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GLM 4.5 vs GLM 5V Turbo

Updated October 21, 2026. 41 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

GLM 4.5Z.ai
Coding
64.2
Overall
12.8
Output $/M
$2.20
3
GLM 5V TurboZ.ai
Coding
28.8
Overall
23.5
Output $/M
$4.00
38
vs boards won of 41 shared

Decision reading

Pick GLM 4.5 for coding: it scores 64.2 on the Vibe Coding Index against 28.8 for GLM 5V Turbo.

Pick GLM 5V Turbo when the context window is larger, 203K against 131K tokens, or when what matters is Terminal-Bench Hard (Artificial Analysis run) or LMArena Text: coding, where it leads.

Shared results
41
GLM 4.5 only
19
GLM 5V Turbo only
24
Like-for-like categories
8 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

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 4.5 64.2 from 1 benchmark, GLM 5V Turbo 28.8 from 1 benchmark.
Widest category
Agentic work, 55.6 points apart on average over 1 shared benchmark.
Widest single gap
τ²-Bench Telecom: GLM 4.5 43.0% against GLM 5V Turbo 98.5%, 55.6 points apart on a 0 to 100 scale.
Output price
GLM 4.5 $2.20 against GLM 5V Turbo $4.00 per million output tokens, 1.8x apart.
Context window
GLM 4.5 takes 131K tokens, GLM 5V Turbo 203K.

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 4.5BarsGLM 5V TurboTies
Coding03
Intelligence01
Agentic work01
Reasoning05
Math02
Knowledge22
Web design07
General117
All shared boards338
CodingLike-for-likeFour of these boards feed the Vibe Coding Index03
Coding benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
SWE-bench Verified64.2%Not measuredOnly GLM 4.5 measured
LMArena WebDevNot measured1402Only GLM 5V Turbo measured
LiveCodeBench (Vals AI)67.5%Not measuredOnly GLM 4.5 measured
LiveCodeBench (Artificial Analysis run)73.8%Not measuredOnly GLM 4.5 measured
Terminal-Bench Hard (Artificial Analysis run)22.0%32.6%GLM 5V Turbo
WeirdML40.6%Not measuredOnly GLM 4.5 measured
ALE-Bench344.8Not measuredOnly GLM 4.5 measured
LMArena Text: coding14341466GLM 5V Turbo
LMArena Text: software and IT14401460GLM 5V Turbo
LMArena WebDev: ReactNot measured1386Only GLM 5V Turbo measured
LMArena WebDev: HTMLNot measured1356Only GLM 5V Turbo measured
LMArena WebDev: from an imageNot measured1425Only GLM 5V Turbo measured
Neither model has a result on the other 26 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
AA Intelligence Index12.823.5GLM 5V Turbo
Neither model has a result on the other 1 board here
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
Design Arena: agents building web appsNot measured1124Only GLM 5V Turbo measured
Design Arena: agents building full-stack appsNot measured1149Only GLM 5V Turbo measured
Design Arena: agents building mobile appsNot measured1134Only GLM 5V Turbo measured
Design Arena: agents building Android appsNot measured1267Only GLM 5V Turbo measured
Design Arena: agents building Godot gamesNot measured957Only GLM 5V Turbo measured
Design Arena: agents building gamesNot measured1102Only GLM 5V Turbo measured
Design Arena: HTML slidesNot measured1120Only GLM 5V Turbo measured
Design Arena: PowerPoint slidesNot measured1152Only GLM 5V Turbo measured
τ²-Bench Telecom43.0%98.5%GLM 5V Turbo
Neither model has a result on the other 30 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
Reasoning benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
GPQA Diamond72.2%Not measuredOnly GLM 4.5 measured
GPQA Diamond (Artificial Analysis run)78.2%80.9%GLM 5V Turbo
Humanity's Last Exam (Artificial Analysis run)13.0%17.1%GLM 5V Turbo
LMArena Text: hard prompts14291443GLM 5V Turbo
LMArena Text: expert14331453GLM 5V Turbo
LMArena Text: hard prompts in English14291456GLM 5V Turbo
LMArena Vision: diagramsNot measured1286Only GLM 5V Turbo measured
LMArena Vision: homeworkNot measured1273Only GLM 5V Turbo measured
Neither model has a result on the other 13 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
AIME86.7%Not measuredOnly GLM 4.5 measured
MATH 500 (Vals AI)94.0%Not measuredOnly GLM 4.5 measured
MGSM (Vals AI)90.8%Not measuredOnly GLM 4.5 measured
AA Math Index73.7Not measuredOnly GLM 4.5 measured
AIME 2025 (Artificial Analysis run)73.7%Not measuredOnly GLM 4.5 measured
LMArena Text: math14271442GLM 5V Turbo
LMArena Text: mathematical work14301447GLM 5V Turbo
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index22
Knowledge benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
MMLU Pro81.2%Not measuredOnly GLM 4.5 measured
LegalBench (Vals AI)75.6%Not measuredOnly GLM 4.5 measured
CorpFin (Vals AI)61.0%Not measuredOnly GLM 4.5 measured
TaxEval (Vals AI)72.4%Not measuredOnly GLM 4.5 measured
MedQA (Vals AI)90.0%Not measuredOnly GLM 4.5 measured
MMLU Pro (Artificial Analysis run)83.5%Not measuredOnly GLM 4.5 measured
LMArena Text: science14441448GLM 5V Turbo
LMArena Text: medicine and healthcare14551433GLM 4.5
LMArena Text: legal and government14381436GLM 4.5
LMArena Text: business and finance14201435GLM 5V Turbo
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index07
Web design benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
Design Arena: websites11701230GLM 5V Turbo
Design Arena: UI components11441213GLM 5V Turbo
Design Arena: game dev11451219GLM 5V Turbo
Design Arena: data viz11591202GLM 5V Turbo
Design Arena: 3D11701209GLM 5V Turbo
Design Arena: all code categories11651228GLM 5V Turbo
Design Arena: SVG10961151GLM 5V Turbo
Design Arena: ASCII artNot measured1118Only 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 index117
General benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
IFBench44.1%61.1%GLM 5V Turbo
Long context reasoning (AA-LCR)52.7%70.3%GLM 5V Turbo
Creative writing (Lech Mazur)73.4%Not measuredOnly GLM 4.5 measured
LMArena Text14301437GLM 5V Turbo
LMArena Text: instruction following14041423GLM 5V Turbo
LMArena Text: creative writing13951417GLM 5V Turbo
LMArena VisionNot measured1264Only GLM 5V Turbo measured
LMArena Text: English14371454GLM 5V Turbo
LMArena Text: non-English14171420GLM 5V Turbo
LMArena Text: Chinese14651491GLM 5V Turbo
LMArena Text: German14071422GLM 5V Turbo
LMArena Text: Japanese1415Not measuredOnly GLM 4.5 measured
LMArena Text: Korean13801397GLM 5V Turbo
LMArena Text: French14181443GLM 5V Turbo
LMArena Text: Spanish14541452GLM 4.5
LMArena Text: Russian14131432GLM 5V Turbo
LMArena Text: Polish14221432GLM 5V Turbo
LMArena Text: multi-turn14151431GLM 5V Turbo
LMArena Text: longer queries14121438GLM 5V Turbo
LMArena Text: writing and language14031420GLM 5V Turbo
LMArena Text: entertainment and media14041407GLM 5V Turbo
LMArena Vision: EnglishNot measured1274Only GLM 5V Turbo measured
LMArena Vision: ChineseNot measured1329Only GLM 5V Turbo measured
LMArena Vision: reading textNot measured1270Only GLM 5V Turbo measured
LMArena Vision: humorNot measured1268Only GLM 5V Turbo measured
LMArena Vision: captioningNot measured1264Only GLM 5V Turbo measured
LMArena Vision: recognizing thingsNot measured1241Only GLM 5V Turbo measured
LMArena Vision: creative writingNot measured1252Only GLM 5V Turbo measured
LMArena DocumentNot measured1416Only GLM 5V Turbo measured
Neither model has a result on the other 17 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GLM 4.5 and GLM 5V Turbo
BenchmarkGLM 4.5GLM 5V TurboLeader
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 4.5$0.0017Fits in one request
GLM 5V Turbo$0.0032Fits in one request

