How much does Seed 1.6 cost?

Seed 1.6 costs $0.25 per million input tokens and $2.00 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $15.

What is the context length of Seed 1.6?

Seed 1.6 accepts up to 262,144 tokens (262K) of input and can return up to 32,768 tokens in one response.

Does Seed 1.6 support tool calling and structured outputs?

Yes, Seed 1.6 supports function/tool calling and structured (JSON) outputs. Supported tools: Function calling, Structured outputs, JSON mode, Reasoning.

What inputs and outputs does Seed 1.6 support?

Seed 1.6 accepts Image, Text, Video as input and produces Text as output.

When was Seed 1.6 released?

Seed 1.6 was released by ByteDance Seed in 2025-12-23.

Seed 1.6

seed-1.6

API Provider site

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window. Built by ByteDance Seed.

Prices updated recently

Input price

$0.25

per 1M tokens · Standard

Output price

$2.00

per 1M tokens · Standard

Input limit

262K

tokens

Output limit

33K

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

Seed 1.6 price history

2 price records since 9/25/2026

Seed 1.6 cost calculator

Input20M tokens

Output5M tokens

$15/month

Standard pricing

Overview

What is Seed 1.6?

Seed 1.6 is a text & reasoning and vision model from ByteDance Seed. Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window. Its 262K context window and $0.25 input price make it a candidate for cost-sensitive, high-throughput applications.

Image understandingDocument analysisContent workflowsClassification

Rates

Seed 1.6 pricing

Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

Input · Standard

$0.25

Per 1M tokens

Cached input · Standard

Not available

No listed cached-input rate

Capabilities

Seed 1.6 Tools

Tools available when using Seed 1.6 through supported provider APIs.

Function calling

Supported

Structured outputs

Supported

JSON mode

Supported

Reasoning

Supported

Built-in web search

Not supported

Log probabilities

Not supported

Deterministic seed

Not supported

Parallel tool calls

Not supported

Prompt caching

Not supported

Strengths and limitations

Strengths

Low input cost at $0.25 per million tokens suits high-volume workloads.
262K context supports large documents, repositories and extended conversations.
Supports text & reasoning and vision workloads in one model.

Limitations

Generated tokens cost 8× more than input tokens, which matters for verbose responses.
Large context capacity does not guarantee consistent retrieval across the entire prompt.
Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

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