Features
- Generates speech with ultra-low latency of 100ms
- Produces natural prosody, intonation and breath patterns
- Clones a voice from about 10 seconds of audio
- Supports 15+ languages including Indic languages and code-mixing
- Offers a simple REST API
- Outputs MP3, WAV, PCM and mulaw formats
- Complies with SOC 2, HIPAA and GDPR without training on user data
Pricing Details
💵 Pricing & Plans (April 2026 Status): Lightning uses a highly aggressive "Pay-as-you-go" pricing model to undercut traditional providers. Plan Price (Approx.) Key Features Free Tier $10 Free Credits No strings attached; Full access to V3.1 features for testing. Pay-As-You-Go $0.02 per minute ~$0.01 per 1k characters; Ultra-low latency; All 15+ languages. Enterprise Custom Quote 99.99% Uptime SLA; SOC 2/HIPAA compliance; Dedicated concurrency. 🎁 How to Get Started: Visit smallest.ai/text-to-speech to try their live playground. You can upload a 10-second clip to test the instant cloning feature or use their API docs to integrate the "100ms" engine into your own voicebot or application.