WritingMate.ai

Browser-side AI copilot that drops GPT-4 and Claude into Gmail, LinkedIn, and any web text field.

Freemium· Free tier with paid premium upgradeWritingMulti-model (GPT-4, GPT-3.5, Claude)

Best for

Pick WritingMate.ai if you want a free, browser-resident copilot that calls GPT-4 or Claude directly inside Gmail and LinkedIn.

Skip if

Skip it if you need API access, team workspaces, or a more mature ecosystem like Merlin or Monica.

WritingMate.ai is a Chrome extension from Ava Labs that wires multiple frontier LLMs (GPT-4, GPT-3.5, and Claude) into the websites you already use. It surfaces a one-click writing helper that can compose Gmail replies, draft LinkedIn posts, rewrite or summarize selected text, translate across 54 languages, and brainstorm in-context wherever you can type.

The pitch is convenience and breadth rather than depth: instead of jumping to ChatGPT in a separate tab, you trigger the same models inline. It sits in the crowded category of browser AI copilots alongside Merlin, Sider, and Monica, and competes mostly on a permanent free tier with an optional paid upgrade. With 10,000+ installs and a 4.4 rating from 269 reviews it is a mid-tier player rather than a category leader.

There is no public API, no self-host option, and no agentic workflow layer; the value sits entirely in the convenience of having a multi-model prompt box one keystroke away inside the browser. Privacy is self-attested ("no data sold to third parties") rather than independently audited.

Editor's take

A serviceable mid-tier entrant in the browser-AI-copilot bracket. The multi-model toggle and forever-free tier are the real hooks, but it lacks the polish, install base, and ecosystem of the category leaders. Fine as a free fallback, not a daily driver for power users.

— The AI Tool Bible editorial team