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AnthropicDeepSeekLLM matchup

Claude Sonnet 4.6vs.DeepSeek-V4.1-Flash

Which one is better?

DeepSeek-V4.1-Flash performs better than Claude Sonnet 4.6 and is cheaper: Claude Sonnet 4.6 costs 20 times (input) and 25 times (output) as much.

DeepSeek-V4.1-Flash ahead
IntelligenceOverall index, 100 points = average
86.4

Claude Sonnet 4.6

Rank 44

99.7

DeepSeek-V4.1-Flash

Rank 29

DeepSeek-V4.1-Flash faster
SpeedTokens per second
60

Claude Sonnet 4.6

176

DeepSeek-V4.1-Flash

DeepSeek-V4.1-Flash cheaper
Price$ per 1M tokens
$6

Claude Sonnet 4.6

$0.26

DeepSeek-V4.1-Flash

Sonnet 4.6 more popular
Popularity0 to 100
54

Claude Sonnet 4.6

Rank 72 of 876

38

DeepSeek-V4.1-Flash

Rank 312 of 876

Choose Claude Sonnet 4.6 for

No clear advantage

Choose DeepSeek-V4.1-Flash for

AgentsHealthGeneralCodingProductivityLegalFinanceMultimodal (not certain)

Where is the difference?

Strengths at a glance

Sonnet 4.6DeepSeek-V4.1-FlashMedian of all ranked models

9011070CodingDeepSeek-V4.1-FlashAgentsDeepSeek-V4.1-FlashGeneralDeepSeek-V4.1-FlashMultimodalslightlyDeepSeek-V4.1-FlashFinanceDeepSeek-V4.1-FlashLegalDeepSeek-V4.1-FlashHealthDeepSeek-V4.1-Flash
CodingDeepSeek-V4.1-Flash ahead
Sonnet 4.686.9Rank 53
DeepSeek-V4.1-Flash98.8Rank 30
Median of ranked models84.1

95 % range: Sonnet 4.6 80.1 to 93.7, DeepSeek-V4.1-Flash 91.4 to 106.3.

AreaSonnet 4.6DeepSeek-V4.1-Flash

The same values and verdicts as the bars below. In the close-up the net starts at 70 points, just below the weaker model's lowest value; the reference group average is 100. Not in the net because a model has no own value there or the data are too thin: Reasoning, Mathematics, Knowledge.

DeepSeek-V4.1-Flash is ahead in 6 of 10 areas, Sonnet 4.6 in none.

too little data: 3DeepSeek-V4.1-Flash slightly ahead: 1DeepSeek-V4.1-Flash ahead: 6

Areas in the overall index
AgentsDeepSeek-V4.1-Flash +2086.7 to 106.4
GeneralDeepSeek-V4.1-Flash +1483.1 to 97.1
CodingDeepSeek-V4.1-Flash +1286.9 to 98.8
Multimodalleaning DeepSeek-V4.1-Flashnot certain · 3 and 2 tests
Reasoningonly Sonnet 4.6 has a score
Mathematicsonly DeepSeek-V4.1-Flash has a score
Knowledgeonly Sonnet 4.6 has a score
Specialist fields
HealthDeepSeek-V4.1-Flash +1778.4 to 95.5
LegalDeepSeek-V4.1-Flash +1090.3 to 100.8
FinanceDeepSeek-V4.1-Flash +994.5 to 103.7

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Show 3 more areas that do not count toward the overall index
ProductivityDeepSeek-V4.1-Flash +1189.1 to 99.7
Cybersecurityonly DeepSeek-V4.1-Flash has a score
Educationonly DeepSeek-V4.1-Flash has a score

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Claude Sonnet 4.6 vs. DeepSeek-V4.1-Flash at the same effort

Both models measured at the same reasoning efforts. This shows whether a lead comes from the model or only from more compute.

maxDeepSeek-V4.1-Flash ahead
Sonnet 4.6 86.4 vs. DeepSeek-V4.1-Flash 99.7 · Gap 14.3 · Test series 4
Overall index (max vs. max)DeepSeek-V4.1-Flash ahead
Sonnet 4.6 86.4 vs. DeepSeek-V4.1-Flash 99.7

Gap and verdict compare only the Artificial Analysis test series in which both models are measured at that effort. Tied below 3 points, ahead only beyond two standard errors. The single values rest on all test series of each model, so their difference can deviate from the gap.

