assemblyai
AssemblyAI: Universal-3.6 Pro
assemblyai/universal-3-6-pro
Our take
AI-assisted analysis based on the sources below. Suitability is an editorial assessment; test it on your own workload.
OpenRouter lists assemblyai/universal-3-6-pro as AssemblyAI's Universal-3.6 Pro, an audio-to-transcription speech-to-text model served through AssemblyAI's Sync API and described as the successor to Universal-3.5 Pro. AssemblyAI reports fewer errors than that predecessor on short conversational material, but the supplied evidence is catalog-only and includes no independent model card or measured benchmark results. Treat the performance claim as vendor-reported and validate accuracy, latency, and workflow fit on representative audio before adoption.[1]
Strengths
- The catalog identifies audio input and transcription output for speech-to-text use.[1]
- AssemblyAI describes it as the successor to Universal-3.5 Pro and offers it through the Sync API.[1]
- AssemblyAI reports fewer errors than the prior version on short conversational material; this is not independently measured.[1]
Limitations
- The source pack contains only an OpenRouter catalog entry; an independent model card was not available.[1]
- No independent benchmarks or broad accuracy measurements are supplied, so real-world performance remains unverified.[1]
- The evidence does not document language coverage, speaker diarization, timestamps, or operational constraints.[1]
Where to use it
- Consider for short conversational transcription where the vendor-reported improvement is relevant.[1]
- Potentially suitable for applications needing audio-to-transcription requests through AssemblyAI's Sync API.[1]
- A pilot candidate for speech-to-text pipelines validated on representative recordings.[1]
Sources
- [1] OpenRouter catalog · AssemblyAI: Universal-3.6 ProSources checked: Nov 13, 2026
About this model
Description below is the original text supplied by OpenRouter, shown in the source language.
Universal-3.6 Pro is AssemblyAI's speech-to-text model and the successor to Universal-3.5 Pro, served here through AssemblyAI's Sync API. Compared with Universal-3.5 Pro, AssemblyAI reports 30% fewer errors on short conversational...
Specifications
- Model ID
- assemblyai/universal-3-6-pro
- Canonical ID
- assemblyai/universal-3-6-pro-20261014
- Creator
- assemblyai
- Added to OpenRouter
- 14.10.2026
- Context length
- 0
- Modality
- audio->transcription
- Input modalities
- audio
- Output modalities
- transcription
- Token pricing
- No per-token price in the source snapshot — see OpenRouter for the billing unit
- Knowledge cutoff
- —
- Expiration date
- —
Tasks and capabilities
A grade appears only where the source supplies a matching measurement for that task, the model is active and the cohort holds at least 10 comparable models. The capability column lists facts the source declares — supported formats, reasoning and tool parameters — which are not measured quality.
| Task | Grade | Source-declared capability |
|---|---|---|
| General quality | No measurement | — |
| Coding | No measurement | — |
| Agents | No measurement | — |
| Writing | No measurement | — |
| Reasoning | No measurement | — |
| Document analysis | No measurement | — |
| Vision | No measurement | — |
| Image generation | No measurement | — |
| Audio | No measurement | input: audio |
| Video | No measurement | — |
| Embeddings | No measurement | — |
Evaluations
No evaluations are supplied for this model.
How grades work
Each letter grade compares a model only against other models scored by the same source and metric in the current snapshot. S means the top 10%, A the next 20%, B the next 30%, C the rest. Models without a published measurement are shown as not rated — a supported format alone never implies measured quality.
- S — S — top 10% of the cohort
- A — A — next 20% of the cohort
- B — B — next 30% of the cohort
- C — C — below the B band
Providers
Optional live provider statistics from OpenRouter. Missing values are unknown, not zero.
| Provider | Context length | Price in /1M | Price out /1M | Latency p50 (30m, s) | Throughput p50 (30m, tok/s) | Uptime (30m) |
|---|---|---|---|---|---|---|
| AssemblyAI | 0 | — | — | — | — | 100% |
Provider data retrieved: 13.11.2026
Related articles
No published articles identify this model yet.