Best AI Writing Tools

World's most popular AI assistant — free to use, powered by OpenAI's GPT-5 line, with apps on every platform.

• ✓GPT-5 model line
• ✓Native image generation
• ✓ChatGPT app (iOS, Android, desktop)

Anthropic's Claude AI — Fable 5 & Opus 4.8, 1M-token context, desktop app & Chrome extension, free to start.

• ✓Claude Fable 5 & Opus 4.8 models
• ✓1M-token context window
• ✓Artifacts, Projects & Agent Skills

Google Gemini — multimodal AI assistant with the Gemini 3 model line, image generation, huge context, a free tier, and API access.

• ✓Gemini 3 & 2.5 Pro models
• ✓Image generator + native multimodal (text, image, audio, video)
• ✓1M+ token context window

AI content platform for marketing teams — brand voice training, 50+ templates, free trial, from $39/mo.

• ✓50+ templates
• ✓Brand voice training
• ✓SEO mode

AI copywriting & GTM platform — sales copy, product descriptions, and marketing workflows with a free plan.

• ✓Sales copy templates
• ✓Product descriptions
• ✓Social media posts

AI writing platform with SEO focus and Surfer SEO integration.

• ✓AI Article Writer
• ✓Surfer SEO integration
• ✓Chatsonic chatbot