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DeepSeek V4.1 Flash 1017vs.GLM-5.2

Which one is better?

DeepSeek V4.1 Flash 1017 is clearly ahead in the overall index and is cheaper too: GLM-5.2 costs 9.3 times (input) and 7.3 times (output) as much per token.

IntelligenceOverall index, 0 to 100 · higher is better
64

DeepSeek V4.1 Flash 1017

Rank 14 to 22

23

GLM-5.2

Rank 41 to 47

SpeedTokens per second · higher is better
178

DeepSeek V4.1 Flash 1017

fast

96

GLM-5.2

fairly slow

PriceDollars per 1M tokens · lower is better
$0.26

DeepSeek V4.1 Flash 1017

cheap

$2.15

GLM-5.2

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.

GLM-5.2

Subscription

No Z.ai subscription includes this model. Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 30 plans in Germany.

Via API

$1.40 input, $4.40 output per 1M tokens according to the provider; the price index has listed it at $1.30 and $4.40 since Oct 26, 2026.

Note
There is a successor: GLM-5.3 (rank 23 to 29, same price).

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: 5GLM-5.2 ahead: 0level: 1too little data: 4of 10 areas

DeepSeek V4.1 Flash 1017GLM-5.20 to 100, higher is better
Areas in the overall index
CodingDeepSeek V4.1 Flash 1017 aheadDeepSeek V4.1 Flash 1017: 72GLM-5.2: 23
ReasoninglevelDeepSeek V4.1 Flash 1017: 45GLM-5.2: 22
Mathematicsonly GLM-5.2 has a scoreDeepSeek V4.1 Flash 1017: not enough dataGLM-5.2: 29
KnowledgeDeepSeek V4.1 Flash 1017 aheadDeepSeek V4.1 Flash 1017: 33GLM-5.2: 13
AgentsDeepSeek V4.1 Flash 1017 aheadDeepSeek V4.1 Flash 1017: 75GLM-5.2: 24
Generalonly GLM-5.2 has a scoreDeepSeek V4.1 Flash 1017: not enough dataGLM-5.2: 20
Multimodalonly DeepSeek V4.1 Flash 1017 has a scoreDeepSeek V4.1 Flash 1017: 55GLM-5.2: not enough data
Specialist fields
FinanceDeepSeek V4.1 Flash 1017 aheadDeepSeek V4.1 Flash 1017: 69GLM-5.2: 34
LegalDeepSeek V4.1 Flash 1017 aheadDeepSeek V4.1 Flash 1017: 76GLM-5.2: 28
Healthonly GLM-5.2 has a scoreDeepSeek V4.1 Flash 1017: not enough dataGLM-5.2: 19

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

GLM-5.2

Output withheld for safety

Reasoning (requested): high

Current attempt
Run date
Oct 5, 2026
API provider
openrouter
Requested API model
z-ai/glm-5.2
API model reported in response
z-ai/glm-5.2
Reasoning setting
high
Pinned endpoint
Z.AI | z-ai/glm-5.2-20260616
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Failed
Response time
31.4 s

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

Earlier attempts (3)
  • Oct 2, 2026API request failedReasoning setting: high
  • Oct 1, 2026API request failedReasoning setting: high
  • Sep 7, 2026API request failedReasoning setting: high
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.

MetricDeepSeek V4.1 Flash 1017GLM-5.2
Intelligence
Overall index0 to 100, higher is better6423
RankRank 14 to 22 of 95Rank 41 to 47 of 95
Price per 1M tokens
Inputwhat you send$0.15$1.40
Outputwhat the model writes$0.60$4.40
Speed
Tokens per second17896
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,570 A4 pages1 M tokens≈ 1,500 A4 pages
Knowledge cutoffn/an/a
ReleasedOct 17, 2026Jun 16, 2026
AvailabilityOpen SourceOpen Source
Open weightsyesyes
  • 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 Flash 1017B: GLM-5.2

