If you're looking for a ResponsiveVoice alternative, ElevenLabs is another top contender. It's got high-quality AI text to speech in 29 languages with more than 120 voices, good for content creation, games and audiobooks. The service also offers advanced features like voice cloning, fine-tuning and long-form voice generation. It offers a free plan with limited features and several paid options starting at $5 per month, so it's got something for everybody.
Another good option is BeyondWords, which has a more complete text-to-speech service with more than 550 AI voices across 140 language locales. It supports voice cloning and has more advanced tools for managing audio content, including production, distribution and analytics. Its pricing options, including a free Pilot plan, are good for everything from blogs to e-learning materials.
If you're looking for something relatively easy to use and accessible, Voicera is worth a look. It supports more than 10 languages and has automatic content detection, voice generation and lightweight embeds. Its pay-as-you-go pricing is flexible, so it's good for content creators who want to add some engagement and accessibility without a lot of hassle.