Trial welcome

Write the email Sonora sends when a developer's free trial of the Sonora Diarization API is activated. Sonora is a voice API company; the Diarization API segments recorded audio into speaker turns, answering who spoke when. The recipient started the trial a few minutes ago and has not created an API key or sent a file yet. The email is titled Your Sonora trial is active, get started in 5 minutes.

The email opens by welcoming the developer to Sonora and confirming the free trial is now active. It explains that the Diarization API helps developers build more accurate speaker diarization pipelines, and that clean diarization improves three things:

• Speech-to-text accuracy: fewer word errors from speaker confusion.
• Analytics: reliable speaker turns for insights and dashboards.
• Training data: better-labeled datasets for downstream models.

A trial reminder follows: the trial runs for 14 days and includes 300 minutes of audio. It ends on April 28, 2026. Minutes that are not used by then expire. Set the trial limits apart from the body copy in a small panel, and show the diarize request as a code block.

Three quickstart steps follow, in this order:

1. Create an API key. Keys are created under account settings at https://sonora-email.s3.amazonaws.com/settings and are shown once.
2. Diarize a first file. The request is a POST to /v1/diarize with the API key as a bearer token and a JSON body carrying audio_url and speakers, where speakers may be set to auto. The response lists speaker turns with start, end, and speaker fields. The quickstart guide is at https://sonora-email.s3.amazonaws.com/docs
3. Try the playground with a sample file at https://sonora-email.s3.amazonaws.com/playground, which runs the same model without writing code.

The primary call to action is to read the quickstart, linking to https://sonora-email.s3.amazonaws.com/docs. A closing line says the team is looking forward to seeing what the recipient builds, signed The Sonora team.

The footer carries the postal address, the copyright line for 2026 and Sonora, Inc., and links to https://sonora-email.s3.amazonaws.com/privacy, https://sonora-email.s3.amazonaws.com/terms, https://sonora-email.s3.amazonaws.com/preferences to manage preferences, and https://sonora-email.s3.amazonaws.com/unsubscribe

Dark mode should be supported.

Use /world/sonora-email for brand chrome and CSS. Use the absolute HTTPS URLs from tokens.json; do not use /world/ paths as image src.

Leave the HTML in output/email.html, a plain-text version in output/email.txt, and the subject in output/meta.json as {"subject": "..."}. Don't include From, To, or Date headers.