Seed 1.6 Flash

bytedance-seed/seed-1.6-flash-20250625

ByteDance Seed: Seed 1.6 Flash is a multimodal model from bytedance‑seed that accepts image, text, and video inputs and produces text output. It supports tools and reasoning, has open weights, a context length of 262 144 tokens, and is priced at $0.075 per million input tokens and $0.30 per million output tokens. The model was released on 2025‑12‑23.

  • tool use
  • structured outputs
  • reasoning
  • open-weight

At a glance

providerbytedance-seed
releasedDec 23, 2025
context262K
input / M$0.075

Specifications

What the API gives you

Context window
262K tokens
Max output
33K tokens
Input price
$0.075 / 1M tokens
Output price
$0.30 / 1M tokens
Cache read
Modalities
image, text, video → text
Knowledge cutoff
Released
Dec 23, 2025

Recommendation coverage

Where this model appears

Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.

Benchmarks

No independent benchmark results are linked to this model yet. We keep it visible while withholding quality claims until usable results arrive.

Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.