Seed 1.6 Flash

Seed 1.6 Flash is positioned as a fast, multimodal model from ByteDance's Seed family, designed to handle text, images, and video within a single workflow. The model accepts image, text, and video inputs and produces text outputs, making it suitable for tasks that combine visual understanding with language generation. Source documentation frames it as excelling at "multimodal deep thinking," processing both text and images together, which points to an intended role in cross-modal comprehension rather than single-format generation.

Practical applications highlighted for Seed 1.6 Flash include creating rich content from combined image and text inputs, conducting complex reasoning tasks, analyzing multimedia data, and generating detailed reports from diverse sources. The model's large context window allows it to ingest substantial documents or long media transcripts while still producing coherent written output. This combination of broad input support and extended context makes it a fit for workflows that need to reason over mixed media, such as report drafting from visual and textual sources, or structured analysis of multimedia collections.

OpenRouterbytedance-seed/seed-1.6-flashseed

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Quick Info

Provider: OpenRouter
Model key: bytedance-seed/seed-1.6-flash
Release date: Dec 23, 2025
Last updated: Dec 23, 2025
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $0.075
Output token cost: $0.30

Limits

Output tokens: 32,768 tokens
Context window: 262,144 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Seed 1.6 Flash

OpenRouter

Coverage

A Presenc AI lineage report published 2026-05-15 places Seed 1.6 Flash within ByteDance's 2026 Seed/Doubao lineup as the cost-efficient workhorse tier, sharing Seed 1.6's 256K context window and four-mode thinking capability. The report cites Seed 1.6 Flash at a $0.022-per-million output-token price floor, framing it a The same lineage article situates Seed 1.6 Flash between the Seed 1.6 (1.6/1.6 Flash workhorse tier) and the newer Seed 2.0 / Seed 2.0 Pro flagship multimodal and reasoning variants released in February 2026, within a 19-SKU production lineup. It characterizes the broader family strategy as driving ByteDance's consumer

OpenRouter

CoverageBenchmark

Seed 1.6 Flash is profiled on the n8n AI Benchmark dashboard as an ultra-fast multimodal deep thinking model from ByteDance Seed. The page documents a 262,144-token context window, multimodal inputs (image, text, and video), text-only outputs, and pricing of $0.000000075 per 1K prompt tokens and $0.0000003 per 1K compl On n8n's leaderboard, Seed 1.6 Flash earns an overall score of 76 (9th placement), with category scores of Cost 98 (3rd), Logic 80 (7th), Speed 87 (13th), Scoring 61 (3rd), Tool Use 32 (7th), Hallucination 54 (16th), Classification 39 (2nd), and Structured Output 75 (4th). The page's reported max completion size of 53