AssemblyAI vs Whisper Comparison

What is the difference between AssemblyAI and Whisper? Compare AssemblyAI and Whisper in details side by side to make a choice.

AssemblyAI

AssemblyAI

Freemium
VS
Whisper

Whisper

Free

Description & Key Features

AssemblyAI Description

AssemblyAI offers real‑time and batch speech‑to‑text transcription across 99+ languages, featuring speaker diarization, sentiment analysis, and language identification. It supports medical terminology, PII redaction, and custom prompts for precise conversational insights.

Features

  • Real-time streaming transcription
  • 1500-word contextual prompting
  • Speaker diarization and labeling
  • Automatic language detection code-switching
  • Auto punctuation and casing
  • Multilingual support 99+ languages
  • LLM gateway integration

Whisper Description

Whisper is an AI-powered speech recognition tool for multilingual speech recognition, speech translation, and spoken language identification.

Features

  • Speech recognition
  • Speech translation
  • Spoken language identification
  • Sequence-to-sequence model
  • Joint representation of sequence tokens and prediction decoding

User Satisfaction

AssemblyAI

of 9 users recommend
Output Quality 44.4%
Fair Pricing 55.6%
Ease of Use 55.6%
Feature Set 44.4%
Integrations 55.6%

Whisper

No feedback data yet

Pricing Details

AssemblyAI

Pricing model: Freemium

Starting at: $0.37

Available Plans:

Key Phrases: $0.01 Profanity Filtering: $0.01 Sentiment Analysis: $0.02 Custom Formatting: $0.03 Summarization: $0.03 Keyterms Prompting Add-on: $0.04 PII Audio Redaction: $0.05 GPT-5 Nano: $0.05 Translation: $0.06 gpt-oss-20b: $0.07 Entity Detection: $0.08 Auto Chapters: $0.08 PII Redaction: $0.08 Gemini 2.5 Flash Lite: $0.10 Speaker Diarization Add-on: $0.12 Start building as low as $0.15/hr: $0.15 Universal-2: $0.15 Universal-Streaming: $0.15 Universal-Streaming Multilingual: $0.15 Topic Detection: $0.15 Content Moderation: $0.15 gpt-oss-120b: $0.15 Qwen3 Next 80B A3B: $0.15 Qwen3 32B: $0.15 Universal-3 Pro: $0.21 GPT-5-Mini: $0.25 Claude 3 Haiku: $0.25 Whisper-Streaming: $0.30 Gemini 2.5 Flash: $0.30 Gemini 3 Flash: $0.50 Kimi K2.5: $0.60 Claude 3.5 Haiku: $0.80 Claude 4.5 Haiku: $1.00 GPT-5.1: $1.25 GPT-5: $1.25 Gemini 2.5 Pro: $1.25 GPT-5.2: $1.75 GPT 4.1: $2.00 Gemini 3 Pro: $2.00 Claude 4.6 Sonnet: $3.00 Claude 4.5 Sonnet: $3.00 Claude 4 Sonnet: $3.00 ChatGPT-4o: $5.00 Claude 4.6 Opus: $5.00 Claude 4.5 Opus: $5.00 Claude 4 Opus: $15.00 Pay as you go: varies Speech Understanding: varies

Whisper

Pricing model: Free

Starting at: Contact for pricing

Platforms & Capabilities

AssemblyAI

Speech-To-Text Development Audio

Best for
transcribe audio Analyze Audio Extract Texts Generate Transcripts Remove Piis

Whisper

Text-to-speech Audio

Best for:
Transcribe Audio Translate Speech Analyze Speech Generate Transcripts Extract Language

Best For Audience

AssemblyAI

Software Developers Technology Startups Large Enterprises Technical Architects Innovation Leaders

Whisper

Speech Recognition Engineers Language Translators Audio Analysts Content Creators

Screenshots & Media

AssemblyAI

Whisper

Pros & Cons

AssemblyAI

Whisper

Available Integrations

AssemblyAI

Whisper

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