Mistral Le Chat (now branded Mistral Vibe) is Mistral AI's conversational assistant and answer engine, built by the Paris-based Mistral AI, that combines the company's own models with real-time web search to deliver evidence-based, cited answers. It runs on a freemium model with a genuine free tier, and the Pro plan starts at $14.99 per month for long-running tasks and all-day coding access.
Who builds it
Le Chat is developed by Mistral AI, a Paris, France-based AI lab. By default, user data is hosted in the European Union, with an optional US API endpoint for those who explicitly choose to route data there instead.
What it does
Le Chat combines the pre-trained knowledge of Mistral's own models with recent information balanced across web search, journalism, and other sources, producing well-reasoned, evidence-based answers with detailed citations. For most tasks it defaults to Mistral Large; Mistral Medium 3.5 is used for coding, and Mistral Small for cost-sensitive workloads. Mistral Large 3 runs on a 256,000-token context window and is released as an open-weight model under the Apache 2.0 license, alongside API pricing of $0.50 per 1M input tokens and $1.50 per 1M output tokens.
Core features
- Freemium pricing: a genuine free tier, with Pro starting at $14.99/month and Team at $24.99/user/month
- Real-time web search with inline, detailed citations for evidence-based answers
- Underlying models: Mistral Large, Mistral Medium 3.5 (coding), and Mistral Small (cost-sensitive tasks)
- Mistral Large 3 is released open-weight under the Apache 2.0 license
- 256,000-token context window; API priced at $0.50/1M input and $1.50/1M output tokens
- EU data hosting by default, with an optional US API endpoint
- SOC 2 Type II and ISO 27001/27701 compliance
- Users can opt out of having their data used for model training on Free, Pro, and Team plans
Who it's for
Le Chat suits individuals and teams who want a European-hosted alternative to US-based assistants, along with developers who want an open-weight model family they can also self-host or fine-tune. The free tier covers everyday use with limited messages and web searches; Pro removes those limits for long-running tasks and coding, and Team adds a secure collaborative workspace for organizations building with AI together.
Data and compliance
By default, Mistral hosts Le Chat user data in the European Union; users can explicitly opt into a US API endpoint if they need data processed there instead. Mistral states compliance with both SOC 2 Type II and ISO 27001/27701 frameworks, and its plan comparison shows an opt-out control for model training available across the Free, Pro, and Team tiers — so data isn't used to train Mistral's models unless a user leaves that setting on its default.