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DeepSeek V4.1 Flash 1017vs.Kimi K3.1 Pro

Which one is better?

Kimi K3.1 Pro is clearly ahead in the overall index, but costs 13.3 times (input) and 16.7 times (output) as much per token.

IntelligenceOverall index, 0 to 100 · higher is better
64

DeepSeek V4.1 Flash 1017

Rank 14 to 22

80

Kimi K3.1 Pro

Rank 10 to 13

SpeedTokens per second · higher is better
178

DeepSeek V4.1 Flash 1017

fast

36

Kimi K3.1 Pro

slow

PriceDollars per 1M tokens · lower is better
$0.26

DeepSeek V4.1 Flash 1017

cheap

$4

Kimi K3.1 Pro

fairly expensive

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.

Kimi K3.1 Pro

Subscription

At Moonshot AI from ≈ €20.14 a month (Kimi Plus, with limited credits). 4 plans in Germany.

Via API

$2 input, $10 output per 1M tokens.

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 1017 ahead: 0Kimi K3.1 Pro ahead: 4level: 3too little data: 2of 9 areas

DeepSeek V4.1 Flash 1017Kimi K3.1 Pro0 to 100, higher is better
Areas in the overall index
CodingKimi K3.1 Pro aheadDeepSeek V4.1 Flash 1017: 72Kimi K3.1 Pro: 85
ReasoningKimi K3.1 Pro aheadDeepSeek V4.1 Flash 1017: 45Kimi K3.1 Pro: 80
Mathematicsonly Kimi K3.1 Pro has a scoreDeepSeek V4.1 Flash 1017: not enough dataKimi K3.1 Pro: 81
KnowledgeKimi K3.1 Pro aheadDeepSeek V4.1 Flash 1017: 33Kimi K3.1 Pro: 85
AgentslevelDeepSeek V4.1 Flash 1017: 75Kimi K3.1 Pro: 80
Generalonly Kimi K3.1 Pro has a scoreDeepSeek V4.1 Flash 1017: not enough dataKimi K3.1 Pro: 74
MultimodalKimi K3.1 Pro aheadDeepSeek V4.1 Flash 1017: 55Kimi K3.1 Pro: 75
Specialist fields
FinancelevelDeepSeek V4.1 Flash 1017: 69Kimi K3.1 Pro: 62
LegallevelDeepSeek V4.1 Flash 1017: 76Kimi K3.1 Pro: 68

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 1017

Not tested yet

Kimi K3.1 Pro

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)

All data side by side

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

MetricDeepSeek V4.1 Flash 1017Kimi K3.1 Pro
Intelligence
Overall index0 to 100, higher is better6480
RankRank 14 to 22 of 95Rank 10 to 13 of 95
Price per 1M tokens
Inputwhat you send$0.15$2
Outputwhat the model writes$0.60$10
Speed
Tokens per second17836
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,570 A4 pages1.05 M tokens≈ 1,570 A4 pages
Knowledge cutoffn/an/a
ReleasedOct 17, 2026Oct 23, 2026
AvailabilityOpen SourceActive
Open weightsyesn/a
  • 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
  • Kimi K3.1 Pro, API price listed by Artificial Analysis: $2 input, $10 output, and $0.20 cached input per 1 million tokens. Kimi's official API publishes CNY rates separately. Source
  • Kimi K3.1 Pro, Official API pricing: K3.1 Pro: CNY 13 input, CNY 68 output, CNY 13 cache write, and CNY 1.30 cache hit per million tokens. Source
  • Kimi K3.1 Pro, Highspeed API pricing: CNY 26 input, CNY 136 output, CNY 26 cache write, and CNY 1.30 cache hit per million tokens. Source
  • Kimi K3.1 Pro, International API pricing in USD: The international Kimi platform lists $2 input, $10 output, $2 cache write and $0.20 cache hit per million tokens. Highspeed costs $4/$20/$4/$0.20. Checked October 29, 2026. Separately documented CNY tariffs remain separate observations. 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 Flash 1017B: Kimi K3.1 Pro

