What is the latest version of AssemblyAI?

The current shipped version of AssemblyAI is Universal-3.6 Pro Realtime, as of November 6, 2026.

How much does AssemblyAI cost?

AssemblyAI starts at $0.15 per month on its cheapest paid tier, as of November 6, 2026.

What AI model does AssemblyAI use?

AssemblyAI runs primarily on AssemblyAI-TTS-1.

← Audio

AssemblyAI

Name: AssemblyAI
Price: 0.15 USD
Author: AssemblyAI

AssemblyAI · #3 most active of 15 in Audio

Compare →

Transcription plus summarisation, topic detection and speaker labels for developers.

100

Trust score · Verified

3 data points checked · 2026-11-02

Model stack: VerifiedEntry price: VerifiedVersion: VerifiedHow this works →

Current version

Universal-3.6 Pro Realtime

Entry cost

Free tier · from $0.15/1M tok

Changes / 30d

The short answers · verified November 6, 2026

What is the latest version of AssemblyAI?: The current shipped version of AssemblyAI is Universal-3.6 Pro Realtime, as of November 6, 2026.
How much does AssemblyAI cost?: AssemblyAI starts at $0.15 per month on its cheapest paid tier, as of November 6, 2026.
What AI model does AssemblyAI use?: AssemblyAI runs primarily on AssemblyAI-TTS-1.

Source: AssemblyAI — assemblyai.com · Reusable under CC BY 4.0 — cite Tomorrow

Capabilities

Speaker diarization
Summarisation
Topic detection
PII redaction
LeMUR framework
Pre-recorded STT
Real-time STT
Voice Agent API
Speaker Diarization
Translation
Sentiment Analysis
Entity Detection
PII Redaction
LLM Gateway
Guardrails
Medical Mode
Keyterms Prompting
Voice Focus
Speech Understanding
Prompt Caching
Speech Understanding Add-Ons
Guardrails Add-Ons
Speaker Identification
PII Audio Redaction
Diarization
Prompting
Speech-to-Text
Real-time Transcription
Voice Agents
Content Moderation
Pre-recorded Speech-to-Text
Streaming Speech-to-Text
Synchronous Speech-to-Text
Streaming STT
Synchronous STT
Speech Understanding API
Guardrails API
LLM Gateway API
Custom Formatting
Sync STT
Dictation API
Text-to-Speech API
Text to Speech
Text-to-Speech
Voice Cloning

Pricing

Free Credits
$50 in free credits on signup, no credit card required. Includes up to 5 concurrent streams/min.
Free
Universal-2 Async STT
$0.15 per audio hour
$0.15
Universal-Streaming English / Multilingual
$0.15 per WebSocket session hour
$0.15
Universal-3.5 Pro Async STT
$0.21 per audio hour
$0.21
Universal-3.6 Pro Realtime STT
$0.45 per WebSocket session hour
$0.45
Text-to-Speech (AssemblyAI-TTS-1)
$15 per 1 million input characters
$15

Entry price over time

7/28/2026 · $011/8/2026 · $0.15

Geek mode

Models under the hood

AssemblyAI-TTS-1
AssemblyAI
disclosed
Claude
Anthropic
disclosed
Claude 4.6 Sonnet
Anthropic
disclosed
Claude 4.8 Opus
Anthropic
disclosed
Gemini 2.5 Pro
Google
disclosed
Gemini 3.5 Flash
Google
disclosed
GPT-5.5
OpenAI
disclosed
Qwen3 Next 80B A3B
Alibaba
disclosed
u3-rt-pro
AssemblyAI
disclosed
Universal-2
AssemblyAI
disclosed
universal-3-6-pro
AssemblyAI
disclosed
universal-3-pro
AssemblyAI
disclosed
Universal-3.5 Pro
AssemblyAI
disclosed
Universal-3.5 Pro Realtime
AssemblyAI
disclosed
Universal-3.6 Pro Realtime
AssemblyAI
disclosed
Universal-Streaming English
AssemblyAI
disclosed
Universal-Streaming Multilingual
AssemblyAI
disclosed

Context window

n/a

Public API

yes

Multi-model routing

yes

Stack signals

Shared model stack

Other tracked products running on the same foundation models — a quick read on how much of the catalog moves when one of these models changes.

