ByteDance · Released Dec 23, 2025

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. It features a 256k context window and can generate outputs of...

ReasoningVision
Released
Dec 23 2025
Context window
262K 33K out
Input / 1M tokens
$0.075
Output / 1M tokens
$0.30

Where to run it

Providers

Only Seed serves Seed 1.6 Flash on OpenRouter right now.

ProviderInputOutputContextMax outputUptimevs. best
SeedFP8 $0.075 $0.30 262K33K100%24h Cheapest

Benchmarks

Benchmark scores

No benchmark scores yet — Epoch AI hasn't evaluated Seed 1.6 Flash. Scores appear here automatically once it does.

Specs

Details

Model ID
bytedance-seed/seed-1.6-flash
Developer
ByteDance
Release date
Dec 23, 2025 ·
Context window
262,144 tokens
Max output
32,768 tokens
API price
$0.075 / $0.30 per 1M input / output tokens
Providers
1
Input types
image, text, video
Reasoning
Yes
Tool calling
Yes
Open weights
No
Free tier
No

Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.