How much does Seed 1.6 Flash cost?

Billing is usage-based: $0.075 per million input tokens and $0.3 per million output tokens. There is no monthly minimum. You pay only for the tokens you actually use.

How do I access Seed 1.6 Flash from inside Iran?

Create a Hormouz account, generate an API key and point your client at Hormouz. Access to Seed 1.6 Flash is served from inside Iran, so you do not need a foreign credit card, a VPN or any sanction-circumvention tooling.

Is Seed 1.6 Flash compatible with the OpenAI SDK?

Yes. Hormouz exposes an OpenAI-compatible chat-completions API. Change the base URL to Hormouz and drop in your Hormouz key, and existing OpenAI SDK code runs unchanged.

What context window does Seed 1.6 Flash support?

Seed 1.6 Flash supports a context window of up to 262K tokens, which is enough for long documents and extended conversations in a single request.

How is Seed 1.6 Flash different from Seed 1.6?

Flash is the faster, cheaper variant. It shares multimodal input and the 256K context window with Seed 1.6 but is tuned for low latency and cost, which suits high-volume traffic. The full Seed 1.6 aims for higher quality on harder tasks.

ByteDance Seed: Seed 1.6 Flash: AI model

Seed 1.6 Flash is ByteDance Seed's ultra-fast multimodal model with a 256K context window at a low cost. Served from inside Iran through Hormouz.

Context window:: 262,144 tokens
Input:: $0.07/1M tokens
Output:: $0.3/1M tokens
Type:: text, image, video

Vision
Tools
Streaming
Long context

Thinking levels:

Seed 1.6 Flash is the ultra-fast member of ByteDance Seed's 1.6 line. It keeps the deep-thinking and multimodal understanding of Seed 1.6 but is tuned for low latency and low cost, making it a good default for high-volume production traffic.

It accepts text, image and video input, returns text, and supports a 256K-token context window with outputs of up to about 32K tokens. Tool calling and structured output are supported, so it works for fast multimodal assistants and lightweight agents where responsiveness matters.

On Hormouz, Seed 1.6 Flash is served behind an OpenAI-compatible API and reachable from inside Iran without a foreign card. Billing is usage-based at $0.075 per million input tokens and $0.30 per million output tokens. Much cheaper than the full Seed 1.6.

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...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-1.6-flash",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	ByteDance Seed
Type	Text, Image, Video
Context window	262,144 tokens
Pricing	$0.07/M in · $0.30/M out
API	Chat Completions
Capabilities	Streaming · Vision · Tools

Code example

cURL

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-1.6-flash",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="bytedance-seed/seed-1.6-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "bytedance-seed/seed-1.6-flash",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the ByteDance Seed: Seed 1.6 Flash API, paid in rial

Buy credit with an Iranian bank card; no foreign card or account needed.
One Hormouz key reaches ByteDance Seed: Seed 1.6 Flash and 600+ other models, and you pay only for what you use.
No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.

Create an account

Use via Hormouz

Connect to this model and 600+ others with one API key, then see usage down to each request.

Request company access

FAQ

How much does Seed 1.6 Flash cost?: Billing is usage-based: $0.075 per million input tokens and $0.3 per million output tokens. There is no monthly minimum. You pay only for the tokens you actually use.
How do I access Seed 1.6 Flash from inside Iran?: Create a Hormouz account, generate an API key and point your client at Hormouz. Access to Seed 1.6 Flash is served from inside Iran, so you do not need a foreign credit card, a VPN or any sanction-circumvention tooling.
Is Seed 1.6 Flash compatible with the OpenAI SDK?: Yes. Hormouz exposes an OpenAI-compatible chat-completions API. Change the base URL to Hormouz and drop in your Hormouz key, and existing OpenAI SDK code runs unchanged.
What context window does Seed 1.6 Flash support?: Seed 1.6 Flash supports a context window of up to 262K tokens, which is enough for long documents and extended conversations in a single request.
How is Seed 1.6 Flash different from Seed 1.6?: Flash is the faster, cheaper variant. It shares multimodal input and the 256K context window with Seed 1.6 but is tuned for low latency and cost, which suits high-volume traffic. The full Seed 1.6 aims for higher quality on harder tasks.

Updated 2026-10-13