TextCortex AI

TextCortex is a versatile AI writing assistant that differentiates through customisable AI personas — a feature that allows businesses to define the AI's knowledge base, tone, and brand voice specific to their company context. Rather than a generic AI assistant, TextCortex can be configured to know about your company's products, policies, and communication style.

The ZenoChat AI assistant, TextCortex's conversational interface, provides access to web search, document upload, and the customised persona in a chat format accessible through the browser extension, web app, or desktop client. The breadth of access points — working inside Gmail, LinkedIn, Google Docs, and any website through the extension — reduces the friction of switching to a separate AI application.

The 25+ writing tools cover common tasks including email writing, blog post creation, product descriptions, summarisation, and paraphrasing. The tools are accessible directly from selected text through a popup, similar to Grammarly's interaction model.

The knowledge base feature allows teams to upload company-specific documents — style guides, product documentation, FAQs — that the AI draws from when generating content. This produces more on-brand and accurate outputs than a generic AI for company-specific writing tasks.

At $23.99/month for Starter with unlimited creations, TextCortex is competitively priced and provides a strong feature set. The free plan with 100 creations per month is genuine enough for light evaluation.