Classic machine translation turns your text into another language almost word by word. AI models like ChatGPT and DeepSeek understand context, so headlines sound natural, your tone stays consistent and your call to action still sounds like you.
What you need: TranslatePress with at least one extra language, Hybrid AI Translator Pro, and an API key from OpenAI or DeepSeek. You pay the provider directly for what you use, usually a few cents per page.
Step 1: Create your API key
OpenAI: sign in at platform.openai.com, add a small amount of credit under Billing, then create a key under API keys. Copy it somewhere safe; it is shown only once.
DeepSeek: sign in at platform.deepseek.com, top up your balance, then create a key under API keys.
Tip: set a monthly spending limit in your provider dashboard so you are never surprised by a bill.
Step 2: Connect the AI engine
- Upload and activate the Pro plugin under Plugins → Add New → Upload Plugin, then activate your licence in the License tab.
- Go to Settings → Hybrid AI Translator and set the Main engine to the AI provider.
- Pick OpenAI or DeepSeek from the service dropdown. The Base URL and recommended model fill in automatically.
- Paste your API key and click Test. You should see a translated sample sentence.
- Go to Settings → TranslatePress → Automatic Translation, turn it on and select Hybrid AI. Save.
Step 3: Tone, fallback and glossary
Tone and style: the default "Professional" works for most business sites. You can write something like "Friendly and simple, for small business owners". Keep it short: shorter instructions mean fewer tokens and lower cost.
Fallback engine: set Google Translate or DeepL as the fallback. If the AI provider is down, out of credit or rate-limited, the fallback translates instead, so visitors never see an untranslated page.
Glossary: add your company name, product names and technical terms so they are never translated wrongly. You can also import a DeepL-style CSV file.
ChatGPT or DeepSeek: which should you choose?
| ChatGPT (OpenAI) | DeepSeek | |
|---|---|---|
| Quality | Excellent, very consistent tone | Very good, strong in many languages |
| Cost | Low with small models such as gpt-4o-mini | Usually the lowest |
| Best for | Brand-sensitive marketing pages | Large sites on a tight budget |
You can also try Groq (very fast, with a free tier) or OpenRouter (one key for many models). For the numbers, read the TranslatePress AI translation cost comparison.
Troubleshooting
Test fails with an authentication error
The API key is wrong or has no credit. Create a new key and check your balance.
Some pages stay in the original language
Check that Hybrid AI is selected in TranslatePress and automatic translation is on.
A word is translated wrongly everywhere
Use the Edit Translations tab to search and replace it across all saved translations, with preview and undo. Export a backup from Tools first.
Want it set up for you?
I can configure TranslatePress, the AI engine and your glossary on your site.
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