AssemblyAI vs Insomnia
Best-in-class speech-to-text API — Universal models, 99 languages, low-latency streaming
vs. Open-source API client + design platform — the developer-first Postman alternative
Pricing tiers
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
Insomnia
Free
$0. Unlimited local. Cloud sync with E2EE. 1 project. Local + Git storage. Up to 3 members.
Free
Pro
$5/user/mo annual. Unlimited projects, cloud sync + Git sync + Insomnia AI.
$5/mo
Enterprise
$25/user/mo. SSO, SAML, RBAC, audit log, dedicated SLA, VPC.
$25/mo
Free-tier quotas head-to-head
Comparing free-trial on AssemblyAI vs free on Insomnia.
| Metric | AssemblyAI | Insomnia |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
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.
Insomnia · 19 features
- API Design (OpenAPI) — Spec editor + preview.
- Auth Helpers — OAuth, AWS, Hawk, Bearer, etc.
- Cloud Sync (E2EE) — Opt-in encrypted sync.
- Environments — Variables per env.
- Git Sync — Version with your repo.
- GraphQL — Query + schema explorer.
- gRPC — gRPC client.
- HTTP Client — REST request builder.
- inso CLI — Run API tests + lint specs in CI.
- Insomnia AI — AI-assisted request building.
- Local-First Storage — No account required.
- Mock Server — Build mocks from OpenAPI (Pro).
- Plugins — Extend via Node.js.
- Request Collections — Grouped requests.
- Scratch Pad — Local-only mode (re-added after backlash).
- SOAP — WSDL + SOAP.
- Teams — Shared workspaces.
- Templating Engine — Nunjucks + JS snippets.
- WebSockets — WS connection + messages.
Developer interfaces
| Kind | AssemblyAI | Insomnia |
|---|---|---|
| CLI | — | inso CLI |
| SDK | assemblyai-go, assemblyai (Node), assemblyai (Python), assemblyai (Ruby) | Plugin API |
| REST | AssemblyAI REST API | Insomnia Cloud API |
| OTHER | Streaming WebSocket, Webhooks | Git Sync (built-in), Insomnia Desktop |
Staxly is an independent catalog of developer platforms. Some links to AssemblyAI and Insomnia may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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