# Fluen AI

> AI-powered captioning and translation platform. Upload video or audio, get professional subtitles in minutes, translate into 50+ languages, fine-tune in a browser-based editor, and export in any format.

Fluen AI is used by content creators, enterprises, language service providers, and media companies to produce broadcast-quality subtitles at scale. Trusted by teams at Adobe, Roche, Airbus, NBCUniversal, L'Oreal, Salesforce, and Siemens.

## Product

Fluen Studio is the core web application at https://studio.fluen.ai. Users upload video or audio files and the platform generates subtitles using a multi-engine AI stack (OpenAI, Deepgram, AssemblyAI, DeepL, Anthropic). A proprietary segmentation engine then transforms raw transcription into natural, well-timed subtitle cues — with proper punctuation, capitalization, line breaks, and reading-speed constraints.

Key capabilities:
- AI transcription with <1% word error rate
- Translation into 50+ languages with language-aware re-segmentation
- Speaker recognition with named, editable labels rendered as [Speaker Name] in the cue text (also supports classic dash markers or no markers); speakers are color-coded in the editor for quick rename and reassignment
- Filler word removal
- AI Wordsmith: automatic rephrasing to fit character and timing constraints
- Browser-based subtitle editor with waveform timeline and synced video preview
- Caption styling: fonts, colors, positioning, background plates
- Export formats: SRT, VTT, TTML, SBV, ITT, EBU STL, SSA, burned-in MP4 (4K/1080p/720p), plus .txt/.docx/.pdf transcripts
- SRT import (Premium): during caption review, replace the auto-generated captions with your own SRT file, then translate (the source video is still required; there is no SRT-only workflow)
- Custom glossary for consistent terminology
- Shared workspaces with roles, permissions, and review links
- REST API for programmatic access

## Plans

- **Free**: 3 files, no credit card required. Includes AI subtitles, segmentation, speaker detection, translation.
- **Premium**: $29/mo (or $259/year). 150 min/month. Full editing tools, 4K export, all subtitle formats, AI rephrasing.
- **Team**: $59/mo (or $499/year). 300 min/month, 2 seats included. Shared workspaces, permissions, priority support.
- **Enterprise**: Custom pricing. High-volume, REST API access, dedicated account manager, optional human post-editing.

## Supported Languages

50+ languages including: English, Spanish, German, French, Italian, Portuguese, Dutch, Chinese (Simplified/Traditional), Japanese, Korean, Arabic, Hindi, Russian, Swedish, Norwegian, Danish, Finnish, Polish, Czech, Turkish, Thai, Vietnamese, Indonesian, and many more. Full list at https://fluen.ai/languages.

## Key Pages

- [Home](https://fluen.ai/)
- [Pricing](https://fluen.ai/pricing)
- [Enterprise](https://fluen.ai/enterprise)
- [Languages](https://fluen.ai/languages)
- [FAQ](https://fluen.ai/faq)
- [Contact](https://fluen.ai/contact)
- [Blog](https://fluen.ai/blog)
- [API Documentation](https://studio.fluen.ai/apidocs.html)

## Feature Pages

- [Subtitle Generator](https://fluen.ai/subtitle-generator)
- [Subtitle Translation](https://fluen.ai/subtitle-translate)
- [Subtitle Editor](https://fluen.ai/subtitle-editor)
- [Add Subtitles to Video](https://fluen.ai/add-subtitles)
- [Add Subtitles to YouTube](https://fluen.ai/add-subtitles-to-youtube)
- [Video Transcription](https://fluen.ai/video-transcription)
- [Audio to Text Converter](https://fluen.ai/audio-to-text-converter)
- [Translate Subtitles to English](https://fluen.ai/translate-subtitles-to-english)
- [Translated Captions for Zoom](https://fluen.ai/translated-captions-zoom)
- [Video Subtitle Creator](https://fluen.ai/video-subtitle-creator)
- [Transcription Features](https://fluen.ai/features/transcription)
- [Translation & Editing Features](https://fluen.ai/features/translation)
- [Output & Collaboration Features](https://fluen.ai/features/output)
- [Burned-in Video Export](https://fluen.ai/features/burn-in)
- [Caption Styling & Positioning](https://fluen.ai/features/caption-styling)
- [Subtitle Layout Reprocessing](https://fluen.ai/features/layout-reprocessing)
- [Custom Glossary](https://fluen.ai/features/glossary)
- [Team Collaboration](https://fluen.ai/features/collaboration)

## Use Cases

Fluen serves e-learning, healthcare, digital marketing, language service providers, corporate communications, broadcasting, film production, podcasters, and non-profits.

## Localized versions

- English: https://fluen.ai/ (default)
- German: https://fluen.ai/de/
- Spanish: https://fluen.ai/es/
- French: https://fluen.ai/fr/
- Italian: https://fluen.ai/it/
- Dutch: https://fluen.ai/nl/

## Contact

- Website: https://fluen.ai/contact
- Support: support@fluen.ai
- Sign up: https://studio.fluen.ai/signup