AssemblyAI and Cartesia split voice agents by layer
AssemblyAI and Cartesia now compete across speech synthesis, transcription and orchestration, with different language coverage, pricing and benchmarks.
AssemblyAI says Sync HTTP has a niche role beside streaming STT
AssemblyAI argues Universal-3.6 Pro Realtime should remain the default for voice agents, with Sync HTTP used for second passes and recovery.
AssemblyAI details voice agent build with STT, LLM Gateway and TTS
AssemblyAI published a build guide showing how its streaming speech-to-text, LLM Gateway and text-to-speech services can power one voice agent loop.
AssemblyAI details a compliant AI cold-calling agent build
AssemblyAI outlined a structured outbound voice agent using Twilio, Universal-3.6 Pro Realtime, LLM Gateway and Text-to-Speech.
AssemblyAI details Agora voice-agent tutorial with STT, TTS and barge-in
AssemblyAI published a tutorial for building a server-side Agora voice agent using Universal-3.6 Pro Realtime, LLM Gateway and Text-to-Speech.
AssemblyAI details Voice Standard Bench picks for transcript correction
AssemblyAI says Voice Standard Bench ranks LLMs for transcript correction across four lengths, balancing faithfulness, readability, speed and cost.
Small LLMs stay competitive on short transcripts, then fade at meeting length
AssemblyAI's benchmark found small models close to larger ones on short calls, but less reliable on longer meetings and harder extraction tasks.
AssemblyAI details voice-agent load testing before launch
AssemblyAI says voice agents should be tested on worst-case telephony audio, peak concurrency, and billable session handling before launch.
AssemblyAI Launches Voice Standard Bench to Rank 50+ LLMs on Real Audio Tasks
AssemblyAI releases Voice Standard Bench, scoring over 50 language models on transcription post-processing tasks across quality, speed and cost metrics, with open-source framework available.
How to Select the Ideal Speech-to-Text API in 2026
A detailed guide on evaluating speech-to-text APIs in 2026, focusing on accuracy, cost, language support, and compliance.