gemini-transcribe-wrapper

A free video transcription CLI using gemini-3.5-transcribe that outputs .diarized.srt, .srt, and .txt files.

Quick Start

Prerequisites

Install the tool

(Supports Python 3.10–3.13; Python 3.12 is recommended)

Linux / macOS:

export GEMINI_API_KEY=your_key_here
uv tool install --python 3.12 gemini-transcribe-wrapper@latest
gtw -v

Windows (Command Prompt):

set GEMINI_API_KEY=your_key_here
uv tool install --python 3.12 gemini-transcribe-wrapper@latest
gtw -v

Transcribe for free

gtw sample.mp4   # with `GEMINI_API_KEY` set
# or
gtw --gemini-api-key YOUR_API_KEY sample.mp4
# or, with multiple keys for round-robin + 429 fallback:
gtw --gemini-api-keys KEY1,KEY2,KEY3 sample.mp4

Output (default: --no-diarize — no speaker labels, fewer API calls):

sample.transcript.json
sample.srt
sample.txt

For speaker-diarized output, opt in with --diarize:

gtw --diarize sample.mp4

Output (with --diarize):

sample.diarized.transcript.json
sample.diarized.srt
sample.srt
sample.txt

What are improved by this project?

1. Transcription Quality & Usability

  • Raw AI Output to Ready-to-Use Subtitles: Converts JSON transcription output directly into formatted .srt (with natural timestamp alignment and line breaking), readable .txt paragraphs, and (with --diarize) .diarized.srt files in a single run.
  • Korean Transcription Error Correction: Automatically post-processes common Gemini Korean misrecognitions (e.g. correcting erroneous romanized "su" into "수" in patterns like "~할 su 있다/없다", "~할 su밖에", "~할 su도", "~할 su가" with proper Korean spacing and particle attachment).
  • Fast Speaker Labeling: Allows iterative speaker renaming (--speakers 'spk:0=Host;spk:1=Guest') instantly without re-calling the API by reusing saved transcripts.

2. Overcoming Free-Tier Limits & Constraints

  • Audio Length Limit Bypass: Handles audio files of any length by auto-splitting into safe units (59-min logical units for --no-diarize, 29-min chunks for --diarize) and transparently stitching timestamps together.
  • Rate Limit Throttling (Max 2 RPM): Applies a monotonic rate limiter (default 60s interval) across all chunks and multi-file batches to prevent 429 rate-limit errors.
  • Daily Quota Tracking: Tracks daily Pacific-time API usage locally (~/.cache/gemini-transcribe-wrapper/usage-<sha256(key)[:12]>.json) with masked key logging (e.g. API calls today 2026-08-30 (PST-08:00) with key 'AIza****abcd': attempted 3 (free tier limit: ~25)).
  • Free-Tier-Friendly Defaults: --no-diarize is the default to maximize audio duration per API call and minimize API consumption.
  • Multi-Key Round-Robin + 429 Fallback: Pass several keys with --gemini-api-keys=KEY1,KEY2,.... The wrapper cycles keys in round-robin order across chunks; on a 429 with retry hint it cools down on the current key once and retries, then falls through to the next key. All keys exhausted → graceful abort with exit code 2. See Multi-Key Strategy for details.
  • Graceful 429 Abort: On HTTP 429 (rate limit or quota exhausted) when running with a single key, calculates the exact sleep seconds until the Pacific midnight reset and aborts the batch immediately (exit code 2) to prevent wasting quota.

Documentation & Guides

Relevant Repositories

License

MIT

Project links

Data verified by PyPI on Aug 31, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
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  • Released:
Newer release available (0.1.10)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for tayaee from gravatar.com tayaee

Credits

Author: tayaee

GitHub Statistics

Data verified by PyPI on Aug 31, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.10

Tags

diarization gemini speech-to-text srt stt subtitles transcription

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