Rumik Silk - 2026 Pricing, Features, Reviews & Alternatives

rumik silk is a cloud-based text-to-speech API and AI voice generation platform that converts text into natural, expressive speech across 22 Indian and English languages, including Hindi, Tamil, Telugu, Bengali, Marathi, Hinglish, and English. Delivered via HTTP and real-time WebSocket streaming, rumik silk targets product teams, developers, call centres, e-learning platforms, media producers, and consumer app builders requiring high-quality multilingual speech output at scale. A browser-based playground supports no-code audio generation for evaluation and prototyping, while Python and JavaScript SDKs serve integration-focused teams.

rumik silk ships a family of AI voice models with distinct capability profiles. Silk Mulberry delivers 162 ms time-to-first-audio for live conversational use cases such as IVR and voice agents, and accepts plain-language voice descriptions to control speaker age, accent, pitch, timbre, pace, emotion, and register per request. Silk Muga provides fine-grained expressive control through inline tone tags ([happy], [sad], [angry], [excited], [whisper], [neutral]) and vocal events such as laugh and sigh. Silk Spider, the most advanced model in the family, is available via early access. Across all models, code-switching maintains a consistent voice when scripts alternate between languages mid-sentence, and built-in text normalization handles Indian-specific formats including rupee amounts, lakh/crore values, and day-first dates without additional preprocessing.

Audio output is delivered at 24 kHz across six formats: WAV, Opus, PCM, Mulaw, Alaw, and MP3. The platform offers 12 voice presets and 21 accent options spanning Indian, American, British, Middle Eastern, and Asian-American variants. Voice agent deployment is supported through Pipecat and LiveKit integrations. Pricing includes pay-as-you-go access starting at 0.50 per 1,000 characters (India) with no subscription requirement, and unlimited monthly plans billed by concurrent request capacity for high-volume workloads. An open-source model, rumik-oss 1, is available for research and non-commercial experimentation.