Claude+1 aliasAnthropic · 47 products
- Amazon Q Business
- Lexis+ AI
- Windsurf
- Writesonic
- Poe
- Gamma
- Lovable
- CoCounsel
- Copy.ai
- Notion AI
- AI/BI Genie
- SciSpace
- +35 more
GPT-5.5+1 aliasOpenAI · 5 products
Gemini 3.5 FlashGoogle · 3 products
Claude 4.6 SonnetAnthropic · 2 products
- Cursor
- AssemblyAI
Gemini 2.5 ProGoogle · 2 products
- Cline
- AssemblyAI
AssemblyAI-TTS-1AssemblyAI · 1 product
- AssemblyAI
Claude 4.8 OpusAnthropic · 1 product
- AssemblyAI
Qwen3 Next 80B A3BAlibaba · 1 product
- AssemblyAI

green disclosed · amber inferred · grey unattributed. Aliases are folded into one model; provider concentration counts only models with an established vendor.

Reported scale

Reference data. Each figure is whatever the source actually said — weekly users, downloads, revenue run-rate — with its own definition and date. These are not comparable between tools and are never used to rank anything.

No public usage figure on record for this product.

Also in Audio

All Audio

Deepgram

Real-time speech to text

Version: Nova-3
Cost: Free tier · from $4,000/min
Model: Aura-1

MiniMax Speech

MiniMaxChina

Multilingual TTS and voice cloning at low per-character rates.

Version: 2.8
Cost: from $30/mo
Model: MiniMax Music 3.0

Mureka

Kunlun TechChina

Music generation with stem export and a public API.

Version: Remix
Cost: Free tier · from $8/mo
Model: Mureka V8

Suno

Full songs from a text prompt

Version: v6
Cost: Free tier · from $10/mo
Model: Bark

ElevenLabs

Lifelike text to speech

Version: Eleven v4
Cost: Free tier · from $6/mo
Model: Dubbing v2

Whisper

OpenAI

Open-weight speech recognition

Version: whisper-1
Cost: Pricing not specified on page
Model: gpt-transcribe

Elsewhere on the same models

Products in other segments that name one of AssemblyAI's models in their stack.

Abridge

Ambient clinical documentation

Version: Abridge Platform One
Cost: Pricing is not publicly disclosed. Contact sales for enterprise pricing.
Model: GPT-5.5

Agentforce

Salesforce

Autonomous service and sales agents grounded in CRM data.

Version: Agentforce
Cost: from $2/mo
Model: Claude

AI/BI Genie

Databricks

Ask your lakehouse questions

Version: Genie
Cost: No per-seat or per-license fees. Included with Databricks Lakehouse (standard DBU rates apply).
Model: Claude

Amazon Q Business

AWS

Enterprise assistant grounded in a company's AWS-connected content.

