What is HHG for TranslatePress?
If you run a multilingual WordPress site, you probably know TranslatePress — it’s one of the best translation plugins out there. But its built-in Google Translate engine? Kinda meh. Limited models, no flexibility, and you’re stuck with whatever Google gives you.
HHG for TranslatePress plugs that gap. It adds four powerhouse AI translation engines right into the TranslatePress settings panel, looking and feeling like they were always there.
What engines do you get?
- Google Gemini — Flash-Lite for cheap & fast, Flash for balanced, Pro for top quality. Pick your trade-off.
- OpenAI Compatible Platform — This is the big one. It supports seven providers through ONE interface: OpenAI, Azure, Groq, Together AI, OpenRouter, Ollama (local), and custom endpoints. Whatever API key you have, it works.
- DeepSeek — V4 Flash (fast & cheap) or V4 Pro (highest quality). Ridiculously affordable for the quality you get.
- ZhiPu GLM — Their agent-based translation engine with multiple strategies (general, paraphrase, chain-of-thought, etc.).
Why I built this
I was translating a pretty large WooCommerce store — thousands of product strings, checkout labels, cart notices. Google Translate’s API was fine, but the translations felt stiff. I wanted to try Gemini, then DeepSeek, then switch between them depending on the page. TranslatePress didn’t let me do any of that.
So I built a drop-in replacement that does. The settings panel looks native, you pick your engine, paste your key, and it just works.
Things I think you’ll like
- Industry context — tell the AI your site is “medical equipment” or “gaming hardware,” and all translations across every engine will use the right terminology.
- Multi-layered context — the plugin feeds the AI three layers of context: your industry domain, the page topic, and the surrounding strings. Translations are consistent because the AI actually knows what it’s looking at.
- Smart batching — short buttons get merged, long paragraphs go solo, everything fires in parallel. It’s fast without burning extra API calls.
- Chunk caching + instant retry — if the AI misses a string, the plugin retries just that one immediately. No half-translated pages.
- All four engines in one dropdown — switch engines on the fly. Different languages can use different engines. Experiment and find what works best for your content.
Getting started
- Install TranslatePress first (you need it — this is an add-on)
- Install HHG for TranslatePress from the WordPress repo
- Go to Settings → TranslatePress → Automatic Translation tab
- Enable one of the HHG engines, paste your API key, hit Save
- That’s it. Translate like you normally would in TranslatePress.
Is it free?
The plugin is 100% free and open source. No premium version, no locked features, no “pro” upsells. You just bring your own API keys from whichever provider you want to use. Most of them have generous free tiers (Gemini Flash-Lite is practically free, Groq has a free tier, DeepSeek is dirt cheap).
If it saves you time or makes your site better, buy me a coffee ☕ — but that’s entirely optional.
Something broken?
Open an issue on the WordPress support forum. I actually check those and fix things. Be specific about which engine, model, and language pair you’re using — makes it way easier to reproduce.