DeepSeek-V4.1-Flashvs.DeepSeek V4.1 Flash 1017

What has improved?

DeepSeek V4.1 Flash 1017 is clearly ahead in the overall index. The price has stayed the same.

IntelligenceOverall index, 0 to 100 · higher is better

DeepSeek-V4.1-Flash

Rank 23 to 34

DeepSeek V4.1 Flash 1017

Rank 14 to 22

SpeedTokens per second · higher is better

177

DeepSeek-V4.1-Flash

fast

178

DeepSeek V4.1 Flash 1017

fast

PriceDollars per 1M tokens · lower is better

$0.26

DeepSeek-V4.1-Flash

cheap

$0.26

DeepSeek V4.1 Flash 1017

cheap

DeepSeek-V4.1-Flash

Subscription: No DeepSeek subscription includes this model. Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 28 plans in Germany.
Via API: $0.15 input, $0.60 output per 1M tokens according to the provider; the price index has listed it at $0.30 and $1 since Sep 26, 2026.

DeepSeek V4.1 Flash 1017

Subscription: No DeepSeek subscription includes this model. Through other providers from ≈ €6.36 a month (Token Plan Individual Lite, with limited credits). 7 plans in Germany.
Via API: $0.15 input, $0.60 output per 1M tokens according to the provider; the price index has listed it at $0.30 and $1 since Oct 26, 2026.

Overall index with data through Oct 29, 2026 · Prices from Oct 29, 2026 · Speed: measured by Artificial Analysis · Subscriptions as of Oct 24, 2026 · Subscription prices incl. VAT

Where is the difference?

Values from 0 to 100 per task area. We only name a winner when the gap is large enough and there are enough tests.

DeepSeek-V4.1-Flash ahead: 0DeepSeek V4.1 Flash 1017 ahead: 3level: 2too little data: 5of 10 areas

AreaDeepSeek-V4.1-FlashDeepSeek V4.1 Flash 10170 to 100, higher is betterResult

Areas in the overall index

CodingDeepSeek V4.1 Flash 1017 ahead4772

Reasoningtoo little data4645

Mathematicsonly DeepSeek-V4.1-Flash has a score40not enough data

Knowledgeonly DeepSeek V4.1 Flash 1017 has a scorenot enough data33

Agentslevel6975

Generalonly DeepSeek-V4.1-Flash has a score42not enough data

MultimodalDeepSeek V4.1 Flash 1017 ahead3455

Specialist fields

Financelevel6069

LegalDeepSeek V4.1 Flash 1017 ahead5276

Healthonly DeepSeek-V4.1-Flash has a score33not enough data

Show 3 more areas that do not count toward the overall index

AreaDeepSeek-V4.1-FlashDeepSeek V4.1 Flash 10170 to 100, higher is betterResult

Cybersecurityonly DeepSeek-V4.1-Flash has a score66not enough data

Productivityonly DeepSeek-V4.1-Flash has a score49not enough data

Educationonly DeepSeek-V4.1-Flash has a score41not enough data

See for yourself: same task, one attempt

The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.

Pelican on a bicycle

A community classic for free-form SVG drawing.

DeepSeek-V4.1-Flash

The response reached the token limit. No complete recording is available.

Reasoning (requested): high

Current attempt

Run date: Oct 5, 2026
API provider: openrouter
Requested API model: deepseek/deepseek-v4.1-flash
API model reported in response: deepseek/deepseek-v4.1-flash
Reasoning setting: high
Pinned endpoint: DeepSeek | deepseek/deepseek-v4.1-flash-20260910
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Failed
Response time: 25.8 s

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Earlier attempts (2)

Oct 2, 2026API request failedReasoning setting: high
Oct 1, 2026API request failedReasoning setting: high

DeepSeek V4.1 Flash 1017

Not tested yet

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

SVG short test

There is no shared test round for this selection. Results from different rounds are not mixed.

All data side by side

The better value is bold. For the overall index only when the gap is clear.

