Seed 1.6 Flash
Seed 1.6 Flash (ByteDance Seed, 2025) is an image-generation model. Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of...
by ByteDance Seed · 262K token context window
Best for
- image generation from text
- creative design and ideation
Ways to use Seed 1.6 Flash in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your ByteDance Seed API key. osFoundry discovers Seed 1.6 Flash automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Seed 1.6 Flash vs similar models
| Model | Org | Params | Context | Input price | Self-host |
|---|
| Seed 1.6 Flash | ByteDance Seed | — | 262K | $ 0.075 /1M | API only |
| GPT-5.2-Codex | OpenAI | — | 400K | $ 1.75 /1M | API only |
| Kimi K2.5 | MoonshotAI | — | 262K | $ 0.400 /1M | API only |
| Gemini 3 Flash Preview | Google | — | 1049K | $ 0.500 /1M | API only |
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about Seed 1.6 Flash
How much does Seed 1.6 Flash cost?
Seed 1.6 Flash is metered at $ 0.075 /1M for input, and $ 0.300 /1M for output. Bring your own ByteDance Seed API key — osFoundry passes through provider pricing without markup.
Can I use Seed 1.6 Flash commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of Seed 1.6 Flash?
Seed 1.6 Flash supports a 262K token context window.
Can I run Seed 1.6 Flash locally?
No — Seed 1.6 Flash is hosted only and accessed via the ByteDance Seed API.
What is Seed 1.6 Flash best at?
Seed 1.6 Flash is well-suited to image generation from text, creative design and ideation.
How do I use Seed 1.6 Flash in osFoundry?
Paste your ByteDance Seed API key in the key dialog (or deploy the open weights for self-hostable models), assign Seed 1.6 Flash to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by ByteDance Seed on December 23, 2025. Source: https://openrouter.ai/bytedance-seed/seed-1.6-flash