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DeepSeek V4.1 Flash Heretic

deepseek·deepseek/deepseek-v4.1-flash-1017-heretic·GA·Open weights·deepseek series·NEW
pqhaz's Heretic checkpoint of DeepSeek V4.1 Flash 1017, served by Sable at original mixed precision (FP8 dense/Engram and MXFP4 experts). Supports text and image input, tools, structured output, and optional reasoning. Separate from the DeAlign uncensored checkpoint.

Specs & pricing

Input / output per 1M tokens
Official price
—
Lowest paid·NanoGPTGateway
$0.19 / $0.74
Blended $0.32
Context
512,000
Output limit
128,000
Knowledge cutoff
—
Released / updated
2026-10-31 / 2026-10-31
Capabilities
✓ Reasoning✓ Tool useStructured output? Temperature✓ Attachments
Modalities
TextImage

DeepSeek V4.1 Flash Heretic is currently listed from a single provider. No official API price is listed for it; the prices below come from third-party channels.

The context window is 512,000 tokens, with an output limit of 128,000 tokens. It supports reasoning and tool use. Accepted input modalities are Text and Image. The weights are open, so it can also be self-hosted or served through a gateway of your choice.

Available at 1 providers1 with public prices

  • ProviderInput / Output
  • NanoGPTGateway
    pqhaz/DeepSeek-V4.1-Flash-1017-heretic
    $0.19 / $0.74
    Cache read $0.012Context 512,000Output limit 128,000
ProviderTierInputOutputCache readCache writeContextOutput limitStatus
NanoGPT
pqhaz/DeepSeek-V4.1-Flash-1017-heretic
Gateway$0.19$0.74$0.012$0.19512,000128,000

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 = noneeffort = minimaleffort = loweffort = mediumeffort = higheffort = xhigheffort = max

Your usage cost

Common scenarios
1NanoGPT$53.40
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list —Output list —Min blended $0.32

Price history accumulates from each data sync; currently only 1 sample(s) (2026-11-01). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

DeepSeek V4.1 Flash Heretic Thinkingsame series—DeepSeek V4.1 Flash Cybersame series—DeepSeek V4.1 Flash 1017 Uncensoredsame series—DeepSeek V4.1 Flash 1017same lab$0.15 / $0.60
Data partly from models.dev (MIT)