Stop using AI as a chatbot.
Run your work on AI.

The most widely used assistant on the market · it now runs on GPT-6 Astra, released 3 September 2026, with real computer use that fills in forms and moves between web pages on its own. The free version runs GPT-5.6 Luna, and the paid one opens up GPT-5.6 Sol and Terra plus the ChatGPT Work agent for long and scheduled tasks.

Anthropic's assistant, now the strongest option for long-form writing and coding work after Fable 5.1 shipped in September 2026. What sets it apart now is not the chat itself but Cowork · an agent that works in the background on reports, sheets and decks without you sitting at the screen, with Claude Code and Claude Design in the same subscription.

Google's assistant, whose strongest card is that it sits inside Gmail, Docs, Drive and YouTube with nothing to install. In 2026 it added Gemini Spark as a personal agent that organizes your local files and runs Workspace workflows, plus Omni for editing by conversation, with Gemini 3.8 Flash released 2 September 2026.

A fiction writing environment built around Story Bible, which holds the characters, worlds and plot lines across a full manuscript. The core model is Muse 1.5, trained with published authors rather than scraped web data · it became the default across all the tools in 2026 · and since February 2026 you can pick external models inside the same editor, including Claude Sonnet 4.6, GPT-5.4 and Gemini 3.1 Pro.

The best known proofreader and writing assistant · it runs inside the browser, Windows, Mac, Google Docs, Word and Outlook directly with no copy and paste. The parent company renamed itself Superhuman on 29 October 2025 and pulled Grammarly, Coda and Mail into one suite with a proactive assistant called Superhuman Go · but the Grammarly product keeps its own name and plans.

An image generator with high artistic quality · the current default version is V8.2, released 24 July 2026, along with a new Edit Model for local edits. Artists and art directors who want a distinctive visual style rather than just a correct image use it, and the web app is now the main interface instead of Discord.