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Lower latency, reduced prices, and our Java SDK release

This week AssemblyAI made major improvements to our API inference latency so that hour-long audio files transcribe in under 45 seconds, and with a Real-Time-Factor (RTF) of up to .008x.

Lower latency, reduced prices, and our Java SDK release

⚡️Lower Latency & Lower Costs

This week AssemblyAI made major improvements to our API inference latency so that hour-long audio files transcribe in under 45 seconds, and with a Real-Time-Factor (RTF) of up to .008x. Our testing showed the following typical transcription completion times for long duration audio files:

  • 1-hour (75MB) meeting in 35 seconds
  • 3-hour (191MB) podcast in 133 seconds
  • 8-hour (464MB) video course in 300 seconds

In addition to these improvements, we’ve substantially lowered our pricing to make our speech-to-text AI more affordable for developers. You can now access our Speech AI models with the below pricing:

  • Async Speech-to-Text for $0.37 per hour (previously $0.65) 
  • Real-time Speech-to-Text for $0.47 per hour (previously $0.75)

Check out our changelog for the latest product updates.

Free Tier Program Boosts

Our Free Tier Program is leveling up with the following new two benefits: 

  • Increased transcription limit: Transcribe up to 100 hours over the lifetime of your account.
  • Concurrency Upgrade: Handle up to 5 simultaneous transcription requests.

AssemblyAI Java SDK Release

The AssemblyAI Java SDK is now live! You can use the SDK to transcribe audio asynchronously or in real-time, use our audio intelligence models, and apply LLMs to your audio data using LeMUR. Here's how to transcribe an example audio file with the Java SDK and iterate through the transcript with labels for each speaker:

import com.assemblyai.api.AssemblyAI;
import com.assemblyai.api.resources.transcripts.types.*;

public final class App {
    public static void main(String[] args) {
        AssemblyAI client = AssemblyAI.builder()
                .apiKey("YOUR_API_KEY")
                .build();

        String url = "https://storage.googleapis.com/aai-web-samples/5_common_sports_injuries.mp3";

        var params = TranscriptOptionalParams.builder()
                .speakerLabels(true)
                .build();

        Transcript transcript = client.transcripts().transcribe(url, params);

        System.out.println(transcript.getText());

        transcript.getUtterances().ifPresent(utterances ->
            utterances.forEach(utterance ->
                System.out.println("Speaker " + utterance.getSpeaker() + ": " + utterance.getText())
            )
        );
    }
}

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