Side-by-side comparison · AI Assistants & LLMs
ChatGPT vs GPT-6 Astra vs Grok
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Anyone who wants one general-purpose assistant that handles most everyday jobs.
Pick it if: Power users and editors who want an AI that can operate their software for them.
Pick it if: People who follow news, trends or public sentiment closely and want an assistant hooked into X.
Overview
| Attribute | ChatGPT | GPT-6 Astra | Grok |
|---|---|---|---|
| In one line | OpenAI's all-rounder: chat, images, voice, web search and agents in one app. | OpenAI's top model, built to work your computer for you across long, multi-step jobs. | Elon Musk's AI assistant, plugged into what people are posting on X right now. |
| Pricing model | Freemium | Paid | Freemium |
| Starting price | $8/mo | $20/mo | $8/mo |
| Free plan | Yes | No | Yes |
| Works with Claude Code | No | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | ChatGPT | GPT-6 Astra | Grok |
|---|---|---|---|
| Overall rating | 4.3Winner | 3.8 | 3.7 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 3.0 | 4.0 |
| FeaturesHow completely it covers the job it's built for, and how well the pieces fit together. | 5.0 | 4.5 | 4.0 |
| Output qualityHow good the results are before you fix them. | 4.0 | 5.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 3.0 | 3.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 3.5 | 4.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | ChatGPT | GPT-6 Astra | Grok |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | No | Yes |
| Mobile app | Yes | Yes | Yes |
| Desktop app | Yes | Yes | No |
| Browser extension | Yes | Yes | No |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | No |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | Yes | Yes |
| Makes images | Yes | Yes | Yes |
| Makes video | Yes | No | Yes |
| Writes code | Yes | Yes | Yes |
| Runs agents or automations | Yes | Yes | Yes |
| Learns your brand or style | Yes | Yes | No |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 16/ 17 | 14/ 17 | 12/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | ChatGPT | GPT-6 Astra | Grok |
|---|---|---|---|
| Plans | Free Free Trying it out and everyday questions. | ChatGPT Plus $20/mo Trying Astra in Codex and ChatGPT Work. | Free Free Trying it and occasional questions. |
Go $8/mo Casual users who hit the free limits. | ChatGPT ProOur pick From $100/mo People who want Astra and Astra Pro everywhere. | Plus $8/mo X users who want a bit of Grok on the side. | |
PlusOur pick $20/mo Anyone using it most days for work. | ChatGPT Business See website Teams that want Astra Pro with admin controls. | PremiumOur pick $30/mo Anyone who uses Grok most days. | |
Pro From $100/mo Heavy users and people living in Codex. | API $10 per million input tokens, $50 per million output Developers building Astra into their own software. | Super $100/mo Heavy users who want priority at busy times. | |
Business See website Teams from 2 people up. | Ultra $200/mo Power users running agents all day. | ||
Teams From $30/user/mo Businesses that want pooled usage and admin controls. | |||
| Which plan to pick | The free plan is now good enough to use properly, so stay on it until the image, voice or research limits annoy you. Plus is the sensible upgrade. Only look at Pro if you run Codex or deep research all day, and read the current tier details first because they keep changing. | Don't buy a plan for Astra alone. If you're on Plus, try it in Codex first. Move to Pro only if you've got real computer-use or long agent jobs for it, and start on the $100 tier. For most writing and research, GPT-6.1 Sol or the standard models are faster and good enough. | If you already pay for X Premium, you now get Grok in the same subscription, so start there. Premium at $30 is the real Grok plan. The $100 and $200 tiers are only worth it if you're generating video or running agents constantly. |
Key features
| Attribute | ChatGPT | GPT-6 Astra | Grok |
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Pros and cons
| Attribute | ChatGPT | GPT-6 Astra | Grok |
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Who each one is for
| Attribute | ChatGPT | GPT-6 Astra | Grok |
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Questions people ask
Which is better, ChatGPT, GPT-6 Astra or Grok?
ChatGPT scores highest overall in our ratings (ChatGPT 4.3/5, GPT-6 Astra 3.8/5 and Grok 3.7/5). ChatGPT is best for everyday questions and brainstorming and making and editing images in the chat. GPT-6 Astra is best for driving editing software from instructions and long research and build tasks. Grok is best for tracking what's trending right now and gauging how people are reacting to news.
Which is cheaper, ChatGPT, GPT-6 Astra or Grok?
ChatGPT: There's a free plan, and paid plans start at $8/mo. GPT-6 Astra: There's no free plan. Paid plans start at $20/mo. Grok: There's a free plan, and paid plans start at $8/mo.
Which is easier to use, ChatGPT, GPT-6 Astra or Grok?
ChatGPT rates highest for ease of use in our scores. Anyone who wants one general-purpose assistant that handles most everyday jobs.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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