OpenAI's Whisper ASR model, known for its accuracy in automatic speech recognition, faces challenges in handling large audio files due to its 25 MB and 30-second input limitations, which complicates transcription for enterprise projects. Gladia offers an optimized, production-grade alternative that enhances Whisper's capabilities by eliminating hallucinations and supporting real-time transcription, speaker diarization, and code-switching across 99 languages. Gladia's API accommodates audio files up to 500 MB and 135 minutes, removing the need for manual file splitting, and supports various media formats and URL processing. The tutorial provides developers with instructions on using Gladia's API for transcribing large audio or video files using Python, emphasizing best practices like securing API keys as environment variables.