---
id: "zyphra/zonos-v0.1-transformer"
also: ["zyphra/zonos-v0.1-transformer"]
cheapest_list_usd_per_m: "7.0 in, 0.0 out, at deepinfra on openrouter"
context: 4096
input: ["text"]
output: ["speech"]
released: "2026-04-23"
params: ["frequency_penalty", "max_tokens", "min_p", "presence_penalty", "repetition_penalty", "response_format", "seed", "stop", "temperature", "top_k", "top_p"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 0
trains: 0
retains_prompts: 0
---
# Zyphra: Zonos v0.1 Transformer

Zonos v0.1 Transformer is a text-to-speech model from Zyphra built on a pure transformer architecture. It offers the same American and British English voice coverage as the Hybrid variant, and...