Code MigrationOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.2%GLM-5.2: 37.9%Vals AIAs of 10/18/2026
CritPt v2Overall · higher is betterDeepSeek V4.1 Flash 1017: 24.0%GLM-5.2: 20.9%Artificial AnalysisAs of 10/29/2026
EMBOverall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 61.8%GLM-5.2: 61.5%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 57%GLM-5.2: 49.7%Vals AIAs of 10/20/2026
GDPval-AAOverall · higher is betterDeepSeek V4.1 Flash 1017: 1,745.77 eloGLM-5.2: 1,382.01 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 45.2%GLM-5.2: 31.3%Vals AIAs of 10/26/2026
LMArena Code Arena WebDevOverall · higher is betterDeepSeek V4.1 Flash 1017: 1,666GLM-5.2: 1,606LMArenaAs of 10/27/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 87.7%GLM-5.2: 64%Vals AIAs of 10/26/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 35.6%GLM-5.2: 27.2%Vals AIAs of 10/18/2026
EMBComps · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 49.8%GLM-5.2: 54.9%Vals AIAs of 10/20/2026
Show 40 more benchmarks
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 58.4%GLM-5.2: 46.3%Vals AIAs of 10/20/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 59.1%GLM-5.2: 39.4%Vals AIAs of 10/26/2026
LMArena Code Arena WebDevHTML development · higher is betterDeepSeek V4.1 Flash 1017: 1,705GLM-5.2: 1,568LMArenaAs of 10/27/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 70%GLM-5.2: 70%Vals AIAs of 10/18/2026
EMBDataroom · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 82.8%GLM-5.2: 83.4%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 45.2%GLM-5.2: 38%Vals AIAs of 10/20/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 91.3%GLM-5.2: 86%Vals AIAs of 10/26/2026
LMArena Code Arena WebDevReact development · higher is betterDeepSeek V4.1 Flash 1017: 1,672GLM-5.2: 1,619LMArenaAs of 10/27/2026
Code MigrationCode Quality · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 3.992 / 5GLM-5.2: 3.981 / 5Vals AIAs of 10/18/2026
EMBDCF · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 53%GLM-5.2: 53%Vals AIAs of 10/20/2026
Finance Agent (v2)Comparables · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 47.5%GLM-5.2: 44.8%Vals AIAs of 10/20/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 44.2%GLM-5.2: 27.9%Vals AIAs of 10/26/2026
LMArena Code Arena WebDevWeb development · higher is betterDeepSeek V4.1 Flash 1017: 1,666GLM-5.2: 1,606LMArenaAs of 10/27/2026
EMBLBO · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 57.8%GLM-5.2: 51.8%Vals AIAs of 10/20/2026
Finance Agent (v2)Disclosure Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 66.3%GLM-5.2: 61.6%Vals AIAs of 10/20/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 87.8%GLM-5.2: 87.5%Vals AIAs of 10/26/2026
EMBM&A · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.3%GLM-5.2: 63.9%Vals AIAs of 10/20/2026
Finance Agent (v2)Earnings Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 75.3%GLM-5.2: 66.6%Vals AIAs of 10/20/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 37%GLM-5.2: 25.9%Vals AIAs of 10/26/2026
EMBMisc · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 60.9%GLM-5.2: 60.8%Vals AIAs of 10/20/2026
Finance Agent (v2)Financial Modeling · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 22.8%GLM-5.2: 12.9%Vals AIAs of 10/20/2026
Legal Research BenchCivil Litigation · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 84.9%GLM-5.2: 87%Vals AIAs of 10/26/2026
EMBOperating · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 66.1%GLM-5.2: 62.9%Vals AIAs of 10/20/2026
Finance Agent (v2)General Qualitative Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 74.1%GLM-5.2: 68.7%Vals AIAs of 10/20/2026
Legal Research BenchConstitutional / Civil Rights · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 42.1%GLM-5.2: 28.9%Vals AIAs of 10/26/2026
EMBScratch · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 68.5%GLM-5.2: 66.7%Vals AIAs of 10/20/2026
Finance Agent (v2)General Quantitative Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 79.2%GLM-5.2: 65.5%Vals AIAs of 10/20/2026
Legal Research BenchConstitutional / Civil Rights · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 86.6%GLM-5.2: 86.1%Vals AIAs of 10/26/2026
EMBTemplate · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 54.7%GLM-5.2: 55.8%Vals AIAs of 10/20/2026
Finance Agent (v2)Market Analysis · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 62.7%GLM-5.2: 61.5%Vals AIAs of 10/20/2026
Legal Research BenchCriminal · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 35.1%GLM-5.2: 22.8%Vals AIAs of 10/26/2026
Finance Agent (v2)Precedents · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 26.5%GLM-5.2: 19.4%Vals AIAs of 10/20/2026
Legal Research BenchCriminal · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 83.2%GLM-5.2: 80.1%Vals AIAs of 10/26/2026
Legal Research BenchFamily · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 27.3%GLM-5.2: 22.7%Vals AIAs of 10/26/2026
Legal Research BenchFamily · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 74.2%GLM-5.2: 69.3%Vals AIAs of 10/26/2026
Legal Research BenchHealth · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 66.7%GLM-5.2: 50%Vals AIAs of 10/26/2026
Legal Research BenchHealth · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 96.2%GLM-5.2: 91.3%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · All-pass · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 36.4%GLM-5.2: 27.3%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 79%GLM-5.2: 78.1%Vals AIAs of 10/26/2026
Legal Research BenchOverall · Weighted partial credit · higher is betterTest setup not documented as identicalDeepSeek V4.1 Flash 1017: 86.3%GLM-5.2: 82.9%Vals AIAs of 10/26/2026

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