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AssemblyAI documents public APIs for speech-to-text; the API page does not state plan access. assemblyai.com, checked 10 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 10 Oct 2026 (opens in a new tab)
Zapier lists an AssemblyAI integration. zapier.com, checked 10 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 can automatically detect speakers, summarize conversations, analyze sentiment, flag sensitive content, and break audio into chapters. Their LeMUR feature lets you ask plain-language questions about your transcripts using large language models, so you can pull out action items or key insights without any extra setup.
AssemblyAI is best for small businesses that have a developer on staff and need to automatically transcribe and analyze audio at scale — think call centers, podcasters, or teams recording lots of meetings. The accuracy and AI features like speaker detection and summaries are genuinely impressive, and the pay-as-you-go pricing at $0.15 per hour keeps costs manageable if your volume is modest. The big catch is that this is a developer tool, not a plug-and-play app, so if you don't have someone who can write code or set up API connections, you'll hit a wall fast.
