ChatGPT Brainstorming, outlining, critique and a custom GPT loaded with your style sheet. Free, Go, Plus and Pro plans (dollar amounts not shown on the page at check)
Claude Long-manuscript critique and developmental feedback. Free $0; Pro $17/mo annual ($200/yr) or $20 monthly; Max from $100/mo
Gemini Writers who live in Google Docs and Drive. Free $0; $4.99/mo; AI Pro $19.99/mo; Ultra from $99.99/mo
Grok Brainstorming, real-time trend research for marketing. Free $0; Plus $8/mo; Premium $30/mo; Super $100/mo; Ultra $200/mo (taxes extra)
Microsoft Copilot Writers who draft in Word. Via Microsoft 365: Personal $9.99/mo; Family $12.99/mo; Premium $19.99/mo