Free & Open Source
TranslateBot is 100% free. You only pay for the AI models you choose to use.
TranslateBot
- Unlimited translations
- All AI providers supported
- Smart placeholder preservation
- Dry-run mode
- MPL 2.0 license
AI Model Costs
You pay directly to your chosen AI provider. Here's what to expect.
| Model | Provider | Input / output per 1M tokens | Best for |
|---|---|---|---|
gpt-6-luna |
OpenAI | $0.10 / $0.50 | Best value |
gemini-3.5-flash-lite |
$0.30 / $2.50 | Budget option | |
claude-haiku-4-5 |
Anthropic | $1.00 / $5.00 | Fast & cheap |
claude-sonnet-5 |
Anthropic | $2.00 / $10.00 | Nuanced text |
gpt-6-sol |
OpenAI | $2.00 / $10.00 | Higher quality |
Prices are approximate and subject to change. Check each provider's pricing page for current rates.
Real-World Example
A typical Django app with 500 translatable strings (~10,000 words) costs:
Using gpt-6-luna
Common Questions
Do I need a subscription?
No. TranslateBot is free to use. You only need an API key from your chosen AI provider (OpenAI, Anthropic, Google, etc.).
How do I control costs?
Use --dry-run to preview translations without API calls. TranslateBot only translates empty entries by default, so you won't pay to re-translate existing content.
Which model should I use?
Start with gpt-6-luna for the best balance of quality and cost. Upgrade to claude-sonnet-5 or gpt-6-sol if you need higher quality for marketing content.
Is there a free tier for AI models?
Some providers offer free tiers or credits. Google's Gemini has a generous free tier. OpenAI and Anthropic sometimes offer free credits for new accounts.