Amazon Lex
Don’t want to wire up the Amazon Lex API? Drop the file here.
The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.
AWS conversational-AI platform for voice and text bots.
Best for aWS-standard developers building voice and chat bots integrated with AWS services. Pricing: usage-based.
What it is
Amazon Lex is the AWS conversational-AI platform powering Amazon Connect contact-center bots and many AWS customer's text and voice chatbots. The product handles intent detection, slot filling, and dialogue management with integrations to Amazon Polly for text-to-speech and Amazon Transcribe for speech-to-text. Pricing is per-request pay-as-you-go; voice requests cost more than text. Lex is one of three major cloud conversational-AI platforms alongside Google Dialogflow and Microsoft Azure Bot Service. Pricing and product details listed here were last reviewed by Neugence on 2026-05-12; check the vendor site for current values before quoting.
Watch out for: AWS-only; smaller community than Dialogflow; complex pricing.
Install / use
aws.amazon.com/lex — $0.004/voice request, $0.00075/text request
What people actually do with Amazon Lex-style transcription
The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.
Features
| Speaker diarization | No |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | None |
| HIPAA eligible | No |
Amazon Lex vs Whipscribe
| Feature | Amazon Lex | Whipscribe |
|---|---|---|
| Category | Transcription APIs | Transcription APIs |
| Pricing | Not verified | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | Not verified | Named in the summary, key quotes and chapters |
| Word timestamps | Not verified | Yes |
| Streaming | Not verified | No |
| Languages | — | 99 |
| Platforms | API | Web, API, MCP |
Alternatives to Amazon Lex
Frequently asked about Amazon Lex
What platforms does Amazon Lex support?
Amazon Lex is an API — you call it from whatever you build, on any platform with an HTTP client.
How do I get started with Amazon Lex?
There is nothing to install — Amazon Lex is used in the browser. Create an account on the vendor's site and upload or connect your audio.
What are the limitations of Amazon Lex?
AWS-only; smaller community than Dialogflow; complex pricing.
Who is Amazon Lex best for?
AWS-standard developers building voice and chat bots integrated with AWS services.
Is Amazon Lex open source?
No. Amazon Lex is a proprietary API from Amazon Web Services. If you need source you can read and run yourself, the open-source tools in this directory are the place to look.
Who makes Amazon Lex?
Amazon Lex is made by Amazon Web Services.
What kind of tool is Amazon Lex?
In this directory Amazon Lex is filed under meetings, agents, api as a API.
What are the alternatives to Amazon Lex?
There is a side-by-side page at /tools/amazon-lex-alternatives comparing Amazon Lex with the closest tools in the same category on price, platform and features.
Can I automate Amazon Lex-style transcription without running it myself?
Yes. If what you want is transcripts rather than the tool itself, Whipscribe does the same job as a hosted API: submit a file or URL, poll a job id, pull the result as txt, json, srt, vtt or docx. $0.012 a minute — about $0.72 an audio hour — bought as credits that never expire. The automation recipes on this site show it wired to Drive folders, Zoom recordings, S3 buckets and no-code platforms.
How is Whipscribe different from Amazon Lex?
Amazon Lex is another vendor's product; Whipscribe is a per-minute transcription service. Recordings are transcribed on our own servers and never used for training, and every job returns five formats plus an AI summary, quotes and topics. The first 20 minutes of any recording are transcribed free, and a pack from $6 (500 minutes) transcribes the rest and opens every export.
What does transcription cost if I use Whipscribe instead of Amazon Lex?
$0.012 a minute — about $0.72 an audio hour — bought as credits that never expire. There is no subscription and no monthly minimum: a 3-hour recording is about $2.16, a thousand-hour archive is about $720 once. The first 20 minutes of any recording are transcribed free, and a pack from $6 (500 minutes) transcribes the rest and opens every export, so you can see what your recording holds before paying anything.
Where is the Amazon Lex category heading?
Three things are moving across the whole speech-to-text market right now: summaries, action items and speaker insights generated on top of the transcript rather than sold separately; private, secured deployment where the audio never leaves a boundary you control; and agent access — transcription exposed as a tool that Claude, Cursor or a workflow runner can call directly. Whipscribe ships all three today: per-job insights, our own servers, and an MCP server.
Whipscribe is a hosted transcription service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.
Transcribe your recordings
Using Amazon Lex today? Send your next recording here and compare the transcript. Transcribe any language, any recording · Transcription services from $0.29 an hour · Transcribe from any meeting or recording platform · How to transcribe, step by step
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Have the recording already?
Skip the setup and send the file or the link: see how to transcribe an MP3 of any length, a podcast episode as text from its link and the SRT file generator.
Looking at paid options?
Before you choose a transcription tool or service: see how the best transcription services compare, affordable transcription priced per hour and our transcription service with prices and turnaround.