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DeepSeek V4.1 Flash 1017

by DeepSeek

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.

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Our verdict

Not reviewed yet

We have not reviewed DeepSeek V4.1 Flash 1017 yet

No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.

How we review records

From the listing

About DeepSeek V4.1 Flash 1017

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.

Best for

Dated DeepSeek development snapshot

Notes

DeepSeek V4.1 Flash 1017 is listed in the EDNA Models directory from the OpenRouter catalogue.

Pros

  • Comparing repeatable coding prompts against a dated model ID
  • text, image input; text output on the listed OpenRouter route

Cons

  • Calling this snapshot the same as a moving provider alias
  • Ignoring time-dependent pricing overrides
  • Catalogue base token rates have additional pricing overrides. Context length, time window, caching, reasoning, tools or media can change total cost; the simple calculator is not a full quote.

Key facts

What we have checked

Input price
$0.0060 per million tokens
Checked OpenRouter models API
Output price
$0.500 per million tokens
Checked OpenRouter models API
Price on atlas-cloud
$0.0039 per million cached input tokens
Checked OpenRouter models API
Price on atlas-cloud
$0.195 per million input tokens
Checked OpenRouter models API
Price on atlas-cloud
$0.780 per million output tokens
Checked OpenRouter models API
Price on baidu
$0.0021 per million cached input tokens
Checked OpenRouter models API
Price on baidu
$0.098 per million input tokens
Checked OpenRouter models API
Price on baidu
$0.394 per million output tokens
Checked OpenRouter models API
Price on baseten
$0.0070 per million cached input tokens
Checked OpenRouter models API
Gpqa diamond
93.2% (for 17 Oct 2026)
Checked Epoch AI (CC BY 4.0)
Frontiermath tiers 1 3 v2 private
71.2% (for 17 Oct 2026)
Checked Epoch AI (CC BY 4.0)
Simpleqa verified
42.5% (for 17 Oct 2026)
Checked Epoch AI (CC BY 4.0)

Each value shows when we last confirmed it and where it came from. Values we have not confirmed are left out, never guessed.

API access

How to call it

Call via OpenRouter with model id `deepseek/deepseek-v4.1-flash-1017`.

  • openrouter · deepseek/deepseek-v4.1-flash-1017 · Docs

OpenRouter id: deepseek/deepseek-v4.1-flash-1017

Price

What DeepSeek V4.1 Flash 1017 costs, over time

Input price

$0.150 to $0.0060

US dollars per million input tokens. 17 Oct 2026 to 7 Nov 2026, 15 days.

Source: OpenRouter models API. Checked .

Output price

$0.600 to $0.500

US dollars per million output tokens. 17 Oct 2026 to 7 Nov 2026, 15 days.

Source: OpenRouter models API. Checked .

Prices by host

HostPriceOver timeChecked
atlas-cloudCached input$0.0039 per million cached input tokensSince 29 Oct 20262 changesOpenRouter models API
atlas-cloudInput$0.195 per million input tokensSince 29 Oct 20262 changesOpenRouter models API
atlas-cloudOutput$0.780 per million output tokensSince 29 Oct 20262 changesOpenRouter models API
baiduCached input$0.0021 per million cached input tokensSince 7 Nov 20266 changesOpenRouter models API
baiduInput$0.098 per million input tokensSince 7 Nov 20266 changesOpenRouter models API
baiduOutput$0.394 per million output tokensSince 7 Nov 20266 changesOpenRouter models API
basetenCached input$0.0070 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
basetenInput$0.300 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
basetenOutput$1.20 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
cloudflareCached input$0.0030 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
cloudflareInput$0.100 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
cloudflareOutput$0.600 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
cohereCached input$0.0060 per million cached input tokensSince 29 Oct 2026No change recordedOpenRouter models API
cohereInput$0.195 per million input tokensSince 29 Oct 2026No change recordedOpenRouter models API
cohereOutput$0.660 per million output tokensSince 29 Oct 2026No change recordedOpenRouter models API
coreweaveCached input$0.0060 per million cached input tokensSince 7 Nov 2026No change recordedOpenRouter models API
coreweaveInput$0.300 per million input tokensSince 7 Nov 2026No change recordedOpenRouter models API
coreweaveOutput$1.20 per million output tokensSince 7 Nov 2026No change recordedOpenRouter models API
crusoeCached input$0.0070 per million cached input tokensSince 1 Nov 20262 changesOpenRouter models API
crusoeInput$0.290 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
crusoeOutput$1.20 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
decartCached input$0.0025 per million cached input tokensSince 30 Oct 20263 changesOpenRouter models API
decartInput$0.123 per million input tokensSince 30 Oct 20263 changesOpenRouter models API
decartOutput$0.492 per million output tokensSince 30 Oct 20263 changesOpenRouter models API
deepinfraCached input$0.0024 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
deepinfraInput$0.078 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
deepinfraOutput$0.235 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
deepseekCached input$0.0030 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
deepseekInput$0.150 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
deepseekOutput$0.600 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
dekallmCached input$0.0060 per million cached input tokensSince 7 Nov 2026No change recordedOpenRouter models API
dekallmInput$0.180 per million input tokensSince 7 Nov 2026No change recordedOpenRouter models API
dekallmOutput$0.680 per million output tokensSince 7 Nov 2026No change recordedOpenRouter models API
digitaloceanCached input$0.0060 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
digitaloceanInput$0.180 per million input tokensSince 28 Oct 20261 changeOpenRouter models API
digitaloceanOutput$0.720 per million output tokensSince 28 Oct 20261 changeOpenRouter models API
fireworksCached input$0.0042 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
fireworksInput$0.210 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
fireworksOutput$0.840 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
gmicloudCached input$0.0036 per million cached input tokensSince 7 Nov 20262 changesOpenRouter models API
gmicloudInput$0.180 per million input tokensSince 7 Nov 20262 changesOpenRouter models API
gmicloudOutput$0.720 per million output tokensSince 7 Nov 20262 changesOpenRouter models API
inference-netCached input$0.0080 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
inference-netInput$0.080 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
inference-netOutput$0.550 per million output tokensSince 27 Oct 20261 changeOpenRouter models API
ionstreamCached input$0.011 per million cached input tokensSince 30 Oct 20264 changesOpenRouter models API
ionstreamInput$0.165 per million input tokensSince 30 Oct 20264 changesOpenRouter models API
ionstreamOutput$0.495 per million output tokensSince 30 Oct 20264 changesOpenRouter models API
makoraCached input$0.0060 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
makoraInput$0.150 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API

