---
name: S2.1 Pro
slug: s2-1-pro
type: Multimodal
providers:
  - vercel
description: 'Speech generation model for controllable voice, narration, and audio delivery'
tags:
  - o
  - multimodal
is_open_source: false
release_date: '2026-07-28'
capabilities:
  audio: false
  vision: false
  tool_use: false
  citations: false
  reasoning: false
---
S2.1 Pro is a Multimodal model.
Speech generation model for controllable voice, narration, and audio delivery