Seed 1.6 Flash is ByteDance's language model with a 262K context window and up to 33K output tokens, starting at $0.075 / 1M input and $0.3 / 1M output. An ultra-fast multimodal deep-thinking LLM by ByteDance Seed supporting both text and visual understanding with a 256k context window.
Specifications
Canonical IDbytedance-seed-1-6-flash
TypeLanguage
StatusDeprecating
CreatorByteDanceByteDance
Providers
Context Window262K tokens
Max Output33K tokens
Input ModalitiesImageTextVideo
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 10 months ago
Deprecation Date

Capabilities

Input3/5
Text✓
Image✓
Audio·
Video✓
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities4/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
OpenRouter logo
OpenRouter
bytedance-seed/seed-1.6-flash
$0.075$0.3

Cost Calculator

US Dollar ($)
Preset:

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Seed 2 Code—262K$0.500$3.00
Seed 2.1 Turbo—262K$0.431$2.16
Seed 2 LiteLite262K$0.250$2.00
Seed 2 MiniMini262K$0.100$0.400
Seed-TTS 2.0—————
Seed 2 ProPro—256K$0.500$3.00
Seed 1.6—262K$0.250$2.00
Seed 1.8—256K$0.250$2.00

Model IDs

bytedance-seed-1-6-flash
bytedance-seed/seed-1.6-flash
openrouter/bytedance-seed/seed-1.6-flash