Which model for which task?

Everyday tasks, translated from the area values above. Each row names the values it rests on.

Writing and debugging codeDeepSeek-V4.1-FlashCoding 86.9 to 98.8
Maths and data analysisopenMathematics without a score for Sonnet 4.6, Reasoning without a score for DeepSeek-V4.1-Flash
Facts and researchopenKnowledge without a score for DeepSeek-V4.1-Flash
Agents and workflowsDeepSeek-V4.1-FlashAgents 86.7 to 106.4
Fast chat repliesDeepSeek-V4.1-Flash60 to 176 tokens per second
Security analysisopenCybersecurity without a score for Sonnet 4.6
Many requests on a small budgetDeepSeek-V4.1-Flash$6 to $0.26 per 1M tokens
Finance, legal and medical textsDeepSeek-V4.1-FlashFinance 94.5 to 103.7, Legal 90.3 to 100.8, Health 78.4 to 95.5
Images, screenshots and PDFsleaning DeepSeek-V4.1-FlashMultimodal 88.2 to 95.7

See for yourself: same task, one attempt

SVG short test

One SVG task with the same fixed settings for every model, without hidden thinking.

Prompt

Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.

Claude Sonnet 4.6

Claude Sonnet 4.6: SVG short test

Oct 14, 2026 · $0.0113

Test details
Test run
Oct 14, 2026
Provider
anthropic
API model
anthropic/claude-sonnet-4.6
Output
738 tokens
Reasoning
API reports 0 reasoning tokens
Cost of the attempt
$0.0113
Test round
43b8c5c46830

DeepSeek-V4.1-Flash

DeepSeek-V4.1-Flash: SVG short test

Oct 14, 2026 · $0.0001

Test details
Test run
Oct 14, 2026
Provider
decart/fp4
API model
deepseek/deepseek-v4.1-flash
Output
590 tokens
Reasoning
API reports 0 reasoning tokens
Cost of the attempt
$0.0001
Test round
43b8c5c46830
Earlier tests

Pelican on a bicycle

Prompt

Generate an SVG of a pelican riding a bicycle

Task origin: Simon Willison

Claude Sonnet 4.6

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

Oct 6, 2026 · 106 s · $0.12

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

Test details
Run date
Oct 6, 2026
API provider
openrouter
Requested API model
anthropic/claude-sonnet-4.6
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
8,192 tokens
Cost of the attempt
$0.1229
Response time
106 s
API model reported in response
anthropic/claude-sonnet-4.6
Pinned endpoint
Anthropic | anthropic/claude-4.6-sonnet-20260217
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Failed

Earlier attempts (2)

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

DeepSeek-V4.1-Flash

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

Oct 5, 2026 · 26 s · $0.0049

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

Test details
Run date
Oct 5, 2026
API provider
openrouter
Requested API model
deepseek/deepseek-v4.1-flash
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
8,191 tokens
Cost of the attempt
$0.0049
Response time
25.8 s
API model reported in response
deepseek/deepseek-v4.1-flash
Pinned endpoint
DeepSeek | deepseek/deepseek-v4.1-flash-20260910
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Failed

Earlier attempts (2)

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

Claude Sonnet 4.6 and DeepSeek-V4.1-Flash in the overall index

Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.

Overall index (Gradually Meta-Score v4)

20 of 92 models

4 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.