Version: Amazon Q Business
Cost: Free tier · from $3/mo
Model: Claude

Amazon Q Developer

AWSUnited States

AWS-native coding agent

Version: Developer
Cost: Free tier · from $19/mo
Model: Claude

CoCounsel

Thomson Reuters

Legal assistant on Westlaw

Version: 2026 platform
Cost: Enterprise contract pricing
Model: Claude

Change history

Nov 6, 2026first seenpricing
Entry price increased to $0.15/mo
$0$0.15
source
Nov 4, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 31, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 30, 2026first seenpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 30, 2026first seencapability
New capabilities: Text-to-Speech
43 tracked44 tracked · +Text-to-Speech
source
Oct 29, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.6 Pro Realtime
source
Oct 29, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 29, 2026first seencapability
New capabilities: Text to Speech
42 tracked43 tracked · +Text to Speech
source
Oct 27, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.6 Pro Realtime
source
Oct 27, 2026first seenpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 27, 2026announcedversion
AssemblyAI moved to Universal-3.5 Pro
Universal-3.6 Pro RealtimeUniversal-3.5 Pro
source
Oct 27, 2026announcedmodel
AssemblyAI added AssemblyAI-TTS-1 to its model stack
Claude, Claude 4.6 Sonnet, Claude 4.8 Opus, GPT-5.5, Gemini 2.5 Pro, Gemini 3.5 Flash, Qwen3 Next 80B A3B, Universal-2, Universal-3.5 Pro, Universal-3.5 Pro Realtime, Universal-3.6 Pro Realtime, Universal-Streaming English, Universal-Streaming Multilingual, u3-rt-pro, universal-3-6-pro, universal-3-proAssemblyAI-TTS-1, Claude, Claude 4.6 Sonnet, Claude 4.8 Opus, GPT-5.5, Gemini 2.5 Pro, Gemini 3.5 Flash, Qwen3 Next 80B A3B, Universal-2, Universal-3.5 Pro, Universal-3.5 Pro Realtime, Universal-3.6 Pro Realtime, Universal-Streaming English, Universal-Streaming Multilingual, u3-rt-pro, universal-3-6-pro, universal-3-pro
source
Oct 27, 2026announcedcapability
New capabilities: Text-to-Speech API
41 tracked42 tracked · +Text-to-Speech API
source
Oct 27, 2026announcedpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 27, 2026announcedcapability
New capabilities: Voice Cloning
44 tracked45 tracked · +Voice Cloning
source
Oct 27, 2026announcedversion
AssemblyAI moved to AssemblyAI-TTS-1
Universal-3.6 Pro RealtimeAssemblyAI-TTS-1
source
Oct 27, 2026announcedpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 27, 2026announcedversion
AssemblyAI moved to Universal-3.6 Pro Realtime
AssemblyAI-TTS-1Universal-3.6 Pro Realtime
source
Oct 27, 2026announcedpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 26, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro
Universal-3.6 ProUniversal-3.5 Pro
source
Oct 26, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 25, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro
Universal-3.5 Pro / Universal-3.6 Pro RealtimeUniversal-3.6 Pro
source
Oct 24, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro / Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.5 Pro / Universal-3.6 Pro Realtime
source
Oct 20, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro
Universal-3.6 Pro RealtimeUniversal-3.5 Pro
source
Oct 19, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.6 Pro Realtime
source
Oct 18, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro
Universal-3.5 Pro / Universal-3.6 Pro RealtimeUniversal-3.5 Pro
source
Oct 17, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro / Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.5 Pro / Universal-3.6 Pro Realtime
source
Oct 15, 2026first seenversion
AssemblyAI moved to Universal-3.5 Pro
Universal-3.6 Pro RealtimeUniversal-3.5 Pro
source
Oct 14, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro Realtime
Universal-3.6 Pro (Realtime) / Universal-3.5 Pro (Async)Universal-3.6 Pro Realtime
source
Oct 14, 2026first seenpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 14, 2026first seencapability
New capabilities: Dictation API
40 tracked41 tracked · +Dictation API
source
Oct 13, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro (Realtime) / Universal-3.5 Pro (Async)
Universal-3.5 ProUniversal-3.6 Pro (Realtime) / Universal-3.5 Pro (Async)
source
Oct 13, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 10, 2026first seenpricing
Entry price increased to $0.15/mo
$0$0.15
source
Oct 10, 2026first seencapability
New capabilities: Sync STT
39 tracked40 tracked · +Sync STT
source
Oct 9, 2026first seenpricing
Entry price decreased to $0/mo
$4.5$0
source
Oct 6, 2026first seenversion
AssemblyAI moved to Universal-3.6 Pro Realtime
Universal-3.5 ProUniversal-3.6 Pro Realtime
source
Oct 5, 2026first seenpricing
Entry price decreased to $0/mo
$0.15$0
source
Oct 4, 2026first seenpricing
Entry price decreased to $0.15/mo
$4.5$0.15
source
Oct 3, 2026first seenpricing
Entry price increased to $4.5/mo
$0$4.5
source

Subscribe to AssemblyAI changes

AssemblyAI compared

Straight head-to-head pages against the busiest products in Audio.

AssemblyAI vs Deepgram AssemblyAI vs MiniMax Speech AssemblyAI vs Mureka AssemblyAI vs Suno AssemblyAI vs ElevenLabs AssemblyAI vs Whisper

How to cite this page

Free to cite and reuse under CC BY 4.0. Permalink: https://tomorrow.aliensquad.ai/tools/assemblyai

APA

Tomorrow. (2026). AssemblyAI — version, pricing and model stack [Data set entry]. AlienSquad. Retrieved 2026-11-08, from https://tomorrow.aliensquad.ai/tools/assemblyai

BibTeX

@misc{tomorrow-tools-assemblyai,
  author       = {{Tomorrow}},
  title        = {AssemblyAI — version, pricing and model stack},
  year         = {2026},
  publisher    = {AlienSquad},
  howpublished = {\url{https://tomorrow.aliensquad.ai/tools/assemblyai}},
  note         = {Accessed: 2026-11-08}
}