ByteDance · Released Dec 23, 2025

Seed 1.6

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

ReasoningVision
Released
Dec 23 2025
Context window
262K 33K out
Input / 1M tokens
$0.25 from $0.12
Output / 1M tokens
$2.00 from $0.29

Where to run it

6 providers compared

Cheapest: Ofox at $0.12 / $0.29 per 1M input / output tokens — 76% less than the priciest option.

ProviderInputOutputCache readContextMax outputUptimevs. best
Ofox $0.12 $0.29 $0.023256K64K— Cheapest
Qiniu $0.12 $1.16 —256K32K— +132%
Volcengine Ark $0.12 $1.19 $0.024256K64K— +138%
SeedFP8 $0.25 $2.00 —262K33K100%24h +323%
Kilo Gateway $0.25 $2.00 —262K33K— +323%
Vercel AI Gateway $0.25 $2.00 $0.05256K32K— +323%

Benchmarks

Benchmark scores

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

Specs

Details

Model ID
bytedance-seed/seed-1.6
Developer
ByteDance
Release date
Dec 23, 2025 ·
Context window
262,144 tokens
Max output
32,768 tokens
API price
$0.25 / $2.00 per 1M input / output tokens
Providers
6
Input types
image, text, video
Reasoning
Yes
Tool calling
Yes
Open weights
No
Free tier
No

Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; 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.