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GLM 5 vs GPT-4

GLM 5 leads GPT-4 on the Artificial Analysis Intelligence Index, 27.9 to 6.7, and GLM 5 costs 18.8x less per output token ($3.20 vs $60.00 per million). Updated October 22, 2026; 33 benchmarks have a result for both.

Replace GLM 5 Replace GPT-4
GLM 5Z.ai
Coding
41.7
Overall
54.3
Output $/M
$3.20
33
GPT-4OpenAI
Coding
No data
Overall
No data
Output $/M
$60.00
0
vs boards won of 33 shared

GLM 5 or GPT-4: which to pick

Only GLM 5 has a coding score, 41.7 on the Vibe Coding Index; GPT-4 has none, so the two cannot be ranked on coding.

Compare them on price, context and the boards below.

Model AGLM 5Z.ai41.7/1003 independent benchmarks$0.63 per solved taskModel BGPT-4OpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
33
GLM 5 only
43
GPT-4 only
12
Like-for-like categories
6 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 5 41.7 from 3 benchmarks, GPT-4 not benchmarked.
Widest category
Knowledge, 47.5 points apart on average over 4 shared benchmarks.
Widest single gap
LMArena Text: Korean: GLM 5 1423 against GPT-4 1087, 56.0 points apart on a 0 to 100 scale.
Output price
GLM 5 $3.20 against GPT-4 $60.00 per million output tokens, 18.8x apart.
Context window
GLM 5 takes 205K tokens, GPT-4 8K.

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 5BarsGPT-4Ties
Coding30
Intelligence20
Reasoning40
Math20
Knowledge40
General180
All shared boards330
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
SWE-bench Verified72.8%22.4%GLM 5
SWE-bench LiteNot measured39.7%Only GPT-4 measured
SWE-bench (full test set)Not measured12.5%Only GPT-4 measured
SWE-bench Multilingual69.7%Not measuredOnly GLM 5 measured
LMArena WebDev1435Not measuredOnly GLM 5 measured
AA Coding IndexNot measured13.1Only GPT-4 measured
LiveCodeBench (Vals AI)81.9%Not measuredOnly GLM 5 measured
SWE-bench Verified (Vals AI)71.4%Not measuredOnly GLM 5 measured
Vibe Code Bench (Vals AI)23.4%Not measuredOnly GLM 5 measured
Terminal-Bench Hard (Artificial Analysis run)43.2%Not measuredOnly GLM 5 measured
Terminal-Bench52.4%Not measuredOnly GLM 5 measured
WeirdML48.2%Not measuredOnly GLM 5 measured
ALE-Bench765.6Not measuredOnly GLM 5 measured
LMArena Text: coding14611209GLM 5
LMArena Text: software and IT14601195GLM 5
LMArena WebDev: React1424Not measuredOnly GLM 5 measured
LMArena WebDev: HTML1450Not measuredOnly GLM 5 measured
Neither model has a result on the other 22 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
AA Intelligence Index27.96.7GLM 5
Epoch Capabilities Index145.8125.7GLM 5
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Agentic work benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
Design Arena: agents building full-stack apps1123Not measuredOnly GLM 5 measured
Design Arena: agents building mobile apps1136Not measuredOnly GLM 5 measured
Design Arena: agents building Android apps1147Not measuredOnly GLM 5 measured
Design Arena: agents building Godot games1144Not measuredOnly GLM 5 measured
Design Arena: HTML slides1098Not measuredOnly GLM 5 measured
τ²-Bench Telecom98.2%Not measuredOnly GLM 5 measured
Vending-Bench 2$4,432Not measuredOnly GLM 5 measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index40
Reasoning benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
GPQA Diamond83.3%Not measuredOnly GLM 5 measured
GPQA Diamond (Artificial Analysis run)82.0%34.9%GLM 5
Humanity's Last Exam (Artificial Analysis run)29.3%Not measuredOnly GLM 5 measured
GPQA Diamond (Epoch AI run)87.8%Not measuredOnly GLM 5 measured
ARC-AGI44.7%Not measuredOnly GLM 5 measured
ARC-AGI-24.9%Not measuredOnly GLM 5 measured
SimpleBench53.2%Not measuredOnly GLM 5 measured
BIG-Bench HardNot measured75.1%Only GPT-4 measured
LMArena Text: hard prompts14521200GLM 5
LMArena Text: expert14541149GLM 5
LMArena Text: hard prompts in English14601209GLM 5
Kagi LLM Benchmark75.0%Not measuredOnly GLM 5 measured
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
AIME91.7%Not measuredOnly GLM 5 measured
OTIS Mock AIME80.0%Not measuredOnly GLM 5 measured
GSM8KNot measured92.0%Only GPT-4 measured
LMArena Text: math14401230GLM 5
LMArena Text: mathematical work14511228GLM 5
Neither model has a result on the other 8 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
MMLU Pro86.0%Not measuredOnly GLM 5 measured
LegalBench (Vals AI)84.1%Not measuredOnly GLM 5 measured
CaseLaw (Vals AI)52.5%Not measuredOnly GLM 5 measured
CorpFin (Vals AI)62.9%Not measuredOnly GLM 5 measured
TaxEval (Vals AI)70.0%Not measuredOnly GLM 5 measured
MedQA (Vals AI)94.3%Not measuredOnly GLM 5 measured
MMLU Pro (Artificial Analysis run)Not measured56.2%Only GPT-4 measured
MMLUNot measured86.4%Only GPT-4 measured
AI2 Reasoning ChallengeNot measured96.3%Only GPT-4 measured
LMArena Text: science14601177GLM 5
LMArena Text: medicine and healthcare14551145GLM 5
LMArena Text: legal and government14531191GLM 5
LMArena Text: business and finance14301145GLM 5
Neither model has a result on the other 5 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
Design Arena: websites1247Not measuredOnly GLM 5 measured
Design Arena: UI components1227Not measuredOnly GLM 5 measured
Design Arena: game dev1234Not measuredOnly GLM 5 measured
Design Arena: data viz1228Not measuredOnly GLM 5 measured
Design Arena: 3D1228Not measuredOnly GLM 5 measured
Design Arena: all code categories1246Not measuredOnly GLM 5 measured
Design Arena: SVG1168Not measuredOnly GLM 5 measured
Design Arena: ASCII art1147Not measuredOnly GLM 5 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
IFBench72.3%33.2%GLM 5
Long context reasoning (AA-LCR)75.7%Not measuredOnly GLM 5 measured
DTBenchNot measured62.7%Only GPT-4 measured
LMCANot measured17.1%Only GPT-4 measured
CL-bench18.7%Not measuredOnly GLM 5 measured
HellaSwagNot measured95.3%Only GPT-4 measured
WinoGrandeNot measured87.5%Only GPT-4 measured
LMArena Text14461206GLM 5
LMArena Text: instruction following14281201GLM 5
LMArena Text: creative writing14381191GLM 5
LMArena Text: English14581220GLM 5
LMArena Text: non-English14301194GLM 5
LMArena Text: Chinese15111184GLM 5
LMArena Text: German14471198GLM 5
LMArena Text: Japanese14161137GLM 5
LMArena Text: Korean14231087GLM 5
LMArena Text: French14561220GLM 5
LMArena Text: Spanish14541197GLM 5
LMArena Text: Russian14361195GLM 5
LMArena Text: Polish14341265GLM 5
LMArena Text: multi-turn14561206GLM 5
LMArena Text: longer queries14461190GLM 5
LMArena Text: writing and language14371219GLM 5
LMArena Text: entertainment and media14261184GLM 5
Neither model has a result on the other 22 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GLM 5 and GPT-4
BenchmarkGLM 5GPT-4Leader
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 5$0.0026Fits in one request
GPT-4$0.060Fits in one request