GLM 4.5 costs less

Repository review

50K input + 3K output tokens

GLM 4.5$0.037Fits in one request
GLM 5V Turbo$0.072Fits in one request

GLM 4.5 costs less

Agent loop

200K input + 10K output tokens

GLM 4.5$0.142Exceeds the context window
GLM 5V Turbo$0.280Exceeds the context window

GLM 4.5 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 4.5 and GLM 5V Turbo
SpecificationZ.ai GLM 4.5Z.ai GLM 5V Turbo
MakerZ.aiZ.ai
WeightsOpen weightsNo public weights listed
ReleasedJuly 25, 2025April 1, 2026
Context window131K203K
Input $/Mtok$0.60$1.20
Output $/Mtok$2.20$4.00
Coding index64.228.8
Independent measurements behind it11
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GLM 4.5 better than GLM 5V Turbo for coding?

Pick GLM 4.5 for coding: it scores 64.2 on the Vibe Coding Index against 28.8 for GLM 5V Turbo. Pick GLM 5V Turbo when the context window is larger, 203K against 131K tokens, or when what matters is Terminal-Bench Hard (Artificial Analysis run) or LMArena Text: coding, where it leads.

Which is cheaper, GLM 4.5 or GLM 5V Turbo?

GLM 4.5 costs $0.60 per million input tokens and $2.20 per million output tokens; GLM 5V Turbo costs $1.20 and $4.00. Cost per solved task is known for neither of them.

Which has the bigger context window, GLM 4.5 or GLM 5V Turbo?

GLM 5V Turbo, with 203K tokens against 131K.

How many benchmarks is the GLM 4.5 vs GLM 5V Turbo comparison based on?

41 benchmarks have a result for both models as of October 21, 2026. GLM 4.5's coding index rests on 1 independent benchmark and GLM 5V Turbo's on 1. Where only one model has a result, the page says so instead of naming a winner.

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