Metric	DeepSeek-V4.1-Flash	DeepSeek V4.1 Flash 1017
Intelligence
Overall index0 to 100, higher is better	48	64
Rank	Rank 23 to 34 of 95	Rank 14 to 22 of 95
Price per 1M tokens
Inputwhat you send	$0.15	$0.15
Outputwhat the model writes	$0.60	$0.60
Speed
Tokens per second	177	178
Technical
Context windowhow much text the model reads at once	1 M tokens≈ 1,500 A4 pages	1.05 M tokens≈ 1,570 A4 pages
Knowledge cutoff	n/a	n/a
Released	Sep 10, 2026	Oct 17, 2026
Availability	Active	Open Source
Open weights	yes	yes

DeepSeek-V4.1-Flash: At peak times (Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC) the price is $0.30 input and $1.20 output per 1M tokens. The table shows the off-peak price.
DeepSeek V4.1 Flash 1017: At peak times (Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC) the price is $0.30 input and $1.20 output per 1M tokens. The table shows the off-peak price.
DeepSeek V4.1 Flash 1017, Time-based API pricing: Off peak: $0.15 input, $0.60 output, and $0.003 cached input. Weekdays UTC 01:00-04:00 and 06:00-10:00: $0.30, $1.20, and $0.006. Chinese public holidays are excluded. Source

Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis

Shared benchmarks

Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.

A: DeepSeek-V4.1-FlashB: DeepSeek V4.1 Flash 1017

Code MigrationOverall · higher is betterTest setup not documented as identical45.6%44.2%Vals AIAs of 10/18/2026

Code Migration v1.1Overall · higher is better58.9%67.5%Vals AIAs of 10/20/2026

CritPt v2Overall · higher is better14.3%24.0%Artificial AnalysisAs of 10/29/2026

EMBOverall · higher is betterTest setup not documented as identical57.2%61.8%Vals AIAs of 10/20/2026

EMB v1.1Overall · higher is better67.8%69.2%Vals AIAs of 10/26/2026

Finance Agent (v2)Overall · higher is betterTest setup not documented as identical53.5%57%Vals AIAs of 10/20/2026

Finance Agent v2.1Overall · higher is better65.4%62.9%Vals AIAs of 10/26/2026

FrontierCode 1.1 MainOverall · higher is better44.0%43.7%Artificial AnalysisAs of 10/29/2026

GDPval-AAOverall · higher is better1,600 elo1,745.77 eloArtificial AnalysisAs of 10/29/2026

Legal Research BenchOverall · All-pass · higher is better41.3%45.2%Vals AIAs of 10/26/2026

Show 54 more benchmarks

LMArena Code Arena WebDevOverall · higher is better1,6191,666LMArenaAs of 10/27/2026

MMMU-ProOverall · higher is better77.0%80.6%Artificial AnalysisAs of 10/29/2026

Tax Agent BenchOverall · higher is better26.6%44.4%Vals AIAs of 10/26/2026

Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identical19.7%31.8%Vals AIAs of 10/26/2026

Vals Finance IndexOverall · higher is better57.1%60.9%Vals AIAs of 10/26/2026

Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identical84.7%87.7%Vals AIAs of 10/26/2026

Code MigrationCLI · higher is betterTest setup not documented as identical37.5%35.6%Vals AIAs of 10/18/2026

Code Migration v1.1CLI · higher is better47.7%59.2%Vals AIAs of 10/20/2026

EMBComps · higher is betterTest setup not documented as identical43.9%49.8%Vals AIAs of 10/20/2026

EMB v1.1Comps · higher is better68%70.8%Vals AIAs of 10/26/2026

Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identical49.2%58.4%Vals AIAs of 10/20/2026

Finance Agent v2.1Adjustments · higher is better66.6%66.8%Vals AIAs of 10/26/2026

Legal Research BenchAdministrative / Regulatory · All-pass · higher is better53%59.1%Vals AIAs of 10/26/2026

LMArena Code Arena WebDevHTML development · higher is better1,6131,705LMArenaAs of 10/27/2026

Tax Agent BenchControversy & Precedence Analysis · higher is better3.3%23.3%Vals AIAs of 10/26/2026

Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identical0%6.7%Vals AIAs of 10/26/2026

Vals Finance IndexEMB v1.1 · higher is better67.8%69.2%Vals AIAs of 10/26/2026

Code MigrationCOBOL · higher is betterTest setup not documented as identical70%70%Vals AIAs of 10/18/2026

Code Migration v1.1COBOL · higher is better92.5%92.5%Vals AIAs of 10/20/2026

EMBDataroom · higher is betterTest setup not documented as identical73.9%82.8%Vals AIAs of 10/20/2026

