bytedance-seed logo
bytedance-seed

ByteDance Seed: Seedream 4.5

Seedream 4.5 is the latest in-house image generation model developed by ByteDance. Priced at $0.04 per image. 4,096 token context window. Includes independent benchmarks from Artificial Analysis.

Overview

Model specifications

Context
4,096 tokens
Maximum output
3,686 tokens
Architecture
text+image->image
Tokenizer
Other
Knowledge cutoff
Not provided
Moderated
No
OPENROUTER

Complete pricing

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

Image
$0.04
/image
API

Quick start

Call this exact model ID through OpenRouter’s OpenAI-compatible API.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"bytedance-seed/seedream-4.5","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

InputOutput

Input
imagetext
Output
image
API

Supported API parameters

frequency_penaltymax_tokenstemperaturetop_p
Available providers

1 Provider

Live providers on OpenRouter

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

OpenRouter

Seed

unknown
Context
4K
Maximum output
4K
Input
Free
Output
Free
Cache read
Not provided
Cache write
Not provided
bytedance-seed

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
Input: FreeOutput: Freeper 1M tokens
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
Input: FreeOutput: Freeper 1M tokens
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: $0.500Output: $2.50per 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: $0.500Output: $3.00per 1M tokens
View model details