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AssemblyAI documents public APIs for speech-to-text; the API page does not state plan access. assemblyai.com, checked 9 Oct 2026 (opens in a new tab)
The pay-as-you-go plan is billed monthly with no contracts or minimum commitments. assemblyai.com, checked 9 Oct 2026 (opens in a new tab)
Zapier lists an AssemblyAI integration. zapier.com, checked 9 Oct 2026 (opens in a new tab)
Public API, plan access not stated. Pay-as-you-go billed monthly, no contracts. Zapier integration listed.
Free plan availableFree plan
AssemblyAI gives your business a way to turn speech into text using a simple API. If you record customer calls, run a podcast, or capture meeting audio, AssemblyAI can transcribe it in a wide range of languages — and then go further by identifying speakers, detecting topics, summarizing conversations, and flagging sensitive information automatically. Beyond basic transcription, the platform includes Audio Intelligence features like sentiment analysis, content moderation, and chapter detection. Their LeMUR framework lets you connect transcripts directly to large language models, so you can pull insights, generate action items, or answer questions about your audio without building a custom pipeline. AssemblyAI is built for developers. You integrate it through a REST API or official SDKs, and you can also connect it to no-code platforms like Make.com. Pricing is pay-as-you-go starting at $0.15 per hour of audio, with a $50 free credit to get started.
AssemblyAI uses AI to do much more than transcribe — it can detect speaker identities, summarize conversations, analyze sentiment, flag sensitive content, and identify topics automatically. Their LeMUR framework also lets you ask questions about your audio recordings using large language models, so you can pull action items or key insights without extra setup.
AssemblyAI is best for small businesses that have a developer on staff and need to build transcription or audio analysis into their own app or workflow. The accuracy and feature depth are impressive — you get speaker detection, summaries, and sentiment analysis all in one place for $0.15 per hour of audio. The big catch is that this is a developer tool, so if no one on your team can work with an API, you'll hit a wall fast.
