Transcription API Pricing Comparison: Per-Minute APIs vs Flat Plans

A transcription API pricing comparison has to separate two things: metered API rates and finished transcription plans. An API charges per minute of audio and leaves the editor, exports and storage to you. A finished plan charges per month or per seat and includes them. This guide lists current prices for both, checked September 29, 2026, and shows the break-even math.

Start with 30 free minutes and no account.

How I compared transcription pricing

I built ConvertAudioToText, so I am disclosing the bias up front. I do not rank our service first, and no provider wins every use case.

For each product I checked:

• The billing unit: per minute, per seat, per month, a one-time pass, or a quote
• Monthly allowances and per-recording limits
• Whether speaker labels, summaries and export formats are included
• The volume needed to reach a fixed monthly price

Every competitor price below comes from that company's official pricing page, as indexed on September 29, 2026. Where I could not confirm a figure from a primary source, I describe the pricing model instead of printing a number.

Decision quiz: which pricing model fits?

Read from the top and stop at the first match.

1. Are you a developer building transcription into your own product? Price per-minute APIs, and add the engineering time for everything around them.
2. Do you regularly transcribe meetings, interviews, lectures or media and want a predictable bill? Look at flat monthly plans.
3. Do you have a short, intensive project? A one-time pass avoids a subscription.
4. Are you testing one recording? Start free. ConvertAudioToText transcribes the first 30 minutes of a file without an account.

To remember: compare the whole workflow, not the cheapest base rate. Speaker labels, summaries, exports, storage and usage limits all change the real cost.

ConvertAudioToText pricing and limits

Paid plans handle long recordings, with links and videos up to 24 hours (3 hours on the free plan). That separates them from plans that cap one meeting or file at 30 or 90 minutes.

Transcription API pricing comparison, as of September 2026

Developer APIs charge by audio duration; finished products charge by seat, month or pass. The table is alphabetical, not a ranking.

Per-hour figures are list prices before volume discounts. Features, channels, regions and commitments change the final rate.

Deepgram Nova-3 pricing per minute and per hour

As of September 2026, Deepgram lists Nova-3 at $0.0043 a minute for pre-recorded audio and $0.0077 a minute for streaming, on pay as you go. That is about $0.26 and $0.46 an hour.

That is a developer API rate, not a finished product. You still build or buy the upload flow, editor, export formats, speaker handling, summaries, storage and billing around it. Read more in Deepgram Nova-3 explained.

OpenAI Whisper API pricing per minute

As of September 2026, OpenAI lists the Whisper API at $0.006 a minute, or $0.36 an hour. OpenAI's newer transcription models are billed differently, so check its pricing page for the model you plan to use. The low unit rate does not include the work of turning raw text into a usable transcript. See OpenAI Whisper API pricing for detail.

Google Cloud Speech-to-Text and AWS Transcribe pricing

Both bill per minute of audio, with volume tiers that change the rate as usage grows. Google also offers a batch tier that is cheaper per minute in exchange for slower results. Before comparing them, fix the same conditions on both sides:

• Region
• Streaming or batch
• Language
• Speaker features
• Channel count
• Volume tier

Price that exact configuration on each official page. Our posts on AWS Transcribe pricing and Google Cloud Speech-to-Text pricing walk through the tiers.

Otter AI pricing and recording limits

Otter.ai charges per seat and meters minutes. As of September 2026, Pro is $8.33 per user per month billed annually with 1,200 minutes a month, and Business is $19.99 per user per month billed annually. Each plan also caps how long one conversation can run. Full detail: Otter AI pricing explained.

Human transcription pricing

Human transcription costs far more per hour than any API because a person types and often reviews the text. Rates depend on turnaround time, language, audio difficulty and whether you need verbatim or clean text. Get quotes from two or three services on the same sample file, and confirm turnaround and review terms, before you compare.

Transcription cost per minute: pay-as-you-go or flat rate?

Pay-as-you-go cost rises with every minute; a flat plan stays fixed for the month. To compare them:

1. Add up your monthly audio hours.
2. Multiply by the API's hourly rate.
3. Add anything the API does not include: speaker labels, summaries, storage, your own time.
4. Compare with the flat plan, including any recording cap or fair-use limit.
5. Find the break-even point: the plan price divided by the API's hourly rate.

