · its alternatives →

  11. 11

    AI detector & checker for ChatGPT, Claude & Gemini

    2024 · xdetector.ai · its alternatives →

  12. 12

    Best ChatGPT detector

    2024 · wordvice.ai · its alternatives →

  13. 13

    Hi all! This morning, we released a new Apache 2.0 licensed model on HuggingFace for detecting hallucinations in retrieval augmented generation (RAG) systems. What we've found is that even when given a "simple" instruction like "summarize the following news article," every LLM that's available hallucinates to some extent, making up details that never existed in the source article -- and some of them quite a bit. As a RAG provider and proponents of ethical AI, we want to see LLMs get better at this. We've published an open source model, a blog more thoroughly describing our methodology (and…

    2023 · vectara.com · its alternatives →

  14. 14

    The first GPT-based solution that uses hallucinations from LLMs for divergent thinking to generate new and novel ideas. Hallucinations are often seen as a negative thing, but what if they could be used for our advantage? dreamGPT is here to show you how. The goal of dreamGPT is to explore as many possibilities as possible, as opposed to most other GPT-based solutions which are focused on solving specific problems.

    2023 · github.com · its alternatives →

  15. 15

    Stop AI hallucinations and verify your AI-generated text

    2025 · warphaze.com · its alternatives →

  16. 16

    We built live AI evaluation to detect hallucinations, grounding issues, and drift as outputs are generated. This helps teams move GenAI from pilots into production.

    2025 · ragmetrics.ai · its alternatives →

  17. 17

    Spot where your LLM might make mistakes on documents

    2025 · hallucina-gen.actualization.ai · its alternatives →

  18. 18UA

    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 →

  19. 19

    AI loaded with Satellite Intelligence for low hallucinations

    2025 · vortx.ai · its alternatives →

  20. 20

    Free Generative Engine Optimization audit tool

    2025 · its alternatives →

  21. 21

    Audit every LLM hallucination in your APIs & docs

    Jun 2026 · docutect.com · its alternatives →

  22. 22
    FixProm▲15

    Speak your mind, we'll refine it.

    2025 · its alternatives →

  23. 23

    AI research tool where YOU choose which publishers to trust

    Mar 2026 · hallucinationbuster.com · its alternatives →

  24. 24

    A better UI for Chat AI (ChatGPT Claude Bing Gemini etc)

    2024 · aichatone.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 →