AssemblyAI - Speech to Text API Pricing Overview

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AssemblyAI - Speech to Text API Pricing Key Insights

Last updated on Jul 28, 2026


AssemblyAI - Speech to Text API offers 2 pricing editions, starting at $0. AssemblyAI - Speech to Text API pricing tiers are designed to support different usage levels and team sizes. AssemblyAI - Speech to Text API also offers a free trial. Compare the AssemblyAI - Speech to Text API pricing table below to figure out the best fit for your needs. Some plans may require you to contact AssemblyAI for custom pricing.


Get started at no cost — $0
Pay as you go — Pay As You Go
Rated 4.6 / 5

*Pricing information is supplied by the software provider or retrieved from publicly accessible pricing materials. Final cost negotiations must be conducted with the seller.

AssemblyAI - Speech to Text API Pricing FAQs

Generated using AI
Is AssemblyAI - Speech to Text API free, or does it offer a free trial?

Yes. According to G2 data, AssemblyAI - Speech to Text API offers a free plan with limited features. Users can upgrade to paid plans for additional capabilities. Visit the seller's official pricing page to compare plan options and features.

Who is AssemblyAI - Speech to Text API pricing best suited for?

AssemblyAI - Speech to Text API's pricing is best suited for developers and small businesses building voice-enabled applications who need production-grade accuracy without upfront subscription costs. G2 reviewers from small businesses across IT, healthcare, financial services, insurance, and consumer services dominate the review base and consistently praise the pay-as-you-go model for aligning cost with actual usage. Mid-market teams in staffing, marketing, and financial services use it for call analytics and compliance at scale. The free tier suits solo developers and researchers evaluating accuracy before committing. Enterprise users in oil and energy, education, and consulting also appear in G2 reviews, primarily valuing the AI pipeline depth and scalability over cost sensitivity.

What are the key differences between the free and paid versions of AssemblyAI - Speech to Text API?

AssemblyAI - Speech to Text API's free tier provides access to core speech recognition capabilities including speaker diarization, custom vocabulary, profanity filtering, and auto punctuation, supported by developer docs and community resources. It is explicitly positioned for evaluation. G2 reviewers confirm the free credits are substantial, with one user transcribing 800-1000 calls before upgrading. AssemblyAI - Speech to Text API's paid pay-as-you-go tier adds production-grade scalability with unlimited concurrency, customizable rate limits, dedicated support with sub-hour response times, and enterprise security features including EU data residency and HIPAA compliance. G2 reviewers note throttling on free accounts, with one flagging rate-limit issues resolved only after upgrading.

Is AssemblyAI - Speech to Text API considered good value for its pricing?

AssemblyAI - Speech to Text API is widely regarded as strong value across G2 reviews, with an average rating of 4.5/5. G2 reviewers consistently cite competitive pricing versus alternatives like OpenAI Whisper, Google Cloud STT, Deepgram, and Speechmatics. One reviewer paid $68 to transcribe 243 hours of audio, versus an estimated $326 with Google. Another transcribed 800-1000 calls on free starter credits alone. The recurring caveat: costs escalate when enabling multiple advanced AI features at scale, which G2 reviewers in enterprise and high-volume mid-market contexts flag as a meaningful concern. For low-to-moderate volume use cases, G2 reviews of AssemblyAI - Speech to Text API's pricing consistently describe it as cost-effective relative to accuracy delivered.

AssemblyAI - Speech to Text... Pricing Reviews

(2)
Richard V.
RV
Richard V.
Company Owner
Small-Business (50 or fewer emp.)
"Powerful, Developer-Friendly STT with Room to Evolve"
5/5
What do you like best about AssemblyAI - Speech to Text API?

* The accuracy is excellent, even on noisy audio or with multiple speakers. Many of the transcripts required minimal editing.

* Speaker diarisation works reliably — being able to split out who said what is a big plus in multi-person recordings.

* Ease of integration is a standout: the API is well documented, the onboarding is smooth, and I got up and running quickly.

* The pricing model is fair and transparent — you pay for usage rather than being locked into a subscription.

* Advanced features like Word Boost / keyword prompting, PII redaction, and language auto-detection give useful flexibility for real-world use cases. Review collected by and hosted on G2.com.

What do you dislike about AssemblyAI - Speech to Text API?

* The latency/response times can vary under load, which makes it less predictable for real-time needs.

* Customisation is somewhat limited: fine-tuning for domain-specific vocabulary or acoustic quirks isn’t as deep as one might hope.

* The API returns many fields in the response; for simpler workflows, that extra metadata can add overhead.

* The 10-hour audio length limit (for some endpoints) feels restrictive for very long recordings.

* In certain regions (e.g. Europe), some features are either missing or still in development. Review collected by and hosted on G2.com.

sai c.
SC
sai c.
"Solid Speech-to-Text API but Needs Speed Improvements"
3/5
What do you like best about AssemblyAI - Speech to Text API?

I find AssemblyAI - Speech to Text API to be highly effective for transcription tasks. Its functionality allows me to seamlessly convert speech into text, particularly highlighting the straightforward nature of this task, which the service handles adeptly. I also appreciate its real-time streaming capabilities, which enhance the efficiency and practicality of the tool for immediate transcription needs. The initial setup of AssemblyAI - Speech to Text API is easy, making it accessible and convenient to integrate into my workflow without any complications. Review collected by and hosted on G2.com.

What do you dislike about AssemblyAI - Speech to Text API?

I experience issues with the speed of AssemblyAI - Speech to Text API, which seems heavy and potentially slows down processes. Review collected by and hosted on G2.com.

Response from Lee Vaughn of AssemblyAI - Speech to Text...

Hi Sai!

Thank you for sharing your feedback with us. Sorry you've had some issues. Depending on what issues you are seeing, there could be ways to improve results. Please reach out to our support team at support@assemblyai.com with more details on the issue you are seeing, and we would be happy to help!

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