> ## Documentation Index > Fetch the complete documentation index at: https://docs.rockapi.ai/llms.txt > Use this file to discover all available pages before exploring further. # AI Translate character pricing: from $0.15 per million characters > Compare AI Translate character-based plans with Google Cloud Translation NMT pricing, calculate effective cost, and evaluate quality before production use. # AI Translate character pricing: from \$0.15 per million characters Translation costs grow with every product description, support message, article, and target language. AI Translate uses character-based plans, so teams can forecast that cost from the amount of source text they process instead of estimating tokens. The current Rock API marketplace plans work out to **$0.60, $0.30, or $0.15 per million included characters**, depending on monthly volume. The lowest unit rate is available on the Max plan. For comparison, Google Cloud lists Neural Machine Translation (NMT) at **$20 per million characters** after its first 500,000 free characters and up to one billion characters per month. Prices and plan limits on this page were checked on August 26, 2026. Review the [AI Translate listing](https://rockapi.ai/api-market/2) and [Google Cloud Translation pricing](https://cloud.google.com/products/translate/pricing) before making a purchase decision. ## What character-based billing means Each Unicode character counts as one billing unit, regardless of how many bytes it uses in UTF-8. This makes multilingual cost estimates easier to explain: | Input | Billing quantity | | ------- | ---------------: | | `你好` | 2 characters | | `Hello` | 5 characters | | `こんにちは` | 5 characters | | `안녕하세요` | 5 characters | When the same source text is translated into multiple target languages, include every target-language operation in your forecast. Also measure the exact request behavior with a small test batch before committing production traffic. ## Current AI Translate plans The marketplace currently lists these monthly character allowances: | Plan | Monthly price | Included characters | Effective price per 1M included characters | | ----- | ------------: | ------------------: | -----------------------------------------: | | Basic | \$0 | 1,000 | Free evaluation allowance | | Pro | \$12 | 20 million | \$0.60 | | Plus | \$60 | 200 million | \$0.30 | | Max | \$300 | 2 billion | \$0.15 | The headline **\$0.15 per million characters** is therefore the Max plan's effective rate when its included capacity is used. Choose a plan from expected monthly volume, not only from the lowest unit price. ## AI Translate vs Google Cloud Translation pricing Google Cloud's public NMT price is \$20 per million characters after the first 500,000 characters each month. Google advises customers processing more than one billion characters per month to contact sales, so negotiated high-volume pricing is not included below. | Monthly source volume | AI Translate plan | AI Translate price | Google Cloud NMT public-price estimate\* | | ---------------------- | ----------------- | -----------------: | ---------------------------------------: | | 20 million characters | Pro | \$12 | \$390 | | 200 million characters | Plus | \$60 | \$3,990 | \*The Google estimates apply the first 500,000 free characters, then \$20 per million characters. They exclude taxes, currency conversion, negotiated discounts, and feature differences. At the listed unit rates, AI Translate ranges from about **33 times to 133 times lower per million included characters**. The comparison is useful for budgeting, but it is not a complete product comparison: support, quotas, contracts, regional requirements, and advanced translation features can affect the final choice. ## What you get beyond the unit price The AI Translate listing describes the service as using Google AI and delivering the same translation quality as Google Translate. Treat that as a product claim to validate with your own content rather than an independent quality benchmark. The listing also includes: * Support for more than 249 languages. * Batch translation for text and HTML. * Automatic source-language detection. * Character-based limits that map directly to content volume. Build a representative evaluation set with product names, technical terms, long paragraphs, HTML, numbers, and customer messages. Compare terminology, meaning, tone, and formatting before moving user-facing content to production. ## How to choose a plan 1. Measure source characters for a normal week, including retries and repeated jobs. 2. Multiply by the number of target languages processed. 3. Add expected growth and a buffer for traffic peaks. 4. Select the smallest plan that covers that forecast. 5. Monitor actual usage and review the plan before large campaigns or catalog imports. For example, a catalog with 100,000 products and an average of 800 source characters contains 80 million characters. Translating the full catalog once into two target languages creates roughly 160 million character operations, which fits within the current Plus allowance. Confirm counting behavior with a real batch because your workflow may split or repeat content. ## Production checks before switching * Test high-value language pairs with native reviewers. * Confirm HTML tags, placeholders, URLs, names, and numbers remain intact. * Record source language, target language, character count, request ID, status, and duration. * Add timeouts and retry only temporary failures. * Keep original text available for support, legal, safety, and other sensitive workflows. Character pricing makes the invoice easier to forecast, but production readiness still depends on quality, error handling, latency, privacy, and operational fit. See the [AI Translate seven-day usage analysis](/blog/buyers/ai-translate-usage-openapi-market) for recent traffic, error-rate, and latency context. ## FAQ ### Is AI Translate always \$0.15 per million characters? No. That is the effective rate for the current Max plan when its two-billion-character monthly allowance is used. Pro and Plus work out to $0.60 and $0.30 per million included characters. ### Is the translation quality independently proven to match Google Translate? The marketplace listing states that the quality is the same as Google Translate and that the service uses Google AI. Run a side-by-side evaluation with your own languages and content before treating the claim as verified for your use case. ### Does one Chinese character count as more than one character? No. The listing's billing examples count `中` as one character even though it occupies three bytes in UTF-8. ## Try AI Translate Open the [AI Translate marketplace page](https://rockapi.ai/api-market/2) to review the current plans and test the API. If this is your first marketplace subscription, follow [How to subscribe to and test an OpenAPI online](/blog/buyers/how-to-subscribe-and-test-openapi) before sending production traffic.