Mammouth AI is a subscription from a French startup that combines GPT, Claude, Gemini, Grok, Mistral, DeepSeek and Kimi in a single chat, starting at 12 euros a month with VAT included, though usage limits are measured in multiples of a base quota the company doesn't publish. The service works as an interface on top of the labs' APIs, letting users type a prompt, pick a model from a menu and rerun the same question on another model with one click (reprompting). It also offers Projects, voice chat, web search powered by Perplexity and an OpenAI-compatible API, with a catalog covering images and video. Mammouth AI costs 12 euros a month on the Starter plan, 24 on Standard and 72 on Expert, all VAT included according to the pricing page checked on November 5, 2026. Standard doubles the price and triples the usage, while Expert multiplies the price by six for ten times the usage. A Team plan offers an admin console, administrator-managed licenses, a single invoice and shared Projects, with the per-user price the same as individual plans; above 100 licenses customers move to Enterprise with SSO and bank transfer payment by quote. Every plan gets the same catalog, which shifts as the labs ship new releases.