kitio.aiAdded Nov 5, 2026
Mitsuko
Freemium · $5 one-timeContext-aware AI translation for SRT, VTT and ASS subtitle files
What is Mitsuko?
Mitsuko translates subtitle files with large language models that keep names, tone and context consistent across a whole season. Fansubbers, translators and video teams use it for batch work, and it can also transcribe audio into timed subtitles.
You upload SRT, VTT or ASS files and choose a model from Gemini, Claude, Grok or OpenAI. A context extractor carries character names and story details between episodes, so idioms and emotion are translated by meaning instead of word by word, while timestamps stay intact.
The audio transcriber produces timed subtitles from audio files and accepts custom instructions. More than 100 languages are supported. Pricing uses one-time credit packs that stay valid for a year, with a free option to try it.
Features
- SRT, VTT and ASS translation
- Batch episode translation
- Cross-episode context extraction
- Audio to timed subtitles
- Choice of LLM
Tags
Releases
+ Submit new release- Listed
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Organization
Hasfer
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- $5 one-time
- Billing frequency
- One-time
Mitsuko plans
Free
Free
- Free credits to try it
- Translation and transcription
Credit Pack 5M
$5 one-time
- 5,000,000 credits
- Valid for one year
Credit Pack 20M
$19 one-time
- 20,000,000 credits
- Valid for one year
Credit Pack 65M
$59 one-time
- 65,000,000 credits
- Valid for one year
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Mitsuko site.Official pricing
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Pros and cons
Pros
- Keeps names consistent across episodes
- No subscription, credits last a year
- Supports common subtitle formats
Cons
- Credit cost per file is not obvious
- Quality depends on the chosen model
- Aimed at subtitles, not other documents
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Q&A
What is Mitsuko?
Mitsuko translates subtitle files with large language models that keep names, tone and context consistent across a whole season. Fansubbers, translators and video teams use it for batch work, and it can also transcribe audio into timed subtitles.
Which subtitle formats does Mitsuko support?
It translates SRT, VTT and ASS files and keeps the original timestamps.
Which AI models does Mitsuko use?
You can translate with models from Gemini, Claude, Grok and OpenAI.
How much does Mitsuko cost?
Mitsuko is freemium, with paid plans from $5 one-time.
Is there a free version of Mitsuko?
Yes. Mitsuko has a free plan, and paid plans add more usage and features.
What are the main features of Mitsuko?
SRT, VTT and ASS translation, Batch episode translation, Cross-episode context extraction, Audio to timed subtitles, Choice of LLM.
Who makes Mitsuko?
Mitsuko is made by Hasfer.
What are the best alternatives to Mitsuko?
Popular alternatives include Taption, CaptionCreator, Banva.