Speko
AI voice model router — one API to compare, route, and switch between dozens of STT, TTS, and LLM models
| What is it | AI voice model router — one API to compare, route, and switch between dozens of STT, TTS, and LLM models |
|---|---|
| Pricing | Paid |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Works with | Claude AI, n8n |
| Best for | Building voice assistants and conversational AI agents, Real-time multilingual speech transcription and translation |
| Domain registered | 2026 |
Data updated Sept. 19, 2026
What does Speko do?
Speko is a voice AI router that gives you one API to access dozens of speech-to-text, text-to-speech, and language models from different providers. Instead of signing up for each service separately, you connect to Speko and get a unified interface with live benchmarks for each model across languages. The page shows a detailed comparison table with Word Error Rates and cost per minute for models like Nova-3, GPT-4o Transcribe, Chirp 3, and many more — so you know exactly what you're getting before you write a single line of code.
How it works: you grab an API key, then call models from Deepgram, OpenAI, Google, AssemblyAI, ElevenLabs, and others through a single endpoint. Speko also offers a Gateway that plugs directly into LiveKit and Pipecat, making it straightforward to build real-time voice agents with minimal boilerplate. The router handles credential management, routing logic, and even provides OpenAPI and AsyncAPI contracts for programmatic control. The Gateway lets you keep your own provider credentials locally while optionally using Speko-managed routes for smart model selection.
This tool is built for developers who need to compare model performance across languages or balance cost against accuracy. If you're creating multilingual voice bots, transcription pipelines, or speech-to-speech applications, Speko saves you the integration work of wiring up multiple providers. Y Combinator backs it, and the documentation is publicly available — you can start testing models right away.
Key features
What makes it stand outWho is Speko for?
Who benefits most from this toolPricing
Router
- 5% on provider's rate surcharge
- Speech-to-text, LLM, TTS: The provider's published rate
- Routing: Measured selection and pre-response failover
- Access: Public preview
- Support: Email
- SLA: None during preview
- Commitment: None
Speko infra
- 0.09 rate per minute
- Speech-to-text, LLM, TTS: Included
- Routing: Measured selection and pre-response failover
- Access: Public preview
- Support: Email
- SLA: None during preview
- Commitment: None
Enterprise
- Committed monthly minimum commitment
- Speech-to-text, LLM, TTS: Included
- Routing: Plus deployment reviews
- Access: By contract
- Support: Dedicated
- SLA: In the contract
- Commitment: Committed monthly minimum
Trust & presence
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