Gradium released a text-to-speech beta on September 22nd that it says produces first audio in under 50 milliseconds, a claim the company made in a two-post thread on X and that developers can test in …
Speechify released Simba 3.2 and Simba 3.0, text-to-speech models that cut time-to-first-audio to roughly 100ms on Coval's benchmark while keeping the same voices, quality, and per-character pricing. …
Gradium has made a new text-to-speech model the default for its API and Studio, claiming an 81.0% hard-case pass rate and 216 ms median time to first audio on Coval's TTS benchmark. The model, live si…
Gradium AI has released a new text-to-speech model, now the default across its API and Studio as of August 31, 2026, achieving an 81.0% human-rated pass rate on a 500-sentence hard-case set spanning f…
Palabra.ai claims the world's fastest text-to-speech latency at 104 ms time to first audio, based on an independent benchmark by Coval that ranks it ahead of ElevenLabs and Cartesia. The company says …
Gradium, a Paris-based voice AI startup backed by Nvidia, raised $100M to commercialize its audio-native language model that achieves sub-200ms latency, beating human conversation turn-taking baseline…
Coval raised $28 million in Series A funding to stress-test AI voice agents before they reach real callers. The San Francisco startup applies simulation techniques from autonomous vehicles to catch fa…
Coval, a voice AI evaluation platform, raised $28 million in Series A funding led by Norwest, with participation from Twilio Ventures and others, bringing total funding to $31 million. The company pro…
Coval, a San Francisco voice AI evaluation startup founded by former Waymo engineer Brooke Hopkins, raised a $28 million Series A led by Norwest to test voice AI systems with the same simulation-heavy…