Worked example: at Deepgram Nova-3's streaming list rate of about $0.46 an hour, the $14.99 Pro plan breaks even at about 33 hours of audio a month. At the pre-recorded rate of about $0.26 an hour, it breaks even at about 58 hours. Pro keeps the premium engine for up to 30 hours of audio in a rolling 30 days; beyond that, files may run on the standard engine. Below the break-even point, the raw API is cheaper if you are willing to build the rest yourself.

What an all-in-one API does and does not save

An API that bundles speaker labels, summaries and analysis under one bill saves integration work, but the base rate is rarely the full cost. Price the feature set you actually need:

• Base transcription
• Speaker identification
• Summaries and other analysis
• Streaming or batch processing
• Storage and retention
• Engineering and maintenance time

See the cost advantages of an all-in-one API for a worked breakdown.

Enterprise transcription cost

Enterprise pricing is negotiated because volume, retention, integrations, security and service commitments differ too much for one list price. Give every provider the same audio volume, retention policy, integration list and security requirements, and compare written quotes.

Hidden costs to check before you buy

• Per-recording caps: a monthly allowance does not help if one file is longer than the cap.
• Speaker labels: may not be in the entry rate.
• Summaries and analysis: may be billed separately.
• Export formats: confirm SRT, VTT and TXT are included.
• Storage and retention: long-term storage may cost extra.
• Overage rules: what happens when the allowance runs out.
• Language charges: confirm every language uses the advertised rate.
• Engineering time: raw API prices exclude the interface around them.

My recommendation

For regular personal or small-team transcription, I would pick a flat plan and stop counting minutes. ConvertAudioToText Pro is one option at $14.99 a month; TurboScribe and Otter.ai are others with different strengths. For a short project, a one-time pass such as the Weekly Pass avoids a subscription. For a developer with low or spiky volume, a per-minute API from Deepgram or OpenAI is cheaper, as long as you price the work around it.

Review the current plans and limits, or transcribe a file free to test your own audio first.

FAQ

What is a transcription API pricing comparison?

It separates pay-as-you-go API rates from finished transcription plans. A fair comparison lines up the billing unit, per-recording and monthly limits, speaker labels, summaries, export formats, storage, and the engineering work an API still needs around it.

How much does ConvertAudioToText cost?

Pro costs $14.99 a month, or $99.99 a year. The Weekly Pass costs $9.99 once for 1,200 premium minutes over 7 days. The first 30 minutes of a file are free without an account, and a free account transcribes up to 30 files a day, up to 30 minutes each.

How much does Deepgram Nova-3 cost per minute?

As of September 2026, Deepgram's pricing page lists Nova-3 at $0.0043 a minute for pre-recorded audio, about $0.26 an hour, and $0.0077 a minute for streaming, about $0.46 an hour, on pay as you go.

How much does the OpenAI Whisper API cost per minute?

As of September 2026, OpenAI lists the Whisper API at $0.006 a minute, which is $0.36 an hour. Check OpenAI's pricing page for its newer transcription models, which are billed differently.

Does Otter.ai cost money?

Otter.ai has a free Basic plan with 300 minutes a month. As of September 2026, Pro is $8.33 per user per month and Business $19.99 per user per month, both billed annually, and monthly billing costs more.

Is pay-as-you-go transcription cheaper than a flat-rate plan?

Pay-as-you-go is usually cheaper for low or irregular volume. A flat plan wins once your monthly hours pass the break-even point, which is the plan price divided by the API's hourly rate. Add the cost of anything the API does not include.

How much do AWS Transcribe and Google Speech-to-Text cost?

Both bill per minute of audio with volume tiers that vary by region, feature and processing mode, and Google offers a slower batch tier at a discount. Price the exact configuration on each official pricing page rather than relying on a single headline rate.

Is human transcription better for legal, medical or financial work?

Not automatically. It depends on the audio, the terminology, the review your field requires and any rules you must meet. Compare the cost of human review with the cost of correcting an automated transcript on a sample of your own recordings.

Sources

• Deepgram pricing, checked September 2026
• OpenAI API pricing, checked September 2026
• Otter.ai pricing, checked September 2026
• TurboScribe pricing, checked September 2026
• Amazon Transcribe pricing
• Google Cloud Speech-to-Text pricing
• ConvertAudioToText pricing