DOAChatGPT vs Grok: which one to choose?
We compare ChatGPT and Grok on price, devices, difficulty and who each one suits, using the data on their DOA pages.
ChatGPT
OpenAI's general assistant for writing, reasoning, file analysis and coding. The most familiar starting point for almost any AI task.
Grok
SpaceXAI (formerly xAI) assistant with recent X information and a more direct style. Includes Grok Imagine for images and video.
DOA verdict for writing
ChatGPT wins
88.5 ChatGPT · 73.8 Grok / 100
Daily writing, studying and first contact with AI. Very easy to use and versatile.
Why
- DOA score in writing · ChatGPT: 93/100 vs 78/100
- Free version · ChatGPT: 72/100 vs 60/100
- Ease of use: tie
- Devices · ChatGPT: 5 vs 3
Pick Grok if…
Users who want a current, direct assistant. Less corporate tone and strong current awareness.
How we decide: this verdict uses a formula of its own for comparisons, different from the DOA score: DOA score in writing (60%), free version (20%), ease of use (10%) and devices (10%). Data from each tool page, reviewed on 14 October 2026. How we calculate the DOA score and the verdict
| ChatGPT | Grok | |
|---|---|---|
| Devices | Browser · Windows · Mac · Android · iPhone / iPad | Browser · Android · iPhone / iPad |
| Level | Easy | Easy |
| What it is for | Writing Getting work done Research Study Coding | Writing Research Coding Getting work done |
| DOA score | 93/100 | 78/100 |
| Key features |
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On the overall DOA score, ChatGPT gets 93/100 and Grok 78/100. It is an indicative rating: try both on a real task before you pay.
ChatGPT and Grok side by side: plans, models and privacy
Only facts from their official sites, linking each source. If the site doesn't publish something, we say so.
Data checked on 14 October 2026.
| Item | ChatGPT | Grok |
|---|---|---|
| Free plan | Unlimited text chats (with abuse guardrails). Limited uploads, image creation, voice and deep research.source: chatgpt.com (opens in a new tab) | US$0/month with limited AI usage (no figure published).source: x.ai (opens in a new tab) |
| Cheapest paid plan | Go: €8/month. Plus: €23/month (Spain prices on the official page).source: chatgpt.com (opens in a new tab) | Plus: US$8/month, with Grok Chat, Voice, Imagine and Build. Premium: US$30/month, with 4× the Plus usage. Excluding tax.source: x.ai (opens in a new tab) |
| Top plan | Pro: from €103/month in Spain, in three usage tiers. The help centre lists US$ prices: Pro 100, Pro 200 and Pro 500 at US$100, US$200 and US$500/month. Monthly billing only.source: chatgpt.com (opens in a new tab) · help.openai.com (opens in a new tab) | Ultra: US$200/month, with 50× the Plus usage (Super: US$100/month, 15×).source: x.ai (opens in a new tab) |
| Models by plan |
| Premium and above: “the latest Grok models”, with no version named. Free: not stated.source: x.ai (opens in a new tab) |
| Documented features | Codex included (limited on Free and Go). Pro includes Pro models, Codex, deep research, image creation, memory and file uploads.source: chatgpt.com (opens in a new tab) · help.openai.com (opens in a new tab) | Each plan has an AI usage pool shared between Grok (Chat, Voice, Imagine and Bot) and Cursor, refreshed weekly. Premium adds the latest Grok models, images and videos, and cloud agents.source: x.ai (opens in a new tab) |
| Privacy: does it train on your chats? | OpenAI may use your chats to train its models; turn it off in Settings › Data controls (“Improve the model for everyone”). Temporary chats are not used.source: help.openai.com (opens in a new tab) | SpaceXAI may use your chats for training; turn it off in Settings › Data (“Improve the model”). Private Chats are not used.source: x.ai (opens in a new tab) |
| Apps and platforms | Browser · Windows · Mac · Android · iPhone / iPadper the DOA tool page (updated 14 October 2026) | Browser · Android · iPhone / iPadper the DOA tool page (updated 14 October 2026) |
| Best model in the DOA ranking | GPT-6.1 Sol: 92.4/100 · position 3AI models | No model with a DOA ranking in our table |
Key differences
- Free plan: Grok gives limited AI usage, with no figure; ChatGPT, unlimited text chats with abuse guardrails.
- Entry paid plan: Grok Plus, US$8/month excluding tax (one subscription for Grok and X); ChatGPT Go, €8/month, and Plus, €23/month (Spain prices).
- Top plan: Grok Ultra, US$200/month excluding tax; ChatGPT Pro (the most expensive), US$500/month.
- Training: both have a setting to turn it off; Grok private chats and ChatGPT temporary chats are not used.
The DOA model ranking averages two external sources. We show the best-scoring model among those our table places in a plan of each app.
Model quality: DOA model ranking (average of Arena and Epoch AI, no DOA opinion) →
ChatGPT is a better fit for
- Daily writing, studying and first contact with AI
- Teams that want one familiar general assistant
Grok is a better fit for
- Users who want a current, direct assistant
- Public-conversation analysis and code