GLM 5 costs less

Repository review

50K input + 3K output tokens

GLM 5$0.060Fits in one request
GPT-4$1.68Exceeds the context window

GLM 5 costs less

Agent loop

200K input + 10K output tokens

GLM 5$0.232Exceeds the context window
GPT-4$6.60Exceeds the context window

GLM 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 5 and GPT-4
SpecificationZ.ai GLM 5OpenAI GPT-4
MakerZ.aiOpenAI
WeightsOpen weightsNo public weights listed
ReleasedFebruary 11, 2026May 28, 2023
Context window205K8K
Input $/Mtok$1.00$30.00
Output $/Mtok$3.20$60.00
Coding index41.7Not benchmarked
Independent measurements behind it30
Cost per solved task$0.63Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GLM 5 better than GPT-4 for coding?

Only GLM 5 has a coding score, 41.7 on the Vibe Coding Index; GPT-4 has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.

Which is cheaper, GLM 5 or GPT-4?

GLM 5 costs $1.00 per million input tokens and $3.20 per million output tokens; GPT-4 costs $30.00 and $60.00. Cost per solved task is known for GLM 5 only.

Which has the bigger context window, GLM 5 or GPT-4?

GLM 5, with 205K tokens against 8K.

How many benchmarks is the GLM 5 vs GPT-4 comparison based on?

33 benchmarks have a result for both models as of October 22, 2026. GLM 5's coding index rests on 3 independent benchmarks and GPT-4's on 0. Where only one model has a result, the page says so instead of naming a winner.

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