Usage

How much DeepSeek V4.1 Flash 1017 is used

Tokens served a day

682.8B to 7T

tokens a day on OpenRouter. 17 Oct 2026 to 7 Nov 2026, 22 readings.

Source: OpenRouter model activity (741 of 741 series). Checked .

Scores

How DeepSeek V4.1 Flash 1017 scores

Each score comes from the named source and shows when we last confirmed it. A flag means the score needs care.

ScoreValueSourceChecked
Artificial Analysis Intelligence Index28.6indexAs of 7 Nov 2026Artificial Analysis via OpenRouter
Design Arena rating (Elo)1,356EloAs of 7 Nov 2026Design Arena via OpenRouter
Chess puzzles (best-across-versions)46percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Frontiermath tier 4 v2 private (best-across-versions)46.3percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Frontiermath tiers 1 3 v2 private (best-across-versions)71.2percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Gpqa diamond (best-across-versions)93.2percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Mystery game puzzles (best-across-versions)49percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Otis mock aime 2024 2025 (best-across-versions)Saturated99.4percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Simpleqa verified (best-across-versions)42.5percentAs of 17 Oct 2026Epoch AI (CC BY 4.0)
Saturated
Top models score close to the maximum, so this test no longer separates them.

Compare

Compare DeepSeek V4.1 Flash 1017 side by side

Sources

Where this comes from

A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.

