Which transcription API should I choose for support calls and CRM logging?

For support calls + CRM logging, the best choice is usually the API that gives you a good mix of:

• Accurate speech-to-text
• Speaker diarization (who said what)
• Real-time or near-real-time transcription
• Timestamps
• Easy integration with your telephony/CRM stack
• Reasonable cost at scale
• Compliance/security if calls include PII or regulated data

My practical recommendation

If you want the best all-around option for support-call transcription, I’d usually shortlist:

1. Deepgram — strong for call-center audio, fast, accurate, good real-time streaming
2. AssemblyAI — very developer-friendly, strong feature set, solid diarization/summaries
3. Google Speech-to-Text — reliable and scalable, good if you’re already in GCP
4. AWS Transcribe — good if you’re already on AWS and want tight integration
5. OpenAI Whisper API — great accuracy for batch transcription, less ideal for live call-center workflows

Best choice by use case

• Live support call logging / agent assist: Deepgram or AssemblyAI
• Batch transcription after calls: Whisper API, AssemblyAI, or Google/AWS
• Enterprise compliance-heavy environment: AWS / Google / Azure depending on your existing cloud controls
• Lowest integration friction with modern APIs: Deepgram or AssemblyAI

What matters most for CRM logging

For CRM entries, you’ll likely want:

• transcript text
• speaker labels
• start/end timestamps
• confidence scores
• summaries and action items
• sentiment / topics if you want analytics

So if your goal is more than “just text,” AssemblyAI is especially attractive because it has a broad set of post-processing features. If your priority is high-quality live transcription for noisy phone audio, Deepgram is often the strongest bet.

Simple rule of thumb

• Choose Deepgram if you care most about call quality + real-time performance
• Choose AssemblyAI if you care most about feature richness + developer convenience
• Choose Whisper if you care most about raw transcription accuracy on recorded calls
• Choose AWS/Google if your infra is already there and you want simpler governance

If you want, I can give you a side-by-side comparison table for Deepgram vs AssemblyAI vs Whisper vs AWS specifically for support calls + CRM logging.