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Copy.ai
Copy.ai launched in 2020, among the earliest consumer-facing products built directly on top of OpenAI's GPT-3 language model when API access to that technology was still a novel, unfamiliar capability most businesses hadn't yet found practical applications for. The company built its early product specifically around short-form marketing copy — social media captions, product descriptions, and ad variations — giving small business owners and solo marketers without a dedicated copywriting team a way to generate usable draft copy in seconds rather than starting from a blank page. Copy.ai has since expanded from a single-purpose copywriting tool into a broader "go-to-market" platform aimed at sales and marketing teams specifically, incorporating workflow automation features that chain together multiple AI-generated steps rather than producing one-off pieces of text in isolation. Copy.ai's combination of being among the very first mainstream GPT-3-powered consumer products and its subsequent evolution into a broader marketing workflow tool has made it one of the more established names in AI-assisted business writing, predating ChatGPT's own 2022 debut by more than two years.
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Grammarly
Grammarly launched in 2009, years before the current wave of generative AI, originally built around automated grammar and spell-checking technology that plugged directly into web browsers and word processors to catch writing errors in real time as users typed. The company has steadily layered generative AI features on top of that original grammar-checking foundation over the past several years, adding tone adjustment, full-sentence rewriting suggestions, and AI-generated drafting tools that go well beyond the product's original error-correction scope. Grammarly's browser extension and desktop app integrate directly into the writing surfaces people already use — email clients, Google Docs, Slack, and social media — rather than requiring users to copy text into a separate chatbot window, giving it a genuinely different, more ambient usage pattern than most competing AI writing tools. Grammarly's combination of over a decade of established grammar-checking credibility and its deep, ambient integration across users' existing writing tools has made it one of the most widely installed AI writing products in the world, even among users who don't think of it primarily as an "AI tool" at all.
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