EMB v1.1Dataroom · higher is better79.9%86.5%Vals AIAs of 10/26/2026

Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identical41.1%45.2%Vals AIAs of 10/20/2026

Finance Agent v2.1All-Pass · higher is better51.7%51.3%Vals AIAs of 10/26/2026

Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is better89.1%91.3%Vals AIAs of 10/26/2026

LMArena Code Arena WebDevReact development · higher is better1,6291,672LMArenaAs of 10/27/2026

Tax Agent BenchControversy & Precedence Analysis · higher is better52.8%73.2%Vals AIAs of 10/26/2026

Terminal-Bench 4.0Media · higher is betterTest setup not documented as identical8.3%25%Vals AIAs of 10/26/2026

Vals Finance IndexFinance Agent v2.1 · higher is better65.4%62.9%Vals AIAs of 10/26/2026

Code MigrationCode Quality · higher is betterTest setup not documented as identical4.411 / 53.992 / 5Vals AIAs of 10/18/2026

Code Migration v1.1Code Quality · higher is better3.7%3.5%Vals AIAs of 10/20/2026

EMBDCF · higher is betterTest setup not documented as identical51%53%Vals AIAs of 10/20/2026

EMB v1.1DCF · higher is better59.9%59.7%Vals AIAs of 10/26/2026

Finance Agent (v2)Comparables · higher is betterTest setup not documented as identical46.1%47.5%Vals AIAs of 10/20/2026

Finance Agent v2.1Comparables · higher is better55.8%59.8%Vals AIAs of 10/26/2026

Legal Research BenchBusiness & Commercial · All-pass · higher is better39.5%44.2%Vals AIAs of 10/26/2026

LMArena Code Arena WebDevWeb development · higher is better1,6191,666LMArenaAs of 10/27/2026

Tax Agent BenchCurrent & Temporal Analysis · higher is better39%56.4%Vals AIAs of 10/26/2026

Terminal-Bench 4.0ML · higher is betterTest setup not documented as identical24.2%42.4%Vals AIAs of 10/26/2026

Vals Finance IndexTax Agent Bench · higher is better26.6%44.4%Vals AIAs of 10/26/2026

EMBLBO · higher is betterTest setup not documented as identical54.2%57.8%Vals AIAs of 10/20/2026

EMB v1.1LBO · higher is better56.4%62.5%Vals AIAs of 10/26/2026

Finance Agent (v2)Disclosure Analysis · higher is betterTest setup not documented as identical61.3%66.3%Vals AIAs of 10/20/2026

Finance Agent v2.1Disclosure Analysis · higher is better76.9%70.3%Vals AIAs of 10/26/2026

Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is better86.7%87.8%Vals AIAs of 10/26/2026

Tax Agent BenchCurrent & Temporal Analysis · higher is better71.9%75%Vals AIAs of 10/26/2026

Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identical18.5%18.5%Vals AIAs of 10/26/2026

EMBM&A · higher is betterTest setup not documented as identical57.8%62.3%Vals AIAs of 10/20/2026

EMB v1.1M&A · higher is better75.7%73.1%Vals AIAs of 10/26/2026

Finance Agent (v2)Earnings Analysis · higher is betterTest setup not documented as identical72.9%75.3%Vals AIAs of 10/20/2026

Finance Agent v2.1Earnings Analysis · higher is better88.3%93%Vals AIAs of 10/26/2026

Legal Research BenchCivil Litigation · All-pass · higher is better48.1%37%Vals AIAs of 10/26/2026

Tax Agent BenchFact-Pattern Analysis · higher is better27.2%55.8%Vals AIAs of 10/26/2026

Terminal-Bench 4.0Science · higher is betterTest setup not documented as identical14.3%38.1%Vals AIAs of 10/26/2026

EMBMisc · higher is betterTest setup not documented as identical53.6%60.9%Vals AIAs of 10/20/2026

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DeepSeek-V4.1-Flashvs.DeepSeek V4.1 Flash 1017

DeepSeek-V4.1-Flash

DeepSeek V4.1 Flash 1017

Where is the difference?

See for yourself: same task, one attempt

Pelican on a bicycle

All data side by side

Shared benchmarks

Compare another matchup

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