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GLM 5V Turbo vs GPT-4.1

GLM 5V Turbo leads GPT-4.1 on the Artificial Analysis Intelligence Index, 23.5 to 12.7, and GLM 5V Turbo costs 2.0x less per output token ($4.00 vs $8.00 per million). Updated October 22, 2026; 50 benchmarks have a result for both.

Replace GLM 5V Turbo Replace GPT-4.1
GLM 5V TurboZ.ai
Coding
No data
Overall
No data
Output $/M
$4.00
50
GPT-4.1OpenAI
Coding
No data
Overall
36.5
Output $/M
$8.00
0
vs boards won of 50 shared

GLM 5V Turbo or GPT-4.1: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick GLM 5V Turbo for output tokens 2.0x cheaper ($4.00 vs $8.00 per million).

Model AGLM 5V TurboZ.aiNot benchmarked1 independent benchmarkNo cost per solved taskModel BGPT-4.1OpenAINot benchmarkedNo coding benchmark$0.37 per solved task
Shared results
50
GLM 5V Turbo only
15
GPT-4.1 only
45
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
GLM 5V Turbo not benchmarked, GPT-4.1 not benchmarked.
Widest category
Agentic work, 51.5 points apart on average over 1 shared benchmark.
Widest single gap
τ²-Bench Telecom: GLM 5V Turbo 98.5% against GPT-4.1 47.1%, 51.5 points apart on a 0 to 100 scale.
Output price
GLM 5V Turbo $4.00 against GPT-4.1 $8.00 per million output tokens, 2.0x apart.
Context window
GLM 5V Turbo takes 203K tokens, GPT-4.1 1.05M.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGLM 5V TurboBarsGPT-4.1Ties
Coding30
Intelligence10
Agentic work10
Reasoning70
Math20
Knowledge40
Web design60
General260
All shared boards500
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
Aider polyglotNot measured52.4%Only GPT-4.1 measured
SWE-bench VerifiedNot measured39.6%Only GPT-4.1 measured
SWE-bench MultimodalNot measured31.1%Only GPT-4.1 measured
LMArena WebDev1402Not measuredOnly GLM 5V Turbo measured
LiveCodeBench (Vals AI)Not measured54.7%Only GPT-4.1 measured
LiveCodeBench (Artificial Analysis run)Not measured45.7%Only GPT-4.1 measured
Terminal-Bench Hard (Artificial Analysis run)32.6%13.6%GLM 5V Turbo
WeirdMLNot measured39.0%Only GPT-4.1 measured
ALE-BenchNot measured558.1Only GPT-4.1 measured
LMArena Text: coding14661390GLM 5V Turbo
LMArena Text: software and IT14601391GLM 5V Turbo
LMArena WebDev: React1386Not measuredOnly GLM 5V Turbo measured
LMArena WebDev: HTML1356Not measuredOnly GLM 5V Turbo measured
LMArena WebDev: from an image1425Not measuredOnly GLM 5V Turbo measured
SciCodeNot measured4.6%Only GPT-4.1 measured
Neither model has a result on the other 28 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
AA Intelligence Index23.512.7GLM 5V Turbo
Epoch Capabilities IndexNot measured136.7Only GPT-4.1 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
Design Arena: agents building web apps1124Not measuredOnly GLM 5V Turbo measured
Design Arena: agents building full-stack apps1149Not measuredOnly GLM 5V Turbo measured
Design Arena: agents building mobile apps1134Not measuredOnly GLM 5V Turbo measured
Design Arena: agents building Android apps1267Not measuredOnly GLM 5V Turbo measured
Design Arena: agents building Godot games957Not measuredOnly GLM 5V Turbo measured
Design Arena: agents building games1102Not measuredOnly GLM 5V Turbo measured
Design Arena: HTML slides1060Not measuredOnly GLM 5V Turbo measured
Design Arena: PowerPoint slides1126Not measuredOnly GLM 5V Turbo measured
τ²-Bench Telecom98.5%47.1%GLM 5V Turbo
Berkeley Function Calling Leaderboard (BFCL)Not measured54.0%Only GPT-4.1 measured
BrowseComp-PlusNot measured36.4%Only GPT-4.1 measured
Neither model has a result on the other 31 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
Reasoning benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
GPQA DiamondNot measured65.4%Only GPT-4.1 measured
MMMU Pro (Vals AI)Not measured72.4%Only GPT-4.1 measured
GPQA Diamond (Artificial Analysis run)80.9%66.6%GLM 5V Turbo
Humanity's Last Exam (Artificial Analysis run)17.1%4.2%GLM 5V Turbo
GPQA Diamond (Epoch AI run)Not measured66.9%Only GPT-4.1 measured
ARC-AGINot measured5.5%Only GPT-4.1 measured
ARC-AGI-2Not measured0.4%Only GPT-4.1 measured
SimpleBenchNot measured27.0%Only GPT-4.1 measured
Chess puzzlesNot measured3.0%Only GPT-4.1 measured
