Best AI Writing Tools

General-purpose AI assistant by OpenAI

ChatGPT is OpenAI's conversational AI assistant, capable of writing, analysis, coding, and research. The free tier uses GPT-4o mini, while Plus subscribers get access to GPT-4o and advanced features like image generation, file analysis, and custom GPTs.

AI assistant by Anthropic, built for safety and helpfulness

Claude is Anthropic's AI assistant known for nuanced reasoning, long-context understanding (up to 200K tokens), and careful, well-structured outputs. Popular for writing, analysis, and coding tasks where accuracy and thoughtfulness matter.

AI marketing platform for enterprise content teams

Jasper is an AI content platform designed for marketing teams. It offers brand voice training, campaign workflows, and team collaboration features. Used primarily by enterprise marketing teams for generating on-brand content at scale.

AI copywriting platform for marketing teams

Copy.ai generates marketing copy, email sequences, blog outlines, and social posts using AI. It includes 90+ templates and workflow automation features for teams that need to produce high volumes of copy quickly.

AI writing tool with SEO-optimized content generation

Writesonic generates SEO-optimized blog posts, landing pages, and ad copy. It integrates with Surfer SEO for real-time optimization and includes a Chatsonic chatbot powered by GPT-4 with web search capabilities.

AI writing assistant for grammar, clarity, and tone

Grammarly is an AI-powered writing assistant that checks grammar, spelling, punctuation, clarity, and tone in real time. Its browser extension and integrations work across email, Google Docs, Word, and most web text editors.

AI rewriting tool that improves sentence-level writing

Wordtune helps writers rephrase, shorten, expand, and improve individual sentences in real time. It focuses on helping you express your ideas more clearly rather than generating content from scratch.