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Seed 1.6 Flash (250715)

bytedance-seed·bytedance-seed/seed-1-6-flash-250715·GA·Open weights·seed series
Multimodal reasoning model for visual analysis, planning, and tool use

Specs & pricing

Input / output per 1M tokens
Reference price·LLM Gateway
$0.07 / $0.30
Blended $0.13 · Cache read $0.015
Lowest paid·DevPass (LLM Gateway)Gateway
$0.07 / $0.30
Blended $0.13 · 1× spread
Context
256,000
Output limit
256,000
Knowledge cutoff
—
Released / updated
2025-07-26 / 2025-07-26
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImage

Available at 2 providers2 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
DevPass (LLM Gateway)Gateway$0.07$0.30$0.015—256,0008,192
LLM GatewayGateway$0.07$0.30$0.015—256,000256,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = minimaleffort = loweffort = mediumeffort = high

Your usage cost

1DevPass (LLM Gateway)$22.40
2LLM Gateway$22.40
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $0.07Output list $0.30Min blended $0.13

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-20). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

byByteDance Seed 2.1 Turbosame series$0.50 / $2.50bySeedance 2.5same series—byDoubao Seed Charactersame series$0.12 / $0.29Hy3cheaper alternative$0 / $0Qwen3.7 Flashcheaper alternative$0.03 / $0.13Nemotron 3.5 Lightning 30B A3Bcheaper alternative$0 / $0Laguna S 2.1cheaper alternative$0 / $0
Data partly from models.dev (MIT) · LLM Gateway official docs ↗