Lumo AI is the only mainstream AI assistant built so that even the company running it cannot read your chats. It comes from Proton, the Swiss maker of Proton Mail and Proton VPN, and it wraps every conversation in zero-access encryption with a strict no-logs policy. Nothing you type is stored in a readable form, […]
Yes, NotebookLM is free. The Standard tier costs $0/month with any Google account, no trial, no credit card and no time limit, and every core feature is included. You get 100 notebooks, 50 sources per notebook and 50 chat queries a day, plus Audio Overviews, Video Overviews, Deep Research and study tools. You only pay […]
Claude Opus 5 is here. Anthropic released its newest flagship model on July 24, 2026, and the headline is hard to ignore: it delivers close to Claude Fable 5 intelligence at Opus speed and cost, for roughly half the price of Fable 5. At $5 per million input tokens and $25 per million output tokens, […]
Kimi is free to start, and that is the fastest way to summarise Moonshot AI’s pricing. The Kimi app gives you unlimited basic chat, file uploads and web search on a $0 Adagio plan, while paid memberships climb from $19 a month to $199 a month for heavy agent and coding use. If you build […]
Yes, Google Gemini is free to use. The free plan costs $0 with no credit card, and it is not a stripped-back demo. Google’s plans page now lists the free tier as access to Gemini 3.6 Flash, the model it shipped on July 21, 2026, plus varying access to the stronger Gemini 3.1 Pro, image […]
xAI now sells Grok across six consumer tiers plus a separate developer API, and the price spread between them is huge. The free tier costs $0, X Premium is $8 per month, SuperGrok Lite is $10 per month, SuperGrok is $30 per month, X Premium+ is $40 per month, and SuperGrok Heavy sits at the […]
Yes, ChatGPT is free. Anyone can use it at no cost on the web and in the iPhone and Android apps, and the free plan is permanent rather than a short trial. As of 2026 the free tier runs on GPT-5.5 Instant, OpenAI’s fast everyday model, with a cap of roughly 10 messages every 5 […]
Yes, Perplexity AI is free. You can use it at perplexity.ai with no credit card and no account needed for basic searches, and Perplexity runs a permanent free tier rather than a short trial. The free plan gives you unlimited quick searches with real source citations, which already puts it ahead of a plain chatbot. […]
Genspark AI pricing runs across three core plans: a Free tier at $0, a Plus plan at $24.99 per month, and a Pro plan at $249.99 per month, with annual billing cutting both paid tiers by roughly 20%. Every plan runs on a credit system, so the real question is not just the sticker price […]
Mistral AI pricing runs on two separate tracks, and the headline number is hard to beat. The Le Chat consumer app starts at $0/month and tops out at $14.99/month for Pro, while the developer API charges per million tokens, starting around $0.10. That makes Mistral one of the cheapest ways to reach a frontier model […]
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