ByteDanceOpen-weight·262K context·— params

Seed 1.6 Flashbytedance/seed-1-6-flash

Name: Seed 1.6 Flash API
Brand: ByteDance
Availability: InStock

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...

Cheapest blended:$0.13 / 1M tokenson ByteDance Doubao (Volcengine) · 1 provider listed

Pricing across providers

Sort by:

Provider	Input /1M	Output /1M	Blended /1M	Latency p50	Format	Freshness	Action
ByteDance Doubao (Volcengine) seed-1.6-flash	$0.07	$0.30	$0.13	—	OpenAI-compatible	Needs 27d ago	Try →

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Works with

Point any of these clients at a hosting's base URL — they all speak at least one of this model's endpoint protocols (OPENAI_COMPATIBLE).

Capabilities

Code samples

Example using ByteDance Doubao (Volcengine) — the cheapest hosting for this model as of last verification. Swap base_url and model to use a different provider from the matrix above.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://ark.cn-beijing.volces.com/api/v3",
)

response = client.chat.completions.create(
    model="seed-1.6-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

Technical specs

Context: 262K
Max output: 33K
Parameters: —
Release: —
Training cutoff: —
License: —

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Seed 1.6 Flash vs GLM 5V Turbo
Comparison planned — not yet published

Frequently asked

How much does Seed 1.6 Flash cost?+

The cheapest public hosting is $0.13 per 1M blended tokens on ByteDance Doubao (Volcengine). 1 total providers are listed above with per-input / per-output / cached pricing.

How do I access Seed 1.6 Flash from outside China?+

All hostings listed above support global access. The official API (e.g. api.deepseek.com, dashscope-intl.aliyuncs.com) accepts international credit cards and does not require a Chinese mobile number. For privacy-sensitive workloads, third-party aggregators like Together.ai host the model on US/EU infrastructure.

Is Seed 1.6 Flash open-source? Can I fine-tune it?+

Yes. Seed 1.6 Flash is open-weight under the unspecified license. Weights are available on Hugging Face for local inference, fine-tuning, and commercial use (see license for specific terms).

Is Seed 1.6 Flash OpenAI-compatible?+

Most listed hostings expose an OpenAI-compatible API, so you can point an existing openai SDK client at the Provider's base_url and use the Provider's model name. See the Code Samples above for a copy-pasteable example.

What's the maximum context window for Seed 1.6 Flash?+

The model supports up to 262,144 tokens of context (input + output). Some hosted versions may impose a smaller limit — check the "Context" column in the pricing matrix for each provider.