The Router for Voice AI

Every speech model, benchmarked language by language, wired into one API.

Get API key

Router

A hosted, provider-neutral STT, LLM and TTS data plane at router.speko.dev, with typed contracts and managed routing.

Benchmark coverage by language

Model

Nova-3

stt-rt-v5

GPT-4o Transcribe

GPT-4o-mini Transcribe

Qwen3-ASR

Chirp 3

Ink-Whisper

Pulse Pro

Whisper-1

Nova-2

Gradium ASR

Grok STT

Ink-2

Pulse

Realtime STT-1bench

Scribe v2 Realtime

Solaria-1

Universal-3.5 Pro

Velma 2

Flux

GPT Live Transcribe

Muse Voice Transcribe

Score against cost, per stage

Accuracy (WER)

$0.0010$0.01602.0%12.0%

Realtime STT-13.3% · $0.0025

Universal-3.5 Pro2.0% · $0.0075

Velma 24.4% · $0.0010

GPT-4o Transcribe2.3% · $0.0060

GPT-4o-mini Transcribe2.7% · $0.0030

Cost ($/min)

#Model

Universal-3.5 Proassemblyai:universal-3-5-pro

2.0%$0.0075

GPT-4o Transcribeopenai:gpt-4o-transcribe

2.3%$0.0060

GPT-4o-mini Transcribeopenai:gpt-4o-mini-transcribe

2.7%$0.0030

Qwen3-ASRalibaba:qwen3-asr-flash

2.8%$0.0054

Realtime STT-1inworld:inworld-stt-1

3.3%$0.0025

Chirp 3google:chirp_3

3.9%$0.0160

Velma 2modulate:velma-2-stt-streaming-english-v2

4.4%$0.0010

Grok STTxai:stt

4.8%$0.0033

Solaria-1gladia:solaria-1

5.0%$0.0125

Pulsesmallest:pulse

5.1%~$0.0050

stt-rt-v5soniox:stt-rt-v5

7.5%$0.0020

Gradium ASRgradium:default

8.4%$0.0104

Ink-2cartesia:ink-2

11.0%$0.0090

Nova-3deepgram:nova-3

12.0%$0.0048

—

Fluxdeepgram:flux-general-en

—$0.0065

—

Scribe v2 Realtimeelevenlabs:scribe_v2_realtime

—$0.0065

—

GPT Live Transcribeopenai:gpt-live-transcribe

—$0.0170

—

Muse Voice Transcribemeta:muse-voice-transcribe-1.0

—$0.0030

—

Gemini 3.5 Transcribe Livegemini:gemini-3-5-transcribe-live

—~$0.0090

Gateway

The open customer-side runtime for LiveKit and Pipecat: provider-direct streaming, local BYOK credentials and optional Speko-managed routes.

Run and observe your voice workers

Use the native Gateway integrations in your framework, or call the hosted Router through its public OpenAPI and AsyncAPI contracts.

from livekit.agents import AgentSession
from speko_gateway.livekit import LLM, STT, TTS

session = AgentSession(
    stt=STT(credential_source="auto"),
    llm=LLM(model="auto", objective="balanced"),
    tts=TTS(credential_source="auto"),
)

Point your agent at Speko

$claude mcp add --transport http speko https://mcp.speko.ai/mcp

Read the docs Get API key