Side-by-side comparison · AI Assistants & LLMs
DeepSeek vs Duck.ai vs Google Gemini
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 a strong reasoning assistant for free, and developers watching their API costs.
Pick it if: Anyone who wants quick AI help without an account or a record of what they asked.
Pick it if: People whose work already runs on Gmail, Google Workspace or an Android phone.
Google Gemini scores highest overall, but DeepSeek gives you more for your money. Which one is right comes down to what you value most.
Overview
| Attribute | DeepSeek | Duck.ai | Google Gemini |
|---|---|---|---|
| In one line | A free Chinese assistant that's strong at maths, logic and code. | DuckDuckGo's private AI chat: no account, no stored prompts, free to use. | Google's assistant, built into Gmail, Docs, Drive and Android phones. |
| Pricing model | Free | Freemium | Freemium |
| Starting price | Pay per use | $9.99/mo or $99.99/yr | US$4.99/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | DeepSeek | Duck.ai | Google Gemini |
|---|---|---|---|
| Overall rating | 3.8 | 4.0 | 4.2Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 3.5 | 4.5 | 4.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 3.0 | 3.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.0 | 3.5 | 4.0 |
| Value for moneyWhat you get for the price, including the free plan. | 5.0 | 4.5 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 4.5 | 4.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | DeepSeek | Duck.ai | Google Gemini |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | Yes | Yes |
| Desktop app | No | Yes | Yes |
| Browser extension | No | Yes | Yes |
| API access | Yes | No | Yes |
| Teams & business | |||
| Team workspace | No | No | Yes |
| Enterprise plan or SSO | No | No | Yes |
| Connects to other apps | No | No | Yes |
| Open source or self-hosted | Yes | No | No |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | Yes | Yes |
| Makes images | No | Yes | Yes |
| Makes video | No | No | Yes |
| Writes code | Yes | Yes | Yes |
| Runs agents or automations | No | No | Yes |
| Learns your brand or style | No | No | Yes |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 8/ 17 | 9/ 17 | 16/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | DeepSeek | Duck.ai | Google Gemini |
|---|---|---|---|
| Plans | Chat appOur pick Free Anyone who wants a capable reasoning assistant at no cost. | FreeOur pick Free Quick private questions with no sign-up. | Free Free Light use and seeing how it feels. |
API (deepseek-flash) Pay per use, from $0.15 per million input tokens Developers building cheap features into their own apps. | Plus $9.99/mo or $99.99/yr Regular users who also want a VPN. | Google AI Plus US$4.99/mo Casual users who want Gemini in Gmail and more storage. | |
API (deepseek-v4-pro) Pay per use, from $0.66 per million input tokens Developers who want the stronger model. | Pro $19.99/mo or $199.99/yr People who want the top models privately. | Google AI ProOur pick US$19.99/mo Anyone who works in Google Workspace every day. | |
Google AI Ultra From US$99.99/mo Heavy creative and agent users. | |||
| Which plan to pick | The app is free, so the only decision is whether the privacy trade-off is acceptable for what you're asking. If you need the model inside your own software, have a developer use the API or run the open model through a provider that keeps your data in Australia. | 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. | Skip the free plan for anything serious now that it's Flash-Lite only. AI Pro (US$19.99, or A$32.99 in Australia) is the one to buy: it's the cheapest way to get Gemini 4 Argon plus Gemini in Docs and Gmail, and the 5 TB of storage offsets a Google One bill. Ultra is for people generating video all day. |
Key features
| Attribute | DeepSeek | Duck.ai | Google Gemini |
|---|---|---|---|
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Pros and cons
| Attribute | DeepSeek | Duck.ai | Google Gemini |
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Who each one is for
| Attribute | DeepSeek | Duck.ai | Google Gemini |
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Questions people ask
Which is better, DeepSeek, Duck.ai or Google Gemini?
Google Gemini scores highest overall in our ratings (DeepSeek 3.8/5, Duck.ai 4.0/5 and Google Gemini 4.2/5). DeepSeek is best for Maths, logic and step-by-step problems and coding help. Duck.ai is best for quick private questions and Using AI without signing up. Google Gemini is best for searching and summarising your Gmail and drafting in Google Docs.
Which is cheaper, DeepSeek, Duck.ai or Google Gemini?
DeepSeek: There's a free plan, and paid plans start at Pay per use. Duck.ai: There's a free plan, and paid plans start at $9.99/mo or $99.99/yr. Google Gemini: There's a free plan, and paid plans start at US$4.99/mo.
Which is easier to use, DeepSeek, Duck.ai or Google Gemini?
Duck.ai rates highest for ease of use in our scores. Anyone who wants quick AI help without an account or a record of what they asked.
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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