Sub Translate AI
Sub Translate AI is an online subtitle and video translator tool that utilizes AI-powered translation technology. Its primary function is t...
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What is Sub Translate AI?
Sub Translate AI is an AI-powered subtitle translation tool focused on making video content and subtitle files accessible in multiple languages. It is designed to translate SRT and VTT subtitles, and it also supports audio and video inputs such as MP3, WAV, and MP4 on paid plans. The service emphasizes context-aware translation, so it can use surrounding subtitle content to improve continuity and meaning.
The tool is aimed at people who work with video subtitles and need fast, practical translation workflows. Based on the website, that includes creators, educators, businesses, and anyone translating spoken-content media for a global audience. It is positioned as a simple upload-select-translate-download workflow rather than a complex localization platform.
A notable feature is that the service can translate whole subtitle files with multiple rounds of translation for stability, and higher plans add custom translation instructions. It also supports batch workflows, allowing multiple files and multiple target languages in one translation run depending on the plan. The translated files are saved for a limited time, which suggests it is built for short-term production workflows rather than long-term asset storage.
The website also highlights practical limits by plan, including maximum subtitle counts, duration caps, file size caps, and language batching. Free usage is credit-based, while the paid tiers increase monthly credits and expand supported file sizes, translation duration, and batch capacity. Overall, it is a niche subtitle translation product built for speed, context, and multilingual video delivery.
Sub Translate AI pricing
Pricing model: Freemium
Free Credits: free tier for SRT and VTT translation, up to 150 subtitles per translation. Starter Plan: $9.9/month, 60 credits per month, faster translation, multiple rounds of translation for stability, max audio/video duration 60 minutes, supports mp3/wav/mp4, maximum 6000 subtitles per translation, up to 5 files at a time, up to 5 languages at once, translated files saved for 15 days. Premium Plan: $19.9/month, 200 credits per month, includes all Starter features, max audio/video duration 180 minutes, supports additional customized translation instruction, up to 10 files at a time, up to 10 languages at once. Platinum Plan: $39.9/month, 500 credits per month, everything in Premium, max audio/video duration 360 minutes. Business Plan: custom pricing not listed, with personalized options available by contact. The site also states max upload size of 5GB per video and 2GB per audio file, and unused credits expire at subscription end or renewal.
Sub Translate AI pros
- Supports SRT and VTT subtitles
- Translates with context awareness
- Works with audio and video files on paid plans
- Supports MP3 input
- Supports WAV input
- Supports MP4 input
- Offers multiple rounds of translation for stability
- Allows batch file translation
- Allows multiple target languages at once
- Higher plans support custom translation instructions
- Translated files are saved for 15 days
- Free credit option available
- Monthly credits reset each month
- Large subtitle limits on paid tiers
- Business pricing is available for custom needs
Sub Translate AI cons
- Free tier is limited to subtitle files
- Free tier is capped at 150 subtitles per translation
- Starter plan is limited to 60 minutes of audio or video
- Starter plan allows only 5 files at a time
- Starter plan allows only 5 target languages at once
- Translated files are only kept for 15 days
- Unused credits expire when the subscription ends
- Business pricing is not published
- Audio/video upload size caps may be restrictive
- The main workflow is focused on subtitles, not general document translation
Frequently asked questions about Sub Translate AI
What file types does Sub Translate AI support?
The website says the service supports SRT and VTT subtitle files, and on paid plans it also supports audio and video formats such as MP3, WAV, and MP4. The file support is centered on subtitle workflows for spoken media rather than broad document translation.
Does it translate subtitles using context?
Yes. The site emphasizes context-aware translation and says it can combine surrounding subtitle content to improve coherence, stability, and meaning. This is one of its main differentiators from line-by-line subtitle translation tools.
Is there a free plan?
Yes. The free credits tier supports SRT and VTT files and is limited to 150 subtitles per translation. It is intended as an entry point before moving to paid monthly subscriptions.
What are the Starter Plan limits?
The Starter Plan costs $9.9 per month and includes 60 credits per month. It supports up to 60 minutes of audio or video, up to 6000 subtitles in one translation, up to 5 files at once, and up to 5 languages at once, with translated files saved for 15 days.
What does the Premium Plan add?
The Premium Plan costs $19.9 per month and includes 200 credits per month. It keeps all Starter features and increases the max audio/video duration to 180 minutes, adds support for customized translation instructions, and raises the batch limit to 10 files and 10 languages at once.
What is included in the Platinum Plan?
The Platinum Plan costs $39.9 per month and includes 500 credits per month. The site says everything else stays the same as Premium, but the maximum audio/video duration increases to 360 minutes.
Are unused credits carried over?
No. The website states that unused credits expire when the subscription ends or reset when the plan renews. Credits are only valid during the current subscription period.
How long are translated files stored?
Translated files are saved for 15 days according to the pricing page. That means the service appears designed for short-term access and download workflows rather than long-term file archiving.
Can businesses get custom pricing?
Yes. The site mentions a Business Plan with custom pricing and says businesses can contact the company for more personalized options. The exact price is not listed publicly.
What are the upload size limits?
The pricing page lists a maximum upload file size of 5GB for video and 2GB for audio. It also notes that audio larger than 2GB may be compressed, and video files may have their audio extracted and compressed.