EMB v1.1Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 69.2%Kimi K3.1 Pro: 70%Vals AIAs of 10/26/2026
Finance Agent v2.1Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.9%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Overall · Task fully resolved · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 14.2%Kimi K3.1 Pro: 11.7%Vals AIAs of 10/26/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 45.2%Kimi K3.1 Pro: 37.5%Vals AIAs of 10/26/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.4%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 31.8%Kimi K3.1 Pro: 63.6%Vals AIAs of 10/26/2026
Vals Finance IndexOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 60.9%Kimi K3.1 Pro: 56%Vals AIAs of 10/26/2026
Vals IndexOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 61.3%Kimi K3.1 Pro: 62.5%Vals AIAs of 10/27/2026
Vals Legal IndexOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 71.9%Kimi K3.1 Pro: 67%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 87.7%Kimi K3.1 Pro: 84.9%Vals AIAs of 10/26/2026
Show 54 more benchmarks
EMB v1.1Comps · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 70.8%Kimi K3.1 Pro: 67.4%Vals AIAs of 10/26/2026
Finance Agent v2.1Adjustments · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 66.8%Kimi K3.1 Pro: 57.4%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Antitrust Competition · Criteria passed · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 93.5%Kimi K3.1 Pro: 90.4%Vals AIAs of 10/26/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 59.1%Kimi K3.1 Pro: 56.1%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 23.3%Kimi K3.1 Pro: 10%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 6.7%Kimi K3.1 Pro: 40%Vals AIAs of 10/26/2026
Vals Finance IndexEMB v1.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 69.2%Kimi K3.1 Pro: 70%Vals AIAs of 10/26/2026
Vals IndexCode Migration v1.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 68.5%Kimi K3.1 Pro: 59.7%Vals AIAs of 10/27/2026
Vals Legal IndexBusiness & Commercial · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 68%Kimi K3.1 Pro: 59.8%Vals AIAs of 10/26/2026
EMB v1.1Dataroom · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 86.5%Kimi K3.1 Pro: 87.6%Vals AIAs of 10/26/2026
Finance Agent v2.1All-Pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 51.3%Kimi K3.1 Pro: 48.4%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Antitrust Competition · Task fully resolved · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 30%Kimi K3.1 Pro: 0%Vals AIAs of 10/26/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 91.3%Kimi K3.1 Pro: 81.9%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 73.2%Kimi K3.1 Pro: 58%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 25%Kimi K3.1 Pro: 58.3%Vals AIAs of 10/26/2026
Vals Finance IndexFinance Agent v2.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.9%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/26/2026
Vals IndexEMB v1.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 69.2%Kimi K3.1 Pro: 70%Vals AIAs of 10/27/2026
Vals Legal IndexCivil Negligence · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 64.6%Kimi K3.1 Pro: 62.4%Vals AIAs of 10/26/2026
EMB v1.1DCF · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 59.7%Kimi K3.1 Pro: 64.4%Vals AIAs of 10/26/2026
Finance Agent v2.1Comparables · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 59.8%Kimi K3.1 Pro: 63.9%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Arbitration International Dispute Resolution · Criteria passed · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 91.8%Kimi K3.1 Pro: 94.1%Vals AIAs of 10/26/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.2%Kimi K3.1 Pro: 27.9%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 56.4%Kimi K3.1 Pro: 36.7%Vals AIAs of 10/26/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 42.4%Kimi K3.1 Pro: 81.8%Vals AIAs of 10/26/2026
Vals Finance IndexTax Agent Bench · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.4%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/26/2026
Vals IndexFinance Agent v2.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.9%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/27/2026
Vals Legal IndexCriminal · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.5%Kimi K3.1 Pro: 60.3%Vals AIAs of 10/26/2026
EMB v1.1LBO · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.5%Kimi K3.1 Pro: 55.2%Vals AIAs of 10/26/2026
Finance Agent v2.1Disclosure Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 70.3%Kimi K3.1 Pro: 70.1%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Arbitration International Dispute Resolution · Task fully resolved · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 10%Kimi K3.1 Pro: 10%Vals AIAs of 10/26/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 87.8%Kimi K3.1 Pro: 66.3%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 75%Kimi K3.1 Pro: 64.8%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 18.5%Kimi K3.1 Pro: 55.6%Vals AIAs of 10/26/2026
Vals IndexHLAB-Vals-1.1 · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 14.2%Kimi K3.1 Pro: 11.7%Vals AIAs of 10/27/2026
Vals Legal IndexFamily · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 27.3%Kimi K3.1 Pro: 13.6%Vals AIAs of 10/26/2026
EMB v1.1M&A · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 73.1%Kimi K3.1 Pro: 78.1%Vals AIAs of 10/26/2026
Finance Agent v2.1Earnings Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 93%Kimi K3.1 Pro: 78%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Banking Finance · Criteria passed · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 74.8%Kimi K3.1 Pro: 94.4%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 37%Kimi K3.1 Pro: 29.6%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 55.8%Kimi K3.1 Pro: 27.9%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Science · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 38.1%Kimi K3.1 Pro: 73.8%Vals AIAs of 10/26/2026
Vals IndexLegal Research · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 45.2%Kimi K3.1 Pro: 37.5%Vals AIAs of 10/27/2026
Vals Legal IndexHLAB Criteria Pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 92.7%Kimi K3.1 Pro: 92.5%Vals AIAs of 10/26/2026
EMB v1.1Misc · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 65.7%Kimi K3.1 Pro: 68.1%Vals AIAs of 10/26/2026
Finance Agent v2.1Financial Modeling · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 39.6%Kimi K3.1 Pro: 46%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Banking Finance · Task fully resolved · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 10%Kimi K3.1 Pro: 0%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 84.9%Kimi K3.1 Pro: 75.8%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 72.5%Kimi K3.1 Pro: 68.8%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Security · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 26.7%Kimi K3.1 Pro: 73.3%Vals AIAs of 10/26/2026
Vals IndexTax Agent · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.4%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/27/2026
Vals Legal IndexLabor & Employment · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 90.6%Kimi K3.1 Pro: 90.3%Vals AIAs of 10/26/2026
EMB v1.1Operating · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 66%Kimi K3.1 Pro: 69.3%Vals AIAs of 10/26/2026
Finance Agent v2.1General Qualitative Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 71%Kimi K3.1 Pro: 70.8%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Bankruptcy Restructuring · Criteria passed · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 93.4%Kimi K3.1 Pro: 91.9%Vals AIAs of 10/26/2026

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