Async vs Deepgram
A detailed comparison to help you choose between Async and Deepgram.
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Verdict: Deepgram wins
Deepgram scores 4.2/5, edging out Async at 3.6/5. Developers and platform teams building voice features — transcription pipelines, live captioning, voice agents — who want public per-minute pricing, real streaming performance and the option to self-host.
Async AI studio for video, voice and avatars | Deepgram Speech-to-text API with real-time transcription and low latency | |
|---|---|---|
| Rating | 3.6 (1 review) | 4.2 (1 review) |
| Pricing Model | freemium | usage-based |
| Starting Price | Free tier available | Pricing varies |
| Best For | Podcasters and solo creators who want one browser studio for recording, audio cleanup, voice generation and publishing without assembling separate tools. | Developers and platform teams building voice features — transcription pipelines, live captioning, voice agents — who want public per-minute pricing, real streaming performance and the option to self-host. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tierteam features | api accessfree tier |
| Visit Async → | Visit Deepgram → |
Async
Pros
- + Magic Dust one-click cleanup leveled and denoised a fan-noisy home recording in my test to publishable quality while leaving natural pauses intact
- + Rebrand preserved accounts and billing — existing Podcastle subscriptions carried over unchanged to Async
- + One credit pool across 100-plus generation models (Sora 2, Veo 3.1, Kling and others per company announcements) with top-up packs for overflow
- + Annual rates cut roughly 40 percent: Essentials $11.99/month billed annually covers 450 credits, 4 hours recording and 2 hours TTS
- + Chat-based editing handled targeted cut-and-caption requests correctly on the first try in my testing
Cons
- - Monthly credits reset rather than roll over, and generative video draws down the same pool at rates that vary by model and resolution
- - Advanced video editing is shallow — multicam, keyframing and fine audio mixing trail dedicated NLEs
- - Free plan caps at 720p with a watermark and one project
- - The January 2026 rebrand scatters help content across Async and Podcastle pages with conflicting tier names
- - Generative features are a front-end over third-party models, so quality shifts when those models change
Deepgram
Pros
- + Per-second billing with no rounding up — my 47-minute test metered exactly 2,820 seconds against APIs that would have billed 48 or 60 minutes
- + Every self-serve rate is on a public pricing page, including BYO-LLM and BYO-TTS Voice Agent tiers from $0.05/min
- + One-time $200 signup credit with no card and no expiry covers roughly 700 hours of pre-recorded Nova-3 transcription
- + Self-hosted deployment is real and documented, via an official Helm chart covering STT, TTS and the Voice Agent API on Kubernetes
- + Streaming latency held up in testing and matches independent benchmarks (Coval measured Nova-3 at 85 ms mean time to final segment, October 2026)
Cons
- - Streaming prices are promotional with no end date and the regular rates printed alongside are 59-60% higher — budget for $0.0077/min, not $0.0048/min
- - Support is community and Discord only below Enterprise, even on the $4,000+/year Growth plan
- - No recurring free tier: the $200 credit is one-time, and Deepgram measures its coverage against the cheapest configuration
- - No end-user product at all — no editor, dashboard or export tools for non-technical teams
- - Accuracy on accented, noisy or mono audio trails the strongest models; Coval ranks Nova-3 19th of 30 on mixed-sample word error rate
Frequently Asked Questions
Which is better, Async or Deepgram?▼
Deepgram scores higher at 4.2/5 vs 3.6/5 for Async, making it the better-rated option in our comparison.
What is the difference between Async and Deepgram?▼
Async: Async is an AI media platform for editing video and generating voices, avatars, images and music by chatting with an assistant. It was called Podcastle until it rebranded in January 2026. Deepgram: Deepgram provides speech-to-text, text-to-speech and voice agent APIs for developers, with real-time transcription built for high volumes.
Is Async or Deepgram more affordable?▼
Async starts at €0/mo, Deepgram starts at €0/mo. Check the comparison table above for current pricing.
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