Models/DeepSeek/DeepSeek V4.1 Flash 1017

DeepSeek V4.1 Flash 1017

NEW
DeepSeek · Open weights · Released Oct 17, 2026 · deepseek/deepseek-v4.1-flash-1017
Best $0.05 in / $0.294 out via Relace
CompareEstimate cost
1.05M contextVisionToolsReasoningStructured outputPrompt cachingOpen weights
Available from 11 providersUSD / MTOK · PRICES 22 MINUTES AGO · SPEED 7 MINUTES AGO
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PROVIDERINPUTOUTPUTCACHECONTEXTQUANTTTFTTPSUPTIME
TTFT/TPS: median (P50) over trailing 504h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · methodology v1.1 · measured 7 minutes ago
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Pricing variants · USD / MTok in / out
STANDARD
$0.05 / $0.60
per MTok in / out
CACHE READ $0.008
Recent changesRSS ↗
Oct 18, 2026model added
About

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...

Specifications
Context window1,048,576
Max output393,216
Modalities intext, image
Modalities outtext
LicenseOpen weights
ReleasedOct 17, 2026
TokenizerDeepSeek
Open weights
Downloads0
Likes1.1K
Licensemit
safetensors
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DeepSeek V4.1 Flash 1017 price and speed badge
[![DeepSeek V4.1 Flash 1017](https://modelindex.ai/badge/deepseek/deepseek-v4.1-flash-1017)](https://modelindex.ai/models/deepseek/deepseek-v4.1-flash-1017)
Sources
OpenRouter API22 minutes ago
AGGREGATOR
Hugging Face22 minutes ago
COMMUNITY
ModelIndex benchmarks7 minutes ago
MEASURED
Verified 22 minutes ago · list prices, not negotiated rates.