LMArena Text: hard prompts14431384GLM 5V Turbo
LMArena Text: expert14531364GLM 5V Turbo
LMArena Text: hard prompts in English14561393GLM 5V Turbo
LMArena Vision: diagrams12861215GLM 5V Turbo
LMArena Vision: homework12731248GLM 5V Turbo
Kagi LLM BenchmarkNot measured52.3%Only GPT-4.1 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
AIMENot measured39.6%Only GPT-4.1 measured
MATH 500 (Vals AI)Not measured87.2%Only GPT-4.1 measured
MGSM (Vals AI)Not measured87.7%Only GPT-4.1 measured
AA Math IndexNot measured34.7Only GPT-4.1 measured
AIME 2025 (Artificial Analysis run)Not measured34.7%Only GPT-4.1 measured
OTIS Mock AIMENot measured38.3%Only GPT-4.1 measured
FrontierMath, tiers 1 to 3Not measured6.0%Only GPT-4.1 measured
MATH level 5Not measured83.0%Only GPT-4.1 measured
LMArena Text: math14421369GLM 5V Turbo
LMArena Text: mathematical work14471360GLM 5V Turbo
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
MMLU ProNot measured80.5%Only GPT-4.1 measured
LegalBench (Vals AI)Not measured83.1%Only GPT-4.1 measured
CaseLaw (Vals AI)Not measured69.9%Only GPT-4.1 measured
CorpFin (Vals AI)Not measured63.0%Only GPT-4.1 measured
TaxEval (Vals AI)Not measured75.1%Only GPT-4.1 measured
MortgageTax (Vals AI)Not measured65.9%Only GPT-4.1 measured
MedQA (Vals AI)Not measured91.2%Only GPT-4.1 measured
MMLU Pro (Artificial Analysis run)Not measured80.6%Only GPT-4.1 measured
SimpleQA VerifiedNot measured31.1%Only GPT-4.1 measured
GeoBenchNot measured72.0%Only GPT-4.1 measured
LMArena Text: science14481382GLM 5V Turbo
LMArena Text: medicine and healthcare14331379GLM 5V Turbo
LMArena Text: legal and government14361399GLM 5V Turbo
LMArena Text: business and finance14351369GLM 5V Turbo
FACTS Benchmark SuiteNot measured45.8%Only GPT-4.1 measured
PRBench FinanceNot measured34.3%Only GPT-4.1 measured
PRBench LegalNot measured36.5%Only GPT-4.1 measured
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index60
Web design benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
Design Arena: websites12301038GLM 5V Turbo
Design Arena: UI components1210998GLM 5V Turbo
Design Arena: game dev12181079GLM 5V Turbo
Design Arena: data viz12021104GLM 5V Turbo
Design Arena: 3D1208849GLM 5V Turbo
Design Arena: all code categories12271025GLM 5V Turbo
Design Arena: SVG1150Not measuredOnly GLM 5V Turbo measured
Design Arena: ASCII art1116Not measuredOnly GLM 5V Turbo measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index260
General benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
IFBench61.1%43.0%GLM 5V Turbo
Long context reasoning (AA-LCR)70.3%68.3%GLM 5V Turbo
DTBenchNot measured68.3%Only GPT-4.1 measured
LMCANot measured25.6%Only GPT-4.1 measured
Fiction.LiveBenchNot measured63.9%Only GPT-4.1 measured
LMArena Text14371383GLM 5V Turbo
LMArena Text: instruction following14231367GLM 5V Turbo
LMArena Text: creative writing14171363GLM 5V Turbo
LMArena Vision12641210GLM 5V Turbo
LMArena Text: English14541392GLM 5V Turbo
LMArena Text: non-English14201370GLM 5V Turbo
LMArena Text: Chinese14911382GLM 5V Turbo
LMArena Text: German14221381GLM 5V Turbo
LMArena Text: JapaneseNot measured1319Only GPT-4.1 measured
LMArena Text: Korean13971338GLM 5V Turbo
LMArena Text: French14431382GLM 5V Turbo
LMArena Text: Spanish14521376GLM 5V Turbo
LMArena Text: Russian14321377GLM 5V Turbo
LMArena Text: Polish14321389GLM 5V Turbo
LMArena Text: multi-turn14311397GLM 5V Turbo
LMArena Text: longer queries14381385GLM 5V Turbo
LMArena Text: writing and language14201371GLM 5V Turbo
LMArena Text: entertainment and media14071365GLM 5V Turbo
LMArena Vision: English12741209GLM 5V Turbo
LMArena Vision: Chinese13291226GLM 5V Turbo
LMArena Vision: reading text12701218GLM 5V Turbo
LMArena Vision: humor12681196GLM 5V Turbo
LMArena Vision: captioning12641207GLM 5V Turbo
LMArena Vision: recognizing things12411208GLM 5V Turbo
LMArena Vision: creative writing12521210GLM 5V Turbo
LMArena Document1416Not measuredOnly GLM 5V Turbo measured
MultiChallengeNot measured39.4%Only GPT-4.1 measured
Neither model has a result on the other 16 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GLM 5V Turbo and GPT-4.1
BenchmarkGLM 5V TurboGPT-4.1Leader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

