Side-by-side comparison · AI Assistants & LLMs
ChatGPT vs Duck.ai vs GPT-6 Astra
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: Anyone who wants quick AI help without an account or a record of what they asked.
Pick it if: Power users and editors who want an AI that can operate their software for them.
ChatGPT scores highest overall, but Duck.ai gives you more for your money. Which one is right comes down to what you value most.
Overview
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| In one line | OpenAI's all-rounder: chat, images, voice, web search and agents in one app. | DuckDuckGo's private AI chat: no account, no stored prompts, free to use. | OpenAI's top model, built to work your computer for you across long, multi-step jobs. |
| Pricing model | Freemium | Freemium | Paid |
| Starting price | $8/mo | $9.99/mo or $99.99/yr | $20/mo |
| Free plan | Yes | Yes | No |
| Works with Claude Code | No | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Overall rating | 4.3Winner | 4.0 | 3.8 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 4.5 | 3.0 |
| FeaturesHow completely it covers the job it's built for, and how well the pieces fit together. | 5.0 | 3.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.0 | 3.5 | 5.0 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 4.5 | 3.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 4.5 | 3.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | No |
| Mobile app | Yes | Yes | Yes |
| Desktop app | Yes | Yes | Yes |
| Browser extension | Yes | Yes | Yes |
| API access | Yes | No | Yes |
| Teams & business | |||
| Team workspace | Yes | No | Yes |
| Enterprise plan or SSO | Yes | No | Yes |
| Connects to other apps | Yes | No | Yes |
| 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 | No | No | No |
| Writes code | Yes | Yes | Yes |
| Runs agents or automations | Yes | No | Yes |
| Learns your brand or style | Yes | No | Yes |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 15/ 17 | 9/ 17 | 14/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Plans | Free Free Trying it out and everyday questions. | FreeOur pick Free Quick private questions with no sign-up. | ChatGPT Plus $20/mo Trying Astra in Codex and ChatGPT Work. |
Go $8/mo Casual users who hit the free limits. | Plus $9.99/mo or $99.99/yr Regular users who also want a VPN. | ChatGPT ProOur pick From $100/mo People who want Astra and Astra Pro everywhere. | |
PlusOur pick $20/mo Anyone using it most days for work. | Pro $19.99/mo or $199.99/yr People who want the top models privately. | ChatGPT Business See website Teams that want Astra Pro with admin controls. | |
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. | ||
Business See website Teams from 2 people up. | |||
| 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: Pro 200 now comes with a smaller allowance than it did before 29 September. | Stay on Free unless you also want a VPN. Plus is good value if you'd pay for a VPN anyway. Pro is $19.99, the same as ChatGPT Plus or Claude Pro, so only pick it if anonymity matters more to you than features. | 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. |
Key features
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Standout features |
|
|
|
Pros and cons
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Pros |
|
|
|
| Cons |
|
|
|
Who each one is for
| Attribute | ChatGPT | Duck.ai | GPT-6 Astra |
|---|---|---|---|
| Best for |
|
|
|
| You'll find it used by |
|
|
|
Questions people ask
Which is better, ChatGPT, Duck.ai or GPT-6 Astra?
ChatGPT scores highest overall in our ratings (ChatGPT 4.3/5, Duck.ai 4.0/5 and GPT-6 Astra 3.8/5). ChatGPT is best for everyday questions and brainstorming and making and editing images in the chat. Duck.ai is best for quick private questions and Using AI without signing up. GPT-6 Astra is best for driving editing software from instructions and long research and build tasks.
Which is cheaper, ChatGPT, Duck.ai or GPT-6 Astra?
ChatGPT: There's a free plan, and paid plans start at $8/mo. Duck.ai: There's a free plan, and paid plans start at $9.99/mo or $99.99/yr. GPT-6 Astra: There's no free plan. Paid plans start at $20/mo.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
Swap in another tool
More tools from AI Assistants & LLMs in the library.
