AI Writing Assistants

ChatGPT

OpenAI's general-purpose AI chat with GPT-5, voice, image gen and a free tier most writers can ship with

ChatGPT logo

4.6

Rating

Free

Price

Yes

Free plan

800M+

Users

Key features

Pros & cons

Pros

  • Free tier is genuinely usable for most writers (GPT-5 access with daily caps, no card required)
  • Best-in-class general-purpose conversation and reasoning across writing, code and analysis
  • Advanced Voice Mode with video and screen-sharing is unique at $20/mo on Plus
  • Massive ecosystem: 3M+ Custom GPTs, native iOS/Android/Mac/Windows apps, Zapier and 1000+ integrations
  • Multimodal in one interface: text, image gen (Sora-tier on Pro), file analysis, code interpreter, browsing

Cons

  • No built-in plagiarism checker, no SEO mode, no use-case templates (vs Rytr 40+ or Copy.ai 90+)
  • Free tier rate-limits hit fast on long sessions (drops to a smaller model after ~10 GPT-5 messages in 5 hours)
  • Output is detected as AI by GPTZero and Originality.ai at high rates without manual editing or humanizers
  • No native brand voice training in the writing UX - you have to build a Custom GPT or paste guidelines each session

Plans & pricing

ChatGPT pricing plans
PlanPriceFeatures
FreeFree Forever free, account requiredGPT-5 with limited messages per day, Standard voice mode, Limited image generation and file uploads, Limited memory and Deep Research, Custom GPTs (use only, no creation)
Plus$20/mo $20/mo, no annual discountExtended GPT-5 limits (about 5x Free), Advanced Voice Mode with video and screen-sharing, Custom GPTs creation and sharing, Standard Deep Research and Sora video access, Higher image generation limits and file uploads
Pro$200/mo $200/mo, no annual discount, individual seat onlyNear-unlimited access to GPT-5 and reasoning models, GPT-5 Pro mode with extended compute for harder reasoning, 250 Deep Research runs per month, Priority access to Operator, Codex agent, and Sora, 1M-token context window on supported models
Business$25/mo $25/user/mo billed annually or $30/user/mo monthly, was Team before Aug 2025 renameEverything in Plus per seat with higher limits, Admin console, SSO, SCIM and workspace controls, Connectors to Google Drive, OneDrive, SharePoint, GitHub, Data excluded from training by default, Shared custom GPTs and workspace knowledge

Recommended AI Writing Assistants tools

GravityWrite logo

GravityWrite

All-in-one AI suite bundling writing, image, video, voiceover and social scheduling from $8/mo

4.5/ 5
Read review
RightBlogger logo

RightBlogger

Blog automation suite by Ryan Robinson - connects to your site, runs SEO reports and ships full posts

4.4/ 5
Read review
Rytr logo

Rytr

Affordable AI writing assistant with 40+ use case templates and a generous free plan

4.4/ 5
Read review
WriteHuman logo

WriteHuman

AI humanizer that rewrites GPT and Claude output to bypass GPTZero, Turnitin and Originality.ai

4.3/ 5
Read review
Miriam Alonso

Miriam Alonso researched and verified this page. See our methodology.