Claude Opus 5.5max126.1
Gemini 4 Carbonhigh125.8
Claude Fable 5.1max123.8
Claude Sonnet 5.5max122.8
Gemini 4 Argonhigh122.3
GPT-6 Astramax121.3
GPT-6.1 Solmax119.2
Muse Wonder Fullmax118.3
Claude Opus 5max117.2
Muse Wondermax113.4
Kimi K3.1 Promax112.9
Claude Fable 5max112.5
GPT-6 Solmax110.5
GPT-5.6 Solmax108.7
Muse Spark 1.3max107.4
Gemini 3.7 Flashhigh107.1
DeepSeek V4.1 Flash 1017max106.6
Gemini 3.8 Flashhigh106.5
DeepSeek-V4.1-Flashmax99.7
Claude Sonnet 4.6max86.4

Popularity compared

How often the models are searched for, used and mentioned, on a scale from 0 to 100.

Claude Sonnet 4.6 is more popular than DeepSeek-V4.1-Flash: 54 to 38 out of 100.

Over time

Weekly values from October 18, 2026 to November 6, 2026

Claude Sonnet 4.6DeepSeek-V4.1-Flash

All data side by side

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

MetricClaude Sonnet 4.6DeepSeek-V4.1-Flash
Intelligence
Overall indexpoints, 100 = reference group average, higher is better86.499.7
RankRank 44 of 92Rank 29 of 92
Price per 1M tokens
Inputwhat you send$3$0.15
Outputwhat the model writes$15$0.60
Speed
Tokens per second60176
Popularity
Popularitysearch, usage and mentions, 0 to 10054Rank 72 of 87638Rank 312 of 876
Technical
Context windowhow much text the model reads at once1 M tokens≈ 1,500 A4 pages1 M tokens≈ 1,500 A4 pages
Knowledge cutoffAugust 2025n/a
ReleasedFebruary 2026Sep 10, 2026
AvailabilityActiveActive
Open weightsnoyes
  • 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.

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

Is there a better choice?

Successor of Sonnet 4.6Claude Sonnet 5

Overall index 92.1, rank 40$2 input and $10 output per 1M tokens

DeepSeek-V4.1-Flash vs. Claude Sonnet 5
Successor of DeepSeek-V4.1-FlashDeepSeek V4.1 Flash 1017

Overall index 106.6, rank 17$0.15 input and $0.60 output per 1M tokens

Sonnet 4.6 vs. DeepSeek V4.1 Flash 1017
Cheaper than DeepSeek-V4.1-FlashClaude Haiku 5.5

Overall index 103.4, rank 20$0.10 input and $0.50 output per 1M tokens

DeepSeek-V4.1-Flash vs. Claude Haiku 5.5

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: Claude Sonnet 4.6B: DeepSeek-V4.1-Flash

