AssemblyAI

Speech understanding APIs with a free starter tier

AssemblyAI offers transcription and speech-understanding APIs for apps that need accurate audio insights. You can start free without a credit card, then move to pay-as-you-go as your product scales.

Available on

APIWeb

Pricing

Free tier (about 185 hours pre-recorded noted on pricing FAQ); then pay-as-you-go; custom volume pricing available

Free tier available

freemium pricing

Price checked Oct 13, 2026

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Source

Official pricing page

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