xAI launched Grok Voice API offering speech-to-text and text-to-speech, positioning on price and accuracy against ElevenLabs and OpenAI.
xAI has launched Grok Voice API, offering both Speech-to-Text (STT) and Text-to-Speech (TTS) capabilities via API. The product is positioned around competitive pricing and accuracy, entering a crowded market dominated by ElevenLabs, OpenAI Whisper, and Google Cloud Speech. The launch appeared on Product Hunt, suggesting public availability. No detailed pricing tiers or benchmark numbers were disclosed in the announcement.
Grok Voice API adds xAI to the STT/TTS vendor pool, which means you now have a legitimate price-leverage play against ElevenLabs and OpenAI Whisper. If xAI's accuracy holds at a lower cost-per-minute, it's a direct swap candidate for any audio transcription or voice synthesis pipeline. No published WER benchmarks yet, so blind trust is unwarranted — test it against your actual audio samples, not their marketing copy.
Pull 10 real audio samples from your current transcription workload, run them through Grok STT and your existing provider, compare WER and cost-per-hour — if Grok beats on both, swap the endpoint this sprint.
Navigate to x.ai/api and grab your API key from the dashboard
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