OpenAI Quietly Bumps gpt-4o-mini TTS and Transcription to December 2025 Checkpoints

Developers using OpenAI's text-to-speech and transcription APIs are getting an automatic model upgrade today — a silent improvement that could affect latency, quality, and downstream application behavior.

Subscribe to unlock all stories

Get full access to The Singularity Ledger, archive included.

Cancel anytime. Payments powered by Stripe.