---
title: "The Router for Voice AI"
description: "Hosted Router for managed STT, LLM and TTS routing, plus an open customer-side Gateway for provider-direct voice workloads."
canonical: "https://speko.ai/"
last-updated: "2026-08-24"
---
> ## Speko page index
> The complete index of every page on this site is at: https://speko.ai/llms.txt
> Read it before exploring further. It lists the exact Markdown URL for every canonical HTML page.
# The Router for Voice AI
[Backed by Y Combinator](https://www.ycombinator.com/companies/speko)
Every speech model, benchmarked language by language, wired into one API.
[Get API key](https://platform.speko.ai/sign-in)
## Router
A hosted, provider-neutral STT, LLM and TTS data plane at relay.speko.dev, with typed contracts and managed routing.
### Benchmark coverage by language
Model EN (English) AR (Arabic) FR (French) DE (German) HI (Hindi) NB (Norwegian) ES (Spanish) TA (Tamil) TE (Telugu)
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-1 bench
Scribe v2 Realtime
Solaria-1
Universal-3.5 Pro
Velma 2
Flux
GPT Live Transcribe
Hover a cell for its number.
worse better
11 of 23
are only measured in English
Their rank in any other language is unknown — including the model that sits at the top of the English table.
4
different models win across 9 languages
No single model is best everywhere, so the right pick changes with the language your users speak.
### Score against cost, per stage
Accuracy (WER)
$0.0010 $0.0160 2.0% 11.0%
Realtime STT-1 3.3% · $0.0025
Universal-3.5 Pro 2.0% · $0.0075
Velma 2 4.4% · $0.0010
GPT-4o Transcribe 2.3% · $0.0060
GPT-4o-mini Transcribe 2.7% · $0.0030
Cost ($/min)
\# Model
1
Universal-3.5 Pro assemblyai:universal-3-5-pro
2.0% $0.0075 (Universal-3.5 Pro Realtime at $0.45/hr. Async pre-recorded is $0.0035. Diarization and other add-ons bill on top.)
2
GPT-4o Transcribe openai:gpt-4o-transcribe
2.3% $0.0060
3
GPT-4o-mini Transcribe openai:gpt-4o-mini-transcribe
2.7% $0.0030
4
Qwen3-ASR alibaba:qwen3-asr-flash
2.8% $0.0054 (qwen3-asr-flash-realtime, Singapore. The file/sync SKU is $0.0021.)
5
Realtime STT-1 inworld:inworld-stt-1
3.3% $0.0025 (On-demand $0.15/hr. The $0.10/hr headline needs a paid Creator subscription.)
6
Chirp 3 google:chirp_3
3.9% $0.0160 (Speech-to-Text V2 Standard, first tier — one rate for streaming, sync and batch. Dynamic Batch Recognition is $0.003.)
7
Velma 2 modulate:velma-2-stt-streaming-english-v2
4.4% $0.0010 (Published streaming rate, $0.06/hr. Batch is $0.03/hr. Not a measurement.)
8
Grok STT xai:stt
4.8% $0.0033 (grok-stt streaming at $0.20/hr. REST is $0.0017.)
9
Solaria-1 gladia:solaria-1
5.0% $0.0125 (Starter pay-as-you-go real-time ($0.75/hr). Pre-recorded is $0.0102/min, and committed Growth pricing goes to $0.0042.)
10
Pulse smallest:pulse
5.1% ~$0.0050 (Streaming Pulse. The vendor never publishes an exact rate, and its own pricing page contradicts this model page with ~$0.009/min.)
11
stt-rt-v5 soniox:stt-rt-v5
7.5% $0.0020
12
Gradium ASR gradium:default
8.4% $0.0104 (3 credits/sec on the XS tier, the cheapest paid plan; $0.0068 at the L tier.)
13
Nova-3 deepgram:nova-3
9.8% $0.0048 (Streaming pay-as-you-go. Vendor flags it as a limited-time promotional rate; pre-recorded is $0.0043.)
14
Ink-2 cartesia:ink-2
11.0% $0.0090 (Ink-2 bills 3 credits/sec on Pro, the cheapest paid plan; $0.0071 at Startup, $0.0067 at Scale. The 1 credit/sec rate is Ink-Whisper, a different model.)
—
Flux deepgram:flux-general-en
— $0.0065 (Flux English streaming pay-as-you-go. Vendor flags it as a limited-time promotional rate; flux-general-multi is $0.0078.)
—
Scribe v2 Realtime elevenlabs:scribe_v2_realtime
— $0.0065 (Scribe v2 Realtime at $0.39/hr, flat across every tier. Batch Scribe v2 is $0.0037.)
—
GPT Live Transcribe openai:gpt-live-transcribe
— $0.0170 (gpt-live-transcribe, the streaming path this row is recommended for.)
## 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.
```python
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
```bash
$ claude mcp add --transport http speko https://mcp.speko.ai/mcp
```
[Read the docs](https://docs.speko.ai) [Get API key](https://platform.speko.ai/sign-in)