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DeepSeek V4.1 Flash

by DeepSeek

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters o

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DeepSeek V4.1 Flash

Added 20 Sept 2026

#deepseek

Overview

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...

How to use / API access

Call via OpenRouter with model id `deepseek/deepseek-v4.1-flash`.

  • openrouter · deepseek/deepseek-v4.1-flash Docs

OpenRouter id: deepseek/deepseek-v4.1-flash

Benchmarks

  • Intelligence Index (artificial-analysis): 24.7 index

Notes

DeepSeek V4.1 Flash is listed in the EDNA Models directory from the OpenRouter catalogue.

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USAGE / OPENROUTER

How much DeepSeek V4.1 Flash is used

Tokens processed through OpenRouter each day. It shows what developers actually run, not every company's private traffic.

Tokens, last 7 days
32.8T ▼19.9%
Requests, last 7 days
739M
Tool calls, last 7 days
256M
Intelligence score
24.7
People's vote
1463
Average cost per request
12.8¢
Price per million tokens
$0.03 in · $0.08 out
05T10T19 Sept: 3.1T tokens, 45.6M requests20 Sept: 2.5T tokens, 39.9M requests21 Sept: 2.4T tokens, 46.5M requests22 Sept: 2.7T tokens, 45M requests23 Sept: 2.8T tokens, 49.1M requests24 Sept: 2.8T tokens, 49.7M requests25 Sept: 3T tokens, 47M requests26 Sept: 2.5T tokens, 42M requests27 Sept: 3.4T tokens, 62.7M requests28 Sept: 3.7T tokens, 64.5M requests29 Sept: 3.9T tokens, 67.4M requests30 Sept: 3.5T tokens, 62.3M requests1 Oct: 3.5T tokens, 63.7M requests2 Oct: 3.6T tokens, 72.2M requests3 Oct: 3.9T tokens, 76.2M requests4 Oct: 3.4T tokens, 59.6M requests5 Oct: 6.5T tokens, 89.6M requests6 Oct: 5.1T tokens, 79.1M requests7 Oct: 7.5T tokens, 105M requests8 Oct: 5.5T tokens, 92.3M requests9 Oct: 5.6T tokens, 105M requests10 Oct: 5T tokens, 102M requests11 Oct: 5.7T tokens, 132M requests12 Oct: 6T tokens, 124M requests13 Oct: 5T tokens, 102M requests14 Oct: 4.5T tokens, 103M requests15 Oct: 5.2T tokens, 108M requests16 Oct: 5.4T tokens, 129M requests17 Oct: 4.1T tokens, 110M requests18 Oct: 2.6T tokens, 64.7M requests19 Sept3 Oct17 Oct18 OctSee where it ranks on the leaderboard →

FROM SPECIFICATIONS TO YOUR WORK

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Check the source

Price date: 2026-10-18. Prices are USD API token rates. Your app subscription, uploads, browsing and tools are separate.

Model source & availability ↗

Understand the evidence

Listed capabilities and third-party benchmark scores do not establish Enterprise DNA task-test results. Validate accuracy and total cost on your own sample.

Intelligence Index: 24.7 (2026-10-18) ↗
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