Seed 1.6 Flash

seed-1.6-flash

Seed 1.6 Flash is an ultra-fast multimodal deep-thinking model by ByteDance Seed, supporting both text and visual understanding, with a 256k context window and up to 16k tokens of output generation.

Context: 262.1K tokens
Endpoint

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Pricing

Input$0.075 / 1M

Output$0.30 / 1M

Cache Write (5m)$0.075 / 1M

Cache Write (1h)$0.075 / 1M

Cache Read$0.075 / 1M

Web Search$0 / 1M

Quick Start

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Endpoint

python

from openai import OpenAI client = OpenAI(    api_key="YOUR_API_KEY",    base_url="https://api.apertis.ai/v1") response = client.chat.completions.create(    model="seed-1.6-flash",    messages=[        {"role": "user", "content": "Hello!"}    ],    max_tokens=1024,    temperature=0.7) print(response.choices[0].message.content) # Optional: Enable context compression to reduce token usage# response = client.chat.completions.create(#     model="seed-1.6-flash",#     messages=[{"role": "user", "content": "Hello!"}],#     extra_body={"compression": {"enabled": True, "model": "gpt-4.1-mini"}}# )

Supported Parameters

API docs

Common7 params

modelmessagesmax_tokenstemperaturetop_pstreamtools

Extended4 params

reasoning_effortstream_optionsthinkingextra_body

Cursor IDE Model IDs

Use these namespaced identifiers in Cursor IDE to avoid conflicts with built-in models.

seed-1.6-flash

Compare with Other Models

See how this model compares to others from the same provider.

Seed-2.0-Mini

Seed-2.0-mini is designed for latency-sensitive, high-concurrency, and cost-sensitive deployments, prioritizing fast response times and flexible inference scalability. It delivers performance comparable to ByteDance-Seed-1.6 while offering improved efficiency for lightweight, production workloads. The model supports a 256K context window, four adjustable reasoning effort modes (minimal, low, medium, high), and multimodal understanding. Optimized for scenarios where speed, scalability, and cost efficiency are critical, Seed-2.0-mini is well suited for real-time applications and lightweight agent workflows.

Context: 262.1K
Input: $0.10/M
Output: $0.40/M

Seed-2.0-Lite

Seed-2.0-Lite is a balanced model designed for high-frequency enterprise workloads, optimizing for both capability and cost efficiency. It surpasses the previous-generation Seed-1.8 in overall performance while maintaining stable, production-ready quality. The model supports long-context processing, multi-source information fusion, multi-step instruction execution, and high-fidelity structured outputs. It is well suited for enterprise scenarios such as unstructured data processing, content generation, search and recommendation, and data analysis, delivering reliable results while significantly reducing operational cost.

Context: 262.1K
Input: $0.20/M
Output: $1.60/M

Seed 1.6

Seed 1.6 is a general-purpose multimodal model from the ByteDance Seed team, featuring adaptive deep thinking and a 256K context window.

Context: 262.1K
Input: $0.25/M
Output: $2.00/M