Best AI Writing Tools in 2026

Alibaba's Qwen LLM family: free Qwen Studio chat, Apache open weights (Qwen3.6), and Model Studio APIs with Turbo/Plus/Max pricing and Coding Plan.

Budget AI writing assistant: 40+ use cases, 5 custom tones on Premium, Copyscape checks, Chrome extension. Free 10K chars; Unlimited ~$7.50/mo annual; Premium ~$24/mo.

AI writing assistant across apps: Free $0 (100 AI prompts); Pro $12/mo annual or $30 monthly (2,000 prompts, rewrites, plagiarism); Enterprise with Superhuman Go.

Storytelling writing assistant: 25+ craft reports, Scrivener/Word, Chapter Critique. Free 500 words; Premium $30/mo or $120/yr; Pro $36/$144; Story Credits for full MSS.

Google’s multimodal AI assistant and model family: free Gemini app, Google AI Plus/Pro/Ultra plans, and pay-as-you-go Developer API for chat, research, coding, and media.

AI answer engine with live web citations, Deep Research, multi-model Pro/Max, Computer agents, Comet browser, and Sonar/Search/Agent APIs.

DeepSeek V4: free chat, OpenAI-compatible API, MIT open weights. V4-Flash & V4-Pro with 1M context, thinking modes, and aggressive cache pricing.

OpenAI’s AI assistant for chat, research, coding (Codex), images, and agents—Free, Go ($8), Plus ($20), Pro ($100/$200), Business, and Enterprise plans.

Anthropic's AI assistant for chat, coding, research, and agents. Free, Pro ($20), Max ($100–$200), Team, Enterprise, plus Claude API.

GTM AI platform for sales and marketing: Workflows, Chat, Infobase, Brand Voice, and Agents. Chat from $24/mo annual; Growth workflows from $1,000/mo.

AI marketing platform with Brand Voice, 100+ agents, Canvas, Grid, and GEO tools. Pro from $59/seat/mo annual; Business custom. SOC 2, team governance.

AI Search Growth Engine for GEO/AEO visibility plus SEO content. Track brands across ChatGPT, Gemini, Google AI Overviews (and 10 platforms on Enterprise). Plans from $79/mo annual.