WowHow Blogs

Google launched Gemini 3.1 Flash TTS on April 15, 2026 — and it may be the most expressive and controllable text-to-speech API available today. With 200+ audio emotion tags, native multi-speaker dialogue, 70+ language support, and SynthID watermarking built in, here is everything developers need to know before building with it. Continue reading the full article on WowHow → Originally published at https://wowhow.cloud/blogs/gemini-3-1-flash-tts-developer-guide-2026

xAI released Grok 4.3 Beta on April 17, 2026, adding three major capabilities: native document generation (PDFs, spreadsheets, slide decks), conversational video understanding, and standalone Speech-to-Text and Text-to-Speech APIs priced significantly below every comparable service on the market. Continue reading the full article on WowHow → Originally published at https://wowhow.cloud/blogs/grok-4-3-beta-developer-guide-video-docs-voice-api-2026

Mistral just released Voxtral TTS — an open-weight 4B text-to-speech model with 90ms latency, zero-shot voice cloning from 2 seconds of audio, and human evaluation scores that outperform ElevenLabs Flash v2.5. You can run it yourself, for free. Continue reading the full article on WowHow → Originally published at https://wowhow.cloud/blogs/mistral-voxtral-tts-open-source-beats-elevenlabs-2026