How do their growth rates compare?

Soniox has a month-over-month growth rate of +2.2%; Speko has -7.9%.

How does pricing compare?

Soniox: Paid. Soniox is a paid API platform. Pricing is usage-based rather than a fixed consumer subscription, with plans and rates listed on its pricing page. There is no free consumer tier, so budget depends on your speech-processing volume and model choice. Speko: Paid, Contact for Pricing. Two models. On Speko infrastructure, a flat $0.09 per minute bundles STT, LLM and TTS; calls bill from answer to hang-up and unanswered calls cost nothing. With managed routing, you pay the selected provider's published rate plus 5%. $10 in signup credit applies to every account. Phone numbers cost $1 setup and $2 per month for most numbers, and calls on Speko numbers add the carrier charge plus 20%.

What are alternatives to Soniox and Speko?

Other tools in related categories include ElevenLabs, Fish Audio, MiniMax Audio, Cartesia, Deepgram Voice AI.

Soniox vs Speko — Traffic (335.65K vs 20.95K), Pricing & Verdict

Open AI Tools

Soniox vs Speko — Traffic (335.65K vs 20.95K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Soniox	Speko
Official Domain	soniox.com	speko.ai
Pricing Model	Paid	Paid, Contact for Pricing
Monthly Visits	335.65K (335,647)	20.95K (20,954)
MoM Traffic Delta	+7.29K (+2.2%)	-1.8K (-7.9%)
Primary Market & Share	🇺🇸 United States (12.5%)	🇺🇸 United States (62.2%)
Direct Visits / mo	181.75K	5.93K
User Rating	4.5	4.4
Supported Platforms	Website	Website

Soniox

One speech AI API for recognition, generation, and translation in 60+ languages

Real-time speech-to-text

Soniox STT delivers high accuracy across 60+ languages, accents, numbers, names, and domain vocabulary, engineered for fast multi-speaker conversations and noisy environments.

Text-to-speech and voice cloning

Generate expressive speech in 60+ languages with audio tags, alphanumeric accuracy, seamless language switching, 200+ built-in voices, and instant voice cloning.

Real-time speech translation

Translate speech in real time across roughly 3,600 language pairs, with low-latency output that starts before a sentence finishes and handles mid-sentence language switching.

Low-latency streaming

Streaming models transcribe speech and start generating audio from the first few words, keeping interaction fast enough for live voice agents and captions.