10 Best Grammarly AI Alternatives in 2026

AI21 Labs

Wordtune, from AI21 Labs, focuses on rewriting and refining your own sentences rather than generating content from scratch. It offers rephrasing, tone shifts, shortening, expanding and summarisation in a lightweight browser extension. It suits writers who want to keep their voice while polishing clarity and flow.

Notion

Notion AI embeds writing, summarising and Q&A directly inside the Notion workspace millions already use for notes, docs and wikis. It can draft content, summarise pages, extract action items and answer questions across your connected knowledge. The value lies in AI that understands the context of your existing workspace.

Jasper

Jasper is an enterprise marketing-copy platform built to keep AI output on-brand at scale. It offers brand voice training, campaign workflows, templates and team collaboration tailored to marketing teams. Jasper sits above generic chatbots by focusing squarely on marketing operations and brand consistency.

Copy.ai

Copy.ai has evolved from a copywriting tool into a go-to-market AI platform that automates sales and marketing workflows. It chains prompts and data sources into repeatable workflows for outbound, content and research. Teams use it to operationalise AI across their revenue functions, not just to draft individual pieces.

Anthropic

Claude is Anthropic's family of AI assistants, known for long-context reasoning, careful writing and strong coding ability. The Opus, Sonnet and Haiku tiers let you trade off intelligence, speed and cost. Claude excels at nuanced analysis, document understanding and agentic coding workflows, and is a favourite among developers and writers who value clarity.

OpenAI

ChatGPT is OpenAI's flagship conversational AI, powering hundreds of millions of weekly users across web, mobile and API. Built on the GPT-4o and GPT-5 family of models, it handles text, images, voice and code in a single interface. With browsing, data analysis, custom GPTs and a vast plugin ecosystem, it remains the default assistant for most knowledge workers.

Google DeepMind

Gemini is Google's natively multimodal model family, deeply integrated across Search, Workspace, Android and the Pixel line. Its standout feature is an enormous context window of up to one to two million tokens, ideal for analysing long videos, codebases and document sets. Gemini blends Google's real-time knowledge with strong reasoning and is available free in many products.

Perplexity AI

Perplexity is an AI answer engine that combines live web search with large language models to deliver cited, up-to-date answers. Instead of a blank chat, it returns sourced summaries with follow-up questions, making it a popular replacement for traditional search. Pro mode taps frontier models and deeper research, and its API exposes the same search-grounded answers.

xAI

Grok is xAI's assistant, tightly integrated with the X platform and trained with a distinctively candid, witty persona. It has real-time access to X posts, giving it an edge on breaking news and live sentiment. Grok offers strong reasoning, image generation and a less filtered conversational style than most competitors.

Canva

Canva AI bundles image generation, Magic Edit, background removal and AI copywriting into the popular Canva design platform. It is built for non-designers who want to go from idea to finished social post, presentation or flyer fast. The Magic Studio suite makes AI a natural extension of Canva's drag-and-drop workflow.