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DeepSeek V4.1 Flash Marathon

deepseek·deepseek/deepseek-v4.1-flash-marathon·GA·Open weights·deepseek-flash series·NEW
DeepSeek V4.1 Flash model for reasoning and agentic coding

Specs & pricing

Input / output per 1M tokens
Reference price·Subconscious
$0.14 / $0.28
Blended $0.18 · Cache read $0.0028
Lowest paid·SubconsciousGateway
$0.14 / $0.28
Blended $0.18
Context
5,000,000
Output limit
384,000
Knowledge cutoff
2025-05
Released / updated
2026-09-10 / 2026-09-10
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
Modalities
TextImage

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
SubconsciousGateway$0.14$0.28$0.0028—5,000,000384,000

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

Toggle (on / off)effort = loweffort = higheffort = max

Your usage cost

1Subconscious$25.54
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $0.14Output list $0.28Min blended $0.18

Price history accumulates from each data sync; currently only 1 sample(s) (2026-10-05). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

DeepSeek Flash Latestsame series$0.003 / $2.40DeepSeek V4.1 Flashsame series$0.15 / $0.60deepseek-ai/DeepSeek-V4.1-Flash-Fastsame series$0.60 / $2.40
Data partly from models.dev (MIT) · Subconscious official docs ↗