GLM 5V Turbo$0.0032Fits in one request
GPT-4.1$0.0060Fits in one request

GLM 5V Turbo costs less

Repository review

50K input + 3K output tokens

GLM 5V Turbo$0.072Fits in one request
GPT-4.1$0.124Fits in one request

GLM 5V Turbo costs less

Agent loop

200K input + 10K output tokens

GLM 5V Turbo$0.280Exceeds the context window
GPT-4.1$0.480Fits in one request

GLM 5V Turbo costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of GLM 5V Turbo and GPT-4.1
SpecificationZ.ai GLM 5V TurboOpenAI GPT-4.1
MakerZ.aiOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedApril 1, 2026April 14, 2025
Context window203K1.05M
Input $/Mtok$1.20$2.00
Output $/Mtok$4.00$8.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it10
Cost per solved taskNot computable$0.37
SourceOpenRouter listingOpenRouter listing

Questions

Is GLM 5V Turbo better than GPT-4.1 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GLM 5V Turbo for output tokens 2.0x cheaper ($4.00 vs $8.00 per million).

Which is cheaper, GLM 5V Turbo or GPT-4.1?

GLM 5V Turbo costs $1.20 per million input tokens and $4.00 per million output tokens; GPT-4.1 costs $2.00 and $8.00. Cost per solved task is known for GPT-4.1 only.

Which has the bigger context window, GLM 5V Turbo or GPT-4.1?

GPT-4.1, with 1.05M tokens against 203K.

How many benchmarks is the GLM 5V Turbo vs GPT-4.1 comparison based on?

50 benchmarks have a result for both models as of October 22, 2026. GLM 5V Turbo's coding index rests on 1 independent benchmark and GPT-4.1's on 0. Where only one model has a result, the page says so instead of naming a winner.

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