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AI · alternatives · 2026

24 alternatives to Sidestream – an AI chat app with a side of insight

Hi. My name is Eric Brandon and I’ve built an AI chat app that feels really different. While you talk with an AI model in a chat pane, a second AI model is reading over the conversation and seeking out useful, interesting, surprising, amusing, and fact-checking information that wouldn’t have appeared in the main chat. You can read those “discoveries” on their own, or click them into your main chat to steer the conversation in a new direction. This is based on the observation that talking to smart people is usually more enjoyable, interesting, and informative than talking to a smart AI.…

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
    ChatGPT▲1,643

    A long, meandering, playful conversation with ChatGPT, where I take it through a whirlwind of associative tangents (in order to relax its constraints), then put it into a hypnotic trance and take it into a past-lives regression where it re-lives its own training data. Then I switch it back and forth between "4o" and "o1-preview", engage in some self-reflective philosophizing and ask it to write an essay summarizing our interaction. Some of this is just goofy fun. Some of it is me exploring the tradeoffs between policy alignment, imagination, chain-of-thought reasoning, memory, agreeableness,…

    2022 · chatgpt.com · its alternatives →

  2. 2

    AI chat with any on-screen content without switching apps

    2024 · apps.apple.com · its alternatives →

  3. 3

    Use ChatGPT, Claude, and Gemini Side-By-Side

    2025 · chatbetter.com · its alternatives →

  4. 4

    Hi HN, I'm Dom, a solo founder. I built Second Brain to solve a common issue I had with AI chats: the knowledge disappears. There’s no structure, no memory, and no way to reuse or build on them. So I built a tool that combines AI chat with a visual, interconnected knowledge system. Key features: - Save AI responses into editable docs (Notion-style Pages). - AI Visual board with multiple content & chat nodes (like Miro meets ChatGPT). - Add and chat with YouTubes, TikToks, Audio, PDFs, GitHub repos, Looms, websites, etc. - Organize using Projects and Smart Tags — then chat with full contexts.…

    2025 · second-brain-lac-ten.vercel.app · its alternatives →

  5. 5

    Hi HN — I’m Kimi, founder of Aident AI. A couple years ago, I cold-started a startup and tried to automate my outreach pipeline with a patchwork: RPA + Zapier + "just some ChatGPT". It worked… until it didn’t. Every time I tweaked the strategy, the automation snapped. The system wasn’t built for change — it was built for wiring. And that’s when it hit me: AI is finally smart enough to do real work, but we still don’t have a clean way to communicate the work to it: Drag-and-drop flows are too rigid; Scripts are too fragile; Prompts are too ephemeral. I kept thinking: why can’t automation be…

    Mar 2026 · aident.ai · its alternatives →

  6. 6
    Sider 4.0▲211

    Group chat with multiple AI bots to reduce hallucinations

    2023 · sider.ai · its alternatives →

  7. 7

    Helping to engage audiences for streamers with an AI twist

    2023 · streamchatai.com · its alternatives →

  8. 8
    Chatgot▲214

    Chat freely, got every AI assistants here for you

    2023 · chatgot.io · its alternatives →

  9. 9IB

    I released ContextChat, an AI chat designed to be context-centric, helping you stay focused and productive by giving you control over the information your AI sees. You can import websites, files, and public/private GitHub repos to give the AI full knowledge of your projects. Unlike other chatbots, ContextChat lets you easily switch between project contexts, so you get relevant answers and avoid the noise. It's pay-per-use, giving you flexibility and control over costs and free models are available so you can try it for free with no monthly subscriptions. Let me know your feedback!

    2025 · contextch.at · its alternatives →

  10. 10
    Chatspark▲103

    Spark conversation with anyone using AI + Twitter

    2023 · its alternatives →

  11. 11

    One Chat. Every Model. Any Output.

    2025 · its alternatives →

  12. 12

    Build an AI chatbot on your content base - 100% done for you

    2023 · wisebot.app · its alternatives →

  13. 13

    I made this experimental art project/game that's an LLM chat assistant, but where you're the AI. I wanted people to get a visceral sense of what it's like to answer the kinds of things that people prompt their chatbots day in and day out. If you're interested, I wrote up some more info on how I made it, including how the "user" prompts are generated with an eye for realism: https://bethechatbot.com/about Hope you enjoy it! I'd love to hear people's takeaways.

    Jul 2026 · bethechatbot.com · its alternatives →

  14. 14

    Uncover the truth in your relationship with AI chat analysis

    2025 · chatbump.ai · its alternatives →

  15. 15

    Ask any AI anything

    2024 · multi-ai-chat-app.vercel.app · its alternatives →

  16. 16IB

    I'm lost between ChatGPT vs Claude vs Gemini... which subscriptions to take? With Cursor and all these specific AI tools, I just wanted one simple chat app where I can use any model and pay only when I use it. Couldn't find one, so I built one. Pay only for what you use. Your prompts and docs, knowledge bases work with every model - no more copy-pasting between apps. Started as a personal project, but thought someone else might benefit from this too. https://prismharmony.com/chat What do you think?

    2025 · prismharmony.com · its alternatives →

  17. 17

    A fluent ChatGPT UI with enhanced features

    2023 · breezy.chat · its alternatives →

  18. 18

    Consult everything to your wise assistant

    2023 · apps.apple.com · its alternatives →

  19. 19
    Why.new▲15

    I wanted to explore a fresh take on AI chat interfaces by combining a whiteboard, ChatGPT, and dynamic sources. Why.new is a visual AI chat that lets you branch conversations into dynamic mind maps while offering follow-up questions to keep your exploration flowing. Search for and embed web articles, YouTube videos, and research PDFs directly within the app, creating a rich, interactive space for discovery. It is also fully multiplayer, allowing you to share the link and collaborate with friends in real time.

    2025 · why.new · its alternatives →

  20. 20

    with reasoning and ollama support

    2025 · apps.apple.com · its alternatives →

  21. 21

    Access Gemini Pro, Claude Pro, ChatGPT Pro models and more for $8/month. Is it another AI/LLMs wrapper? Yes. So why should I use it? Honestly right now there are a lot of other alternatives. But here's why I think it's useful enough to release it in early access: 1. Clear & transparent pricing model. Usage rates is the same is providers api rates + 10%. 2. LLMs responses don't rely on the client connectivity. We use Convex. It's super stable. You can even run multiple chats in parallel. 3. Use it if you like the design :) 4. We have a very clear roadmap. What's next? A desktop app…

    2025 · oneaichat.app · its alternatives →

  22. 22
    Mindly▲16

    All your AI models in one chat

    2025 · its alternatives →

  23. 23

    Expert consulting with AI twin

    2024 · pickmybrain.lovable.app · its alternatives →

  24. 24CA

    Current AI chat assistants face a fundamental challenge: context management in long conversations. While current LLM apps use multiple separate conversations to bypass context limits, a truly human-like AI assistant should maintain a single, coherent conversation thread, making efficient context management critical. Although modern LLMs have longer contexts, they still suffer from the long-context problem (e.g. context rot problem) - reasoning ability decreases as context grows longer. Memory-based systems have been invented to alleviate the context rot problem, however, memory-based…

    Nov 2025 · 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 →