AssemblyAI vs OpenAI Whisper comparison
Compare AssemblyAI and OpenAI Whisper in Audio item by item — price, plans, specs, Korean support, and commercial-use availability. In the table below, use Show differences only to filter to just the differing rows.
High-accuracy STT API for developers
A developer Voice AI platform for pre-recorded and realtime speech recognition, diarization, keyterm prompting, summarization, and voice agent APIs.
Edge vs. similar tools: It goes beyond transcription by packaging natural-language prompting, keyterm boosts, medical mode, and voice agent APIs in one platform.
The standard for open-source speech recognition and subtitling
An open-source speech recognition model released by OpenAI that supports multilingual speech-to-text, subtitle generation, and translation. It recognizes more than 90 languages, including Korean.
Edge vs. similar tools: Released under the MIT license with open model weights, so you can self-host it locally for free.
Item-by-item comparison
Pricing
- Free plan
- No
- Cheapest paid
- -
- Plans
- 3
Specs
- Languages
- 99
- Voice cloning
- -
- Real-time
- Supported
Cross-cutting
- Korean
- Supported
- API
- Yes
- Commercial use
- Allowed
Pricing
- Free plan
- Yes
- Cheapest paid
- Free
- Plans
- 1
Specs
- Languages
- 99
- Voice cloning
- Not supported
- Real-time
- Not supported
Cross-cutting
- Korean
- Supported
- API
- Yes
- Commercial use
- Allowed
AssemblyAI vs OpenAI Whisper: which should you choose?
- OpenAI Whisper can be started for free, so you can see the results first without signing up.
- AssemblyAI has the higher popularity score (AssemblyAI 86 vs OpenAI Whisper 80), so it has stronger public awareness signals in this category.