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Smallest AI Lightning TTS

smallest.ai

From $0.18/mo Free plan WebiOSAndroidAPISelf-hosted
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Spec score 8.8 #27 of 233 in Text-to-speech tools

Spec sheet

Purpose
Lightning turns written text into natural, expressive audio for production use.Read 12 Oct 2026 · smallest.ai
Intended users
The model card describes Lightning v3.1 as suited to real-time voice agents and products needing many voices, trained language catalogs, or instant cloning.Read 12 Oct 2026 · docs.smallest.ai
Platforms
web,apiRead 20 Sep 2026 · smallest.ai
Integrations
Listed integrations include LiveKit, Pipecat, Agno, Vapi, n8n, TrueFoundry AI Gateway, Vonage, Plivo, and SignalWire.Read 12 Oct 2026 · smallest.ai
Support
The model card directs users to Discord for community support and [email protected] for account and billing questions.Read 12 Oct 2026 · docs.smallest.ai
API access
YesRead 20 Sep 2026 · smallest.ai
Company headquarters
Smallest's pricing page lists its address as 311 California Street, Suite 320, San Francisco, California 94104.Read 12 Oct 2026 · smallest.ai
Export formats
PCM,WAV,MP3,μ-law,A-lawRead 20 Sep 2026 · smallest.ai
Known limitation
The model card says transliterated mixed-language text may produce suboptimal results and recommends using each language's native script.Read 12 Oct 2026 · docs.smallest.ai
Languages
20Read 20 Sep 2026 · smallest.ai
Languages
The model card lists 12 languages with trained voices and 20 accepted language codes plus automatic routing.Read 12 Oct 2026 · docs.smallest.ai
Latency
The product page says Lightning TTS delivers studio-quality speech at sub-100ms latency.Read 12 Oct 2026 · smallest.ai
Pronunciation control
Custom pronunciation dictionaries can handle specialized vocabulary, brand names, and domain-specific terms.Read 12 Oct 2026 · docs.smallest.ai
Security and compliance
Smallest's trust center lists ISO 27001:2022, SOC 2 Type II, HIPAA, GDPR, and PCI DSS, with reports available by request.Read 12 Oct 2026 · security.smallest.ai
Streaming and formats
The model supports HTTP, SSE, and WebSocket streaming, with PCM, MP3, WAV, ulaw, and alaw output formats.Read 12 Oct 2026 · docs.smallest.ai
Use cases
The model card lists voice assistants, chatbots, live narration, accessibility tools, gaming, telephony, podcasts, and audiobooks as use cases.Read 12 Oct 2026 · docs.smallest.ai
Voice cloning
Lightning v3.1 supports instant voice cloning from 5–15 seconds of audio.Read 12 Oct 2026 · docs.smallest.ai
Voice data handling
The model card says voice cloning requires explicit consent, synthesized audio is not retained, and personal voice data is not stored beyond the cloning scope.Read 12 Oct 2026 · docs.smallest.ai

Plans and prices

Lightning V3.1 Pay as you go $0.18 a month Standard Lightning v3.1 TTS pool Read 20 Sep 2026 · smallest.ai
Lightning V3.1 Pro Pay as you go $0.20 a month Premium Lightning v3.1 Pro TTS pool Read 20 Sep 2026 · smallest.ai
Lightning V3.1 Enterprise Price not published Custom pricing · Enterprise support and security options Read 20 Sep 2026 · smallest.ai
Lightning V3.1 Pro Enterprise Price not published Custom pricing · Enterprise support and security options Read 20 Sep 2026 · smallest.ai
Pay as you go Free Start with $10 in free credits; pay only for what you use, with no commitments or long-term contracts. Full access to APIs and models · usage-based pricing · no monthly commitment Read 12 Oct 2026 · smallest.ai
Enterprise plan Priced on request Tailored pricing for teams operating at scale. Dedicated infrastructure and enterprise-grade SLAs · priority support · advanced security, SSO, and compliance support Read 12 Oct 2026 · smallest.ai

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