Changelog

What changed

  1. Price changed

    cached input per mtok: 0.005 to 0.01

    Source: OpenRouter models API

  2. Price changed

    cached input per mtok: 0.003 to 0.00222

    Source: OpenRouter models API

  3. Price changed

    output per mtok: 0.6 to 0.444

    Source: OpenRouter models API

  4. Price changed

    input per mtok: 0.15 to 0.111

    Source: OpenRouter models API

  5. Price changed

    cached input per mtok: 0.0039 to 0.0027

    Source: OpenRouter models API

  6. Price changed

    output per mtok: 0.78 to 0.54

    Source: OpenRouter models API

  7. Price changed

    input per mtok: 0.195 to 0.135

    Source: OpenRouter models API

  8. Price changed

    output per mtok: 1.2 to 0.55

    Source: OpenRouter models API

  9. Price changed

    input per mtok: 0.035 to 0.006

    Source: OpenRouter models API

  10. Price changed

    cached input per mtok: 0.006 to 0.008

    Source: OpenRouter models API

  11. Price changed

    output per mtok: 0.6 to 1.1

    Source: OpenRouter models API

  12. Price changed

    input per mtok: 0.06 to 0.16

    Source: OpenRouter models API

  13. Price changed

    cached input per mtok: 0.0165 to 0.015

    Source: OpenRouter models API

  14. Price changed

    output per mtok: 0.66 to 0.6

    Source: OpenRouter models API

  15. Price changed

    input per mtok: 0.165 to 0.15

    Source: OpenRouter models API

  16. Price changed

    input per mtok: 0.24 to 0.1092

    Source: OpenRouter models API

  17. Price changed

    cached input per mtok: 0.005 to 0.004

    Source: OpenRouter models API

  18. Price changed

    output per mtok: 0.5 to 0.6

    Source: OpenRouter models API

  19. Price changed

    input per mtok: 0.035 to 0.0175

    Source: OpenRouter models API

  20. Price changed

    cached input per mtok: 0.0039 to 0.0033

    Source: OpenRouter models API

USAGE / OPENROUTER

How much DeepSeek V4.1 Flash 1017 is used

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

Tokens, last 7 days
56T ▲17.1%
Requests, last 7 days
896M
Tool calls, last 7 days
479M
Intelligence score
28.6
Average cost per request
13.1¢
Price per million tokens
$0.0060 in · $0.5 out
010T20T17 Oct: 683B tokens, 9.6M requests18 Oct: 3T tokens, 58.7M requests19 Oct: 3.6T tokens, 61.6M requests20 Oct: 4.2T tokens, 73.7M requests21 Oct: 5T tokens, 80.4M requests22 Oct: 5.2T tokens, 82.6M requests23 Oct: 5T tokens, 80.1M requests24 Oct: 4.8T tokens, 85.9M requests25 Oct: 5.8T tokens, 91M requests26 Oct: 5.4T tokens, 88.6M requests27 Oct: 6T tokens, 101M requests28 Oct: 7.3T tokens, 120M requests29 Oct: 8.1T tokens, 122M requests30 Oct: 8.2T tokens, 128M requests31 Oct: 7.1T tokens, 112M requests1 Nov: 6T tokens, 99.4M requests2 Nov: 7.8T tokens, 133M requests3 Nov: 10.3T tokens, 150M requests4 Nov: 10.2T tokens, 141M requests5 Nov: 6.9T tokens, 119M requests6 Nov: 7.8T tokens, 135M requests7 Nov: 7T tokens, 119M requests17 Oct31 Oct7 NovSee where it ranks on the leaderboard →

MODEL FIELD GUIDE / SOURCE EVIDENCE

What you can do with DeepSeek V4.1 Flash 1017.

Specifications reviewed; no EDNA task evaluation has been run. Sources checked 2026-11-08. Hosting routes and app features can differ.

DeveloperDeepSeek
Exact model identifierdeepseek/deepseek-v4.1-flash-1017
Inputtext, image
Outputtext
Tool calling
Listed support
Structured output
Listed support
Reasoning controls
Listed support
Availability
available
Price basis
token
Licence verification
MIT, open weights
Context length
1M tokens
Knowledge cutoff
Not established
Developer release date
Not established
First seen in the catalogue
17 Oct 2026
Listed retirement date
Not established

Catalogue base token rates have additional pricing overrides. Context length, time window, caching, reasoning, tools or media can change total cost; the simple calculator is not a full quote.

Consider it for

  • Comparing repeatable coding prompts against a dated model ID
  • Analysing screenshots alongside technical instructions

Watch for

  • Calling this snapshot the same as a moving provider alias
  • Ignoring time-dependent pricing overrides

PRACTICAL EXERCISE / NOT RUN BY ENTERPRISE DNA

Try the model on a small, checkable task.

Review a screenshot of a form plus its rule: quantity must be a positive integer. Design tests for 0, -1, 1.5 and 2; separate what is visible from what requires code inspection.

Check the result: Only 2 is valid; the response does not claim tests were executed.

Compare another approach

anthropic claude sonnet 5 5 ↗openai gpt 6 1 sol ↗
Inspect the sources and their scope
provider source ↗

Developer documentation for model family or task. OpenRouter route-specific properties remain catalogue claims; EDNA has not executed a task evaluation.

Checked 2026-10-19
catalogue source ↗

deepseek/deepseek-v4.1-flash-1017: listed route capabilities, availability and prices; provider endpoints can differ.

Checked 2026-11-08
openrouter.ai ↗

Source for reasoning controls, first seen, tool calling, context length, input, output, structured output.

Checked 2026-11-08
Licence source ↗

Licence declared in the deepseek-ai/DeepSeek-V4.1-Flash-1017 model repository on Hugging Face, which holds the weights files. Read the licence terms before use.

Checked 2026-11-07
How to evaluate a model for your work →

FROM SPECIFICATIONS TO YOUR WORK

Is this the right model for your job?

Start with a realistic sample. These workflows match the model’s listed capabilities, not a verified result on your task.

Extract document dataWorkflow & starter prompt ↗Run a reliable agentWorkflow & starter prompt ↗

What would it cost?

Pick a common job and how many times a month you run it. Token sizes are our assumption for a typical run, shown under the result.

Working out the cost...

Token prices only. Per-request, image, tool, storage and subscription fees are not included. One token is about three quarters of an English word. Real counts vary by model and language. How tokens are counted ↗

Check the source

Price date: 7 Nov 2026, from OpenRouter models API. 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: 28.6 (2026-11-06) ↗Vals Index: 61.257 (2026-11-06) ↗Design Arena: 1356 (2026-11-06) ↗
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