AA-AnalystAgentOverall · higher is betterClaude Sonnet 4.6: 20.0%DeepSeek-V4.1-Flash: 35.0%Artificial AnalysisAs of 11/06/2026
Code MigrationOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 39.9%DeepSeek-V4.1-Flash: 45.6%Vals AIAs of 10/29/2026
EMBOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 60.2%DeepSeek-V4.1-Flash: 57.2%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 51.0%DeepSeek-V4.1-Flash: 53.5%Vals AIAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 4.6: 1,240.5 eloDeepSeek-V4.1-Flash: 1,600.0 eloArtificial AnalysisAs of 11/06/2026
ITBench-AA (SRE)Overall · higher is betterClaude Sonnet 4.6: 39.8%DeepSeek-V4.1-Flash: 46.9%Artificial AnalysisAs of 11/06/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 38.5%DeepSeek-V4.1-Flash: 41.3%Vals AIAs of 11/05/2026
LegalBenchOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 82.1%DeepSeek-V4.1-Flash: 83.3%Vals AIAs of 10/13/2026
LMArena Code Arena WebDevOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,523DeepSeek-V4.1-Flash: 1,619LMArenaAs of 10/28/2026
LMArena Text, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,472DeepSeek-V4.1-Flash: 1,476LMArenaAs of 10/28/2026
Show 54 more benchmarks
LMArena Vision, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,275DeepSeek-V4.1-Flash: 1,261LMArenaAs of 10/19/2026
MMMU-ProOverall · higher is betterClaude Sonnet 4.6: 73.3%DeepSeek-V4.1-Flash: 77.0%Artificial AnalysisAs of 11/06/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 0.5%DeepSeek-V4.1-Flash: 0.5%Vals AIAs of 11/05/2026
Public Benefits Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 62.4%DeepSeek-V4.1-Flash: 64.3%Vals AIAs of 10/12/2026
SkillsBenchOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 49.1%DeepSeek-V4.1-Flash: 69.8%Vals AIAs of 10/29/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 25.8%DeepSeek-V4.1-Flash: 26.6%Vals AIAs of 11/05/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 51.5%DeepSeek-V4.1-Flash: 84.7%Vals AIAs of 11/05/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 30.3%DeepSeek-V4.1-Flash: 37.5%Vals AIAs of 10/29/2026
EMBComps · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 61.5%DeepSeek-V4.1-Flash: 43.9%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 48.9%DeepSeek-V4.1-Flash: 49.2%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 43.9%DeepSeek-V4.1-Flash: 53.0%Vals AIAs of 11/05/2026
LegalBenchConclusion Tasks · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 88.0%DeepSeek-V4.1-Flash: 89.1%Vals AIAs of 10/13/2026
LMArena Code Arena WebDevHTML development · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,526DeepSeek-V4.1-Flash: 1,613LMArenaAs of 10/28/2026
LMArena Text, Style ControlBusiness, management and finance · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,482DeepSeek-V4.1-Flash: 1,478LMArenaAs of 10/28/2026
LMArena Vision, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,302DeepSeek-V4.1-Flash: 1,311LMArenaAs of 10/19/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 2.0%DeepSeek-V4.1-Flash: 16.5%Vals AIAs of 11/05/2026
SkillsBenchNo Skills · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 27.8%DeepSeek-V4.1-Flash: 61.7%Vals AIAs of 10/29/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 10.0%DeepSeek-V4.1-Flash: 3.3%Vals AIAs of 11/05/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 68.6%DeepSeek-V4.1-Flash: 70.0%Vals AIAs of 10/29/2026
EMBDataroom · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 78.5%DeepSeek-V4.1-Flash: 73.9%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 38.8%DeepSeek-V4.1-Flash: 41.1%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 86.8%DeepSeek-V4.1-Flash: 89.1%Vals AIAs of 11/05/2026
LegalBenchInterpretation Tasks · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 82.5%DeepSeek-V4.1-Flash: 80.4%Vals AIAs of 10/13/2026
LMArena Code Arena WebDevImage to WebDev · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,529DeepSeek-V4.1-Flash: 1,606LMArenaAs of 10/19/2026
