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ByteDance Seed: Seed Audio 1.0

Source description (English)

Seed Audio 1.0 is ByteDance Seed's non-streaming audio generation model. It produces speech and other audio from a natural-language text prompt that can describe the desired voice, tone, and sound...

View source on OpenRouter
Overview

Model specifications

Context
Not provided
Maximum output
Not provided
Architecture
text->speech
Tokenizer
Other
Knowledge cutoff
Not provided
Moderated
No
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Audio Output
$0.15
per minute
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

Choose a supported voice. Replace YOUR_VOICE_ID if no voice is listed.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/audio/speech \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"bytedance-seed/seed-audio-1-0","input":"Hello!","voice":"YOUR_VOICE_ID","response_format":"mp3"}' \
  --output speech.mp3
Capabilities

Input → Output

Input
text
Output
speech
API

Supported API parameters

Available providers

1 Provider

Checked: September 26, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Seed

Not provided
Context
Not provided
Maximum output
Not provided
bytedance-seed

4 models

All models
bytedance-seed logobytedance-seed

ByteDance Seed: Seedream 5.0 Lite

Seedream 5.0 Lite is an image generation model from ByteDance Seed. It is suited for professional visual creation that benefits from web-connected retrieval, complex-prompt comprehension, visual references, and broad knowledge...

Context
Not provided
Input
text · image
Output
image
Image input: Free per imageImage output: $0.035 per image
View model details →
bytedance-seed logobytedance-seed

ByteDance Seed: Seedream 5.0 Pro

Seedream 5.0 Pro is an image generation and editing model from ByteDance Seed. It is suited for commercial visual-production workflows that require precise editing control, lifelike scenes, and natural rendering.

Context
Not provided
Input
text · image
Output
image
Image input: $0.003 per imageImage output: $0.045 per image
View model details →
bytedance-seed logobytedance-seed

ByteDance Seed: Seed 2.1 Turbo

Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and...

Context
262K
Input
text · image · video
Output
text
Input: $0.5Output: $2.5per 1M tokens
View model details →
bytedance-seed logobytedance-seed

ByteDance Seed: Seed-2.0-Code

Seed 2.0 Code is a model from ByteDance Seed optimized for agentic coding. It is suited for frontend development, multilingual programming tasks, and coding-agent workflows in tools such as Claude...

Context
262K
Input
text · image · video
Output
text
Input: $0.5Output: $3per 1M tokens
View model details →