Trigger.dev vs AssemblyAI
Open-source background jobs with no timeouts and full observability
vs. Best-in-class speech-to-text API — Universal models, 99 languages, low-latency streaming
Pricing tiers
Trigger.dev
Free
$0. 5K runs/mo. 1 concurrent run. 1 team member. 7-day log retention.
Free
Self-Host (OSS)
Free. Apache-2.0 license. Docker Compose + Postgres + Redis.
$0 base (usage-based)
Hobby
$10/mo. 50K runs/mo. 25 concurrent. Unlimited queue time.
$10/mo
Pro
$50/mo (starts at — usage scales). 250K runs/mo baseline. 100 concurrent. Priority.
$50/mo
Enterprise
Custom. HIPAA, SSO, dedicated clusters, on-prem.
Custom
AssemblyAI
Free Credits
$50 in free credits on signup. Full API access.
Free
Pay-as-you-go
Per-hour billing by model. No minimum.
$0 base (usage-based)
Enterprise
Custom contracts. SLA, private deployments, BAA.
Custom
Free-tier quotas head-to-head
Comparing free on Trigger.dev vs free-trial on AssemblyAI.
| Metric | Trigger.dev | AssemblyAI |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Trigger.dev · 13 features
- Batch Trigger — Trigger many runs at once with limits.
- Environment Variables — Manage secrets in dashboard.
- Idempotency Keys — Prevent duplicate runs.
- Machine Sizing — Pick CPU/RAM per task.
- Queues + Concurrency — Named queues for controlled throughput.
- Realtime + React Hooks — Subscribe to run progress from client.
- Retries — Exponential + custom strategies.
- Schedules — Cron-triggered runs.
- Self-Hosting — Run locally or on your infra.
- Subtasks + triggerAndWait — Compose tasks by triggering children.
- Task Metadata — Attach arbitrary metadata to runs.
- Tasks — Define long-running TS tasks.
- wait.for / wait.until — Durable waits — minutes, hours, days.
AssemblyAI · 11 features
- Advanced Prompting — Streaming with disfluency + code-switching + realtime diarization.
- Audio Intelligence — Sentiment, topic detection, summarization, entity detection, content safety, IAB…
- Auto Punctuation — Smart capitalization + punctuation.
- Keyterm Prompting — Boost accuracy for domain vocabulary.
- LeMUR (LLM framework) — Run LLMs over transcripts: Q&A, summary, action items.
- Medical Mode — Specialized for clinical + medical vocabulary.
- PII Redaction — Auto-redact credit cards, SSNs, addresses, emails.
- Pre-recorded Transcription — Upload audio/video URL or file → transcript.
- Realtime Streaming — WebSocket-based low-latency STT.
- Speaker Diarization — Identify who spoke when.
- Webhooks — Auto-notify when transcription finishes.
Developer interfaces
| Kind | Trigger.dev | AssemblyAI |
|---|---|---|
| CLI | trigger.dev CLI | — |
| SDK | @trigger.dev/react-hooks, @trigger.dev/sdk | assemblyai-go, assemblyai (Node), assemblyai (Python), assemblyai (Ruby) |
| REST | Trigger.dev REST API | AssemblyAI REST API |
| OTHER | Trigger.dev Dashboard, Trigger.dev Webhooks | Streaming WebSocket, Webhooks |
Staxly is an independent catalog of developer platforms. Outbound links to Trigger.dev and AssemblyAI are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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