LMArena Text, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,510DeepSeek-V4.1-Flash: 1,523LMArenaAs of 10/28/2026
LMArena Vision, Style ControlCreative writing with images · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,266DeepSeek-V4.1-Flash: 1,254LMArenaAs of 10/19/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 0.5%DeepSeek-V4.1-Flash: 0.5%Vals AIAs of 11/05/2026
SkillsBenchWith Skills · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 49.1%DeepSeek-V4.1-Flash: 69.8%Vals AIAs of 10/29/2026
Tax Agent BenchControversy & Precedence Analysis (weighted pass) · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 57.9%DeepSeek-V4.1-Flash: 52.8%Vals AIAs of 11/05/2026
Code MigrationCode Quality · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 3.997 / 5DeepSeek-V4.1-Flash: 4.411 / 5Vals AIAs of 10/29/2026
EMBDCF · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 38.3%DeepSeek-V4.1-Flash: 51.0%Vals AIAs of 10/20/2026
Finance Agent (v2)Comparables · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 41.0%DeepSeek-V4.1-Flash: 46.1%Vals AIAs of 10/29/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 34.9%DeepSeek-V4.1-Flash: 39.5%Vals AIAs of 11/05/2026
LegalBenchIssue Tasks · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 86.6%DeepSeek-V4.1-Flash: 88.8%Vals AIAs of 10/13/2026
LMArena Code Arena WebDevReact development · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,512DeepSeek-V4.1-Flash: 1,629LMArenaAs of 10/28/2026
LMArena Text, Style ControlCoding · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,528DeepSeek-V4.1-Flash: 1,523LMArenaAs of 10/28/2026
LMArena Vision, Style ControlDiagram understanding · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,306DeepSeek-V4.1-Flash: 1,293LMArenaAs of 10/19/2026
ProgramBenchRaw Pass Rate · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 59.1%DeepSeek-V4.1-Flash: 72.0%Vals AIAs of 11/05/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 33.2%DeepSeek-V4.1-Flash: 39.0%Vals AIAs of 11/05/2026
EMBLBO · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 52.5%DeepSeek-V4.1-Flash: 54.2%Vals AIAs of 10/20/2026
Finance Agent (v2)Disclosure Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 65.8%DeepSeek-V4.1-Flash: 61.3%Vals AIAs of 10/29/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 88.0%DeepSeek-V4.1-Flash: 86.7%Vals AIAs of 11/05/2026
LegalBenchRhetoric Tasks · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 79.5%DeepSeek-V4.1-Flash: 80.1%Vals AIAs of 10/13/2026
LMArena Code Arena WebDevWeb development · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,523DeepSeek-V4.1-Flash: 1,619LMArenaAs of 10/28/2026
LMArena Text, Style ControlCreative writing · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,449DeepSeek-V4.1-Flash: 1,441LMArenaAs of 10/28/2026
LMArena Vision, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,283DeepSeek-V4.1-Flash: 1,268LMArenaAs of 10/19/2026
Tax Agent BenchCurrent & Temporal Analysis (weighted pass) · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 66.1%DeepSeek-V4.1-Flash: 71.9%Vals AIAs of 11/05/2026
EMBM&A · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 70.5%DeepSeek-V4.1-Flash: 57.8%Vals AIAs of 10/20/2026
Finance Agent (v2)Earnings Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 65.1%DeepSeek-V4.1-Flash: 72.9%Vals AIAs of 10/29/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 29.6%DeepSeek-V4.1-Flash: 48.1%Vals AIAs of 11/05/2026
LegalBenchRule Tasks · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 74.1%DeepSeek-V4.1-Flash: 78.0%Vals AIAs of 10/13/2026
LMArena Text, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,482DeepSeek-V4.1-Flash: 1,488LMArenaAs of 10/28/2026
LMArena Vision, Style ControlHomework · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 1,302DeepSeek-V4.1-Flash: 1,307LMArenaAs of 10/19/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 4.6: 23.3%DeepSeek-V4.1-Flash: 27.2%Vals AIAs of 11/05/2026

