
Compare GPT-5, Claude 4.5, Gemini 3 side by side in one app
By Tanmay Verma, Founder · Last verified 03 Jul 2026
In short
ChatHub — Compare GPT-5, Claude 4.5, Gemini 3 side by side in one app. Best for AI researchers comparing model outputs for accuracy, Content creators generating diverse responses from multiple AIs, Developers testing prompts across different models. Free to start; paid plans from $20/mo.
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ChatHub delivers on its promise of one interface, one subscription, and multiple AIs. The side-by-side comparison is genuinely useful for fact-checking and model selection, though the free tier is limited. Worth it for anyone who regularly needs to cross-reference AI outputs.
Compare with: ChatHub vs Arena AI, ChatHub vs Writingmate, ChatHub vs Anakin.ai
Last verified: July 2026
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
24 mentions across 4 sources (Hacker News, App Store, GitHub, Lemmy).
How likely is ChatHub to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →ChatHub is a desktop and web application that lets you use multiple AI chatbots simultaneously in a single interface. It supports GPT-5, Claude 4.5, Gemini 3, Llama 3.3, and over 20 other models, allowing you to compare responses side-by-side to reduce hallucinations and choose the best answer. Designed for researchers, developers, content creators, and AI enthusiasts, ChatHub streamlines cross-verification and model exploration. Key features include multi-model chat, AI image generation with Nano Banana, FLUX.2, and Stable Diffusion, file upload and analysis for PDFs and spreadsheets, web search integration, code preview with syntax highlighting, a prompt library, and translation/summarization tools. The app is available as a web app, Chrome extension, iOS/Android mobile apps, and Windows/macOS desktop clients. ChatHub's single subscription model gives you access to all supported AI models without separate accounts, simplifying cost and management. With over 300,000 users, it's a practical tool for anyone who wants to stay model-agnostic and compare outputs transparently. Compared to alternatives like Poe or TypingMind, ChatHub emphasizes side-by-side comparison and a unified subscription, making it straightforward for both casual and power users.
ChatHub fills a real need: managing multiple AI subscriptions is annoying and expensive. One subscription for GPT-5, Claude 4.5, Gemini 3, and 20+ others is compelling. The side-by-side comparison is the killer feature - you see exactly where models diverge, which builds confidence or flags hallucinations. Where it shines: researchers comparing reasoning, content creators generating variations, developers testing prompts, or anyone who wants to pick the best model for each query. File upload and image generation add versatility. The free tier exists but is limited - expect to hit usage caps quickly if you're a heavy user. The privacy model isn't on-premise; data goes through their servers, which matters for sensitive work. No API access means you can't integrate it into your own workflows. Compared to Poe, ChatHub feels more focused on comparison. Poe offers a broader catalog but ChatHub's side-by-side layout is cleaner. TypingMind gives more control over individual model settings, but lacks the comparison view. For the price (paid tier), it's a solid value if you'd otherwise pay for multiple subscriptions. One caveat: model availability depends on third-party APIs, so if a model goes down, you're stuck. But for day-to-day multi-model chatting, ChatHub is a time-saver.
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