Company records / assemblyai.com
AssemblyAI AssemblyAI (assemblyai.com ): 14 changes recorded in its website history since August 2017. Homepage last checked 5 November 2026.
First recorded website Recorded changes Messaging history Cite this record Report a correction
Recorded changes Newest observations first. Each interval bounds when the website changed; it is not an exact event date.
Dropped its free sign-up; visitors are now asked to book a demo.
Observed on the company’s website; business claims are not independently verified.
Headline Between 28 October 2026 and 5 November 2026
Before Voice AI infrastructure for builders
After Industry leading voice models. Infrastructure built to run them.
Observed on the company’s website; business claims are not independently verified.
New logos Between 5 July 2026 and 28 October 2026
Added logos to its homepage: Retell, CallRail, Apollo.io, ClickUp, HeyGen and JotPsych.
Observed on the company’s website; business claims are not independently verified.
Headline Between 2 November 2025 and 5 July 2026
Before The best way to build Voice AI apps
After Voice AI infrastructure for builders
Observed on the company’s website; business claims are not independently verified.
Headline Between 1 August 2025 and 2 November 2025
Before Speech-to-text to powerful outcomes
After The best way to build Voice AI apps
Observed on the company’s website; business claims are not independently verified.
Headline Between 2 July 2024 and 8 July 2025
Before Turn voice data into with our leading Speech AI models
After Speech-to-text to powerful outcomes
Observed on the company’s website; business claims are not independently verified.
Headline Between 1 July 2023 and 2 July 2024
Before Access powerful AI models to transcribe and understand speech
After Turn voice data into with our leading Speech AI models
Observed on the company’s website; business claims are not independently verified.
Headline Between 3 July 2022 and 1 July 2023
Before Transcribe and understand audio with a single AI-powered API
After Access powerful AI models to transcribe and understand speech
Observed on the company’s website; business claims are not independently verified.
Hiring Between 20 July 2021 and 3 July 2022 Added a careers page.
Observed on the company’s website; business claims are not independently verified.
Headline Between 20 July 2021 and 3 July 2022
Before The Speech-to-Text API for modern developers
After Transcribe and understand audio with a single AI-powered API
Observed on the company’s website; business claims are not independently verified.
Headline Between 2 August 2020 and 20 July 2021
Before #1 Most Accurate Speech-to-Text API
After The Speech-to-Text API for modern developers
Observed on the company’s website; business claims are not independently verified.
Added a free sign-up or free trial.
Observed on the company’s website; business claims are not independently verified.
Closed its waitlist and opened sign-up.
Observed on the company’s website; business claims are not independently verified.
Headline Between 22 August 2017 and 20 July 2018
Before Speech Recognition for Everyone and Everything.
After The world's most advanced Speech-to-Text, customized for your application.
Observed on the company’s website; business claims are not independently verified.
First recorded website Observed 22 August 2017
Our earliest capture with readable facts. This is our first observation, not when the company introduced these things. These website claims are not independently verified.
How it described itself Speech Recognition for Everyone and Everything. Build products people can talk to.
archived page Link to first observation
All facts above belong to this capture. Unlisted fields mean we have no readable observation, not that they were absent.
How it describes itself Similar headlines are grouped together. The quote shown is from the last capture in each group, not necessarily the exact wording throughout that period.
July 2026 – November 2026 · 3 captures · latest observed messaging Industry leading voice models. Infrastructure built to run them. With AssemblyAI's industry-leading Speech AI models, transcribe speech to text and extract insights from your voice data.
This wording observed 5 November 2026.
Inspect 3 captures in this group 5 July 2026 · Voice AI infrastructure for builders archived page 28 October 2026 · Voice AI infrastructure for builders archived page 5 November 2026 · Industry leading voice models. Infrastructure built to run them. current website Historical capture not publicly available Seen November 2025 · 1 capture The best way to build Voice AI apps With AssemblyAI's industry-leading Speech AI models, transcribe speech to text and extract insights from your voice data.
This wording observed 2 November 2025.
July 2025 – August 2025 · 2 captures Speech-to-text to powerful outcomes With AssemblyAI's industry-leading Speech AI models, transcribe speech to text and extract insights from your voice data.
This wording observed 1 August 2025.
Inspect 2 captures in this group Seen July 2024 · 1 capture Turn voice data into with our leading Speech AI models With AssemblyAI's industry-leading Speech AI models, transcribe speech to text and extract insights from your voice data.
This wording observed 2 July 2024.
Seen July 2023 · 1 capture Access powerful AI models to transcribe and understand speech AssemblyAI is the fastest way to build with AI for audio. With a simple API, get access to production-ready AI models to transcribe and understand speech.
This wording observed 1 July 2023.
Seen July 2022 · 1 capture Transcribe and understand audio with a single AI-powered API Accurately convert speech to text with powerful AI models. Used by Fortune 500s, startups, and developers. Voted Best API of 2020, and funded by Accel and Y Combinator.
This wording observed 3 July 2022.
August 2020 – July 2021 · 2 captures The Speech-to-Text API for modern developers Top-ranked speech-to-text API in accuracy. Simple to setup and integrate into any application. Trusted by thousands of developers using automated speech recognition (Python, Node, C#, Ruby, PHP, curl,
This wording observed 20 July 2021.
Inspect 2 captures in this group 2 August 2020 · #1 Most Accurate Speech-to-Text API archived page 20 July 2021 · The Speech-to-Text API for modern developers archived page Seen July 2019 · 1 capture High accuracy Speech-to-Text, powered by state of the art deep learning. This wording observed 19 July 2019.
Seen July 2018 · 1 capture The world's most advanced Speech-to-Text, customized for your application. This wording observed 20 July 2018.
Seen August 2017 · 1 capture Speech Recognition for Everyone and Everything. Build products people can talk to.
This wording observed 22 August 2017.
Cite this record StartupHistory, “AssemblyAI” company record, https://startuphistory.org/c/assemblyai.com
Machine-readable: /c/assemblyai.com.json . How changes are found: method .