Seed 1.6

About

Seed 1.6 is a general-purpose model from ByteDance Seed, with text output and text, image, and video inputs. Its multimodal capabilities and adaptive deep thinking are paired with a 262,144-token context window. The model supports tools and reasoning, and can return up to 32,768 output tokens. Its listed input price is USD 0.25 per 1M tokens; output costs USD 2 per 1M tokens. The model identifier is bytedance-seed/seed-1.6. For builders, its mix of text, image, and video input makes it relevant to workflows that need more than text, while the large context window allows substantial material to be included in a request. It was released on 2025-12-23. Seed 1.6 is listed as accepting image and video alongside text, but its output is text.

Who it is for

Teams building tool-using or reasoning workflows that need text, image, or video inputs may find Seed 1.6 a fit. Its large context window suits tasks that need substantial input in one request.

Details

Lab

ByteDance Seedopenrouter.ai · 3 Oct 2026

Context

262Kopenrouter.ai · 3 Oct 2026

Input price

$0.25 / 1Mopenrouter.ai · 3 Oct 2026

Output price

$2 / 1Mopenrouter.ai · 3 Oct 2026

Max output

32,768 tokensopenrouter.ai · 3 Oct 2026

Inputs

image, text, videoopenrouter.ai · 3 Oct 2026

Open weights

Noopenrouter.ai · 3 Oct 2026

Listed on Inferse

• Newest Models in 2026466 listed
• Longest-Context Models in 2026466 listed
• Cheapest Language Models in 2026437 listed
• Models with Tool Calling in 2026395 listed
• Reasoning Models in 2026332 listed
• Vision Language Models in 2026295 listed
• ByteDance Seed Models: Pricing per 1M Tokens and Context (2026)6 listed

Sources

• openrouter.ai/bytedance-seed/seed-1.6· checked 3 Oct 2026