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ChatGPT vs Grok

Compare ChatGPT and Grok on pricing, free tier, open source, API, self-host, verdict and momentum.

Both are productivity tools. ChatGPT is freemium (free tier; Go $8/mo, Plus $20/mo and Pro from $100/mo) with a free tier; Grok is freemium (free tier on grok.com; paid SuperGrok upgrades sold in-app (official public $ card is not a stable HTML page — confirm at checkout)) with a free tier. The catalog stamp is ship for ChatGPT and situational for Grok, last verified 2026-09-01 and 2026-08-19 respectively.

ChatGPT

ship

The general-purpose AI assistant that set the category baseline.

Grok

situational

xAI's consumer assistant on grok.com — chat, search, Imagine; not the xAI API and not in-X Grok.

fieldChatGPTGrok
pricingfreemium · free tier; Go $8/mo, Plus $20/mo, Pro from $100/mofreemium · free tier on grok.com; paid SuperGrok upgrades sold in-app (official public $ card is not a stable HTML page — confirm at checkout)
free tieryesyes
open sourcenono
apinono
self-hostnono
verdictshipsituational
momentumSteady momentumsteadyBlueshift — gaining momentumblueshift
last verified2026-09-012026-08-19
key limitationUsage caps on Plus frustrate heavy users mid-task.No stable public HTML price table fetched (x.ai/grok 403); treat in-app SuperGrok as authoritative.

The call

Pick ChatGPT — we ship it; Grok is situational for us.

Pick Grok for users who want xAI models without building against the API.

ChatGPT sources

  1. 1chatgpt.com/pricing
  2. 2help.openai.com/en/articles/11369540
  3. 3platform.openai.com/docs/models

Grok sources

  1. 1grok.com
  2. 2docs.x.ai

Open live compare →ChatGPT pageGrok pageChatGPT.jsonGrok.json