More comparisons

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  5. 5GPT-6 Luna vs. DeepSeek-V4.1-Flash
  6. 6GPT-6 Sol vs. DeepSeek-V4.1-Flash
  7. 7Claude Sonnet 4.6 vs. Gemini 3.8 Flash
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  9. 9Claude Opus 5.5 vs. Claude Sonnet 4.6
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  2. 11Grok 4.7 vs. DeepSeek-V4.1-Flash
  3. 12Claude Sonnet 5 vs. DeepSeek-V4.1-Flash
  4. 13GPT-5.6 Terra vs. DeepSeek-V4.1-Flash
  5. 14DeepSeek-V4.1-Flash vs. Qwen 3.8 Max 0902
  6. 15Claude Sonnet 4.6 vs. GPT-6 Luna
  7. 16Claude Sonnet 4.6 vs. GLM-5.3-Flash
  8. 17Claude Opus 5 vs. DeepSeek-V4.1-Flash
  9. 18Claude Opus 4.6 vs. DeepSeek-V4.1-Flash
  10. 19DeepSeek-V4.1-Flash vs. GLM-5.3-Flash
  11. 20Claude Sonnet 5.5 vs. Claude Sonnet 4.6
  12. 21DeepSeek-V4.1-Flash vs. Mistral Large 4
  13. 22DeepSeek-V4-Pro vs. DeepSeek-V4.1-Flash
  14. 23DeepSeek-V4.1-Flash vs. GLM-5.2
  15. 24Claude Sonnet 4.6 vs. Qwen 3.8 27B
  16. 25GPT-6.1 Sol vs. DeepSeek-V4.1-Flash
  17. 26Claude Sonnet 4.6 vs. GPT-6 Sol
  18. 27Gemini 3.1 Pro Preview vs. DeepSeek-V4.1-Flash
  19. 28DeepSeek-V4.1-Flash vs. MiMo-V2.5-Pro
  20. 29Claude Haiku 5.5 vs. Claude Sonnet 4.6
  21. 30DeepSeek-V4.1-Flash vs. GLM-5.3
  22. 31Gemini 3.5 Flash-Lite vs. DeepSeek-V4.1-Flash
  23. 32Gemini 3.6 Flash vs. DeepSeek-V4.1-Flash
  24. 33Claude Opus 4.8 vs. DeepSeek-V4.1-Flash
  25. 34Claude Sonnet 4.6 vs. Gemini 4 Argon
  26. 35Claude Haiku 4.5 vs. DeepSeek-V4.1-Flash
  27. 36DeepSeek-V4.1-Flash vs. Kimi K3
  28. 37Claude Sonnet 4.6 vs. Grok 4.7
  29. 38GPT-5.6 Sol vs. DeepSeek-V4.1-Flash
  30. 39Claude Sonnet 4.6 vs. GPT-6 Astra
  31. 40Claude Fable 5 vs. DeepSeek-V4.1-Flash
  32. 41Claude Sonnet 4.6 vs. GPT-6.1 Sol
  33. 42GPT-5.6 Luna vs. DeepSeek-V4.1-Flash
  34. 43Claude Sonnet 4.6 vs. DeepSeek V4.1 Flash 1017
  35. 44Gemini 4 Argon vs. DeepSeek-V4.1-Flash
  36. 45Claude Sonnet 4.6 vs. GPT-5.6 Terra
  37. 46DeepSeek-V4.1-Flash vs. Qwen 3.8 27B
  38. 47Claude Sonnet 4.6 vs. GLM-5.3
  39. 48Grok 4.6 vs. DeepSeek-V4.1-Flash
  40. 49Claude Opus 4.6 vs. Claude Sonnet 4.6
  41. 50DeepSeek-V4.1-Flash vs. Mistral Medium 3.5
  42. 51DeepSeek-V4.1-Flash vs. MiMo-V2.5
  43. 52Claude Sonnet 4.5 vs. DeepSeek-V4.1-Flash
  44. 53Claude Fable 5.1 vs. DeepSeek-V4.1-Flash
  45. 54Claude Opus 4.5 vs. DeepSeek-V4.1-Flash
  46. 55Claude Opus 4.7 vs. DeepSeek-V4.1-Flash
  47. 56DeepSeek-V4.1-Flash vs. GLM-5.1
  48. 57Claude Opus 4.7 vs. Claude Sonnet 4.6
  49. 58Claude Sonnet 4.6 vs. Claude Haiku 4.5
  50. 59Claude Opus 4.5 vs. Claude Sonnet 4.6
  51. 60DeepSeek-V4.1-Flash vs. Mistral Large 3
  52. 61Gemini 3.5 Flash vs. DeepSeek-V4.1-Flash
  53. 62GPT-6.1 Terra vs. DeepSeek-V4.1-Flash
  54. 63Claude Sonnet 4.6 vs. GPT-6.1 Terra
  55. 64Muse Wonder vs. DeepSeek-V4.1-Flash
  56. 65DeepSeek-V4.1-Flash vs. Kimi K3.1 Pro
  57. 66Claude Sonnet 4.6 vs. Gemini 4 Carbon