Head-to-head comparison

Grok 4.5 vs. GLM-5.2

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series: 183
distinct benchmarks: 21
latest retrieval: 2026-09-04

First modelSecond model

Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for Grok 4.5 and GLM-5.2
Attribute	Grok 4.5	GLM-5.2
Provider	xAI	Z.ai
Released	Jul 16, 2026	Jun 16, 2026
Availability	Active	Open Source
Model type	Proprietary	Open Weights
Parameters	Not published	744B, 40B active
Architecture	Not published	Mixture of Experts
Context window	500,000 tokens	1,000,000 tokens
Knowledge cutoff	February 1, 2026	Not published
Technical sources	Model	Model, Context

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for Grok 4.5 and GLM-5.2
Price type	Grok 4.5	GLM-5.2
API input	$2 ≤200K / $4 >200K	$1.4
API output	$6 ≤200K / $12 >200K	$4.4
Cache read	$0.3 ≤200K / $0.6 >200K	$0.26
Cache write (5 min.)	Not listed	Not listed
Cache write (1 hr.)	Not listed	Not listed
Price verified	08/11/2026 Source	07/30/2026 Source

Grok 4.5GLM-5.2

API inputUSD per 1M tokens, base tier

Grok 4.5$2

GLM-5.2$1.4

API outputUSD per 1M tokens, base tier

Grok 4.5$6

GLM-5.2$4.4

Cache readUSD per 1M tokens, base tier

Grok 4.5$0.3

GLM-5.2$0.26

Key to the marks:better valuebetter, but not conclusivetie

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

Provider pricing for Grok 4.5 and GLM-5.2
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
Grok 4.5	xAI	Direct from developerUp to 200,000 context tokens	Lowest listed price: $2	Lowest listed price: $6	Source08/11/2026
	xAI	Direct from developerAbove 200,000 context tokens	$4	$12	Source08/11/2026
	xAI	Via OpenRouterxai	Lowest listed price: $2	Lowest listed price: $6	Source09/08/2026
	xAI	Via OpenRouterxai/priority	$4	$12	Source09/08/2026
	xAI	Via OpenRouterxai/zdr	Lowest listed price: $2	Lowest listed price: $6	Source09/08/2026
	xAI	Via OpenRouterxai/zdr/priority	$4	$12	Source09/08/2026
GLM-5.2	Z.ai	Direct from developerStandard API	$1.4	$4.4	Source07/30/2026
	Alibaba	Via OpenRouteralibaba/fast	$2.31	$7.26	Source09/08/2026
	Alibaba	Via OpenRouteralibaba/fp8	$0.966	$3.036	Source09/08/2026
	Ambient	Via OpenRouterambient/fp8	$0.6	$2	Source09/08/2026
	AtlasCloud	Via OpenRouteratlas-cloud/fp8	$0.938	$2.948	Source09/08/2026
	Baidu	Via OpenRouterbaidu/fp4	$2.25	$7.88	Source09/08/2026
	Baidu	Via OpenRouterbaidu/fp8	$1.4	$4.4	Source09/08/2026
	BaseTen	Via OpenRouterbaseten/fast#1	$2.1	$6.6	Source09/08/2026
	BaseTen	Via OpenRouterbaseten/fast#2	$2.1	$6.6	Source09/08/2026
	BaseTen	Via OpenRouterbaseten/fp8#1	$1.4	$4.4	Source09/08/2026
	BaseTen	Via OpenRouterbaseten/fp8#2	$1.4	$4.4	Source09/08/2026
	Cloudflare	Via OpenRoutercloudflare	$1.4	$4.4	Source09/08/2026
	CoreWeave	Via OpenRoutercoreweave/fp4	$0.76	$2.42	Source09/08/2026
	Crusoe	Via OpenRoutercrusoe/fp8	$1.4	$4.4	Source09/08/2026
	Decart	Via OpenRouterdecart/fast	$1.89	$5.94	Source09/08/2026
	DeepInfra	Via OpenRouterdeepinfra/fp4	Lowest listed price: $0.4875	Lowest listed price: $1.56	Source09/08/2026
	DigitalOcean	Via OpenRouterdigitalocean	$0.7	$2.2	Source09/08/2026
	Fireworks	Via OpenRouterfireworks	$1.4	$4.4	Source09/08/2026
	Fireworks	Via OpenRouterfireworks/fast	$2.1	$6.6	Source09/08/2026
	Fireworks	Via OpenRouterfireworks/fast-us	$2.1	$6.6	Source09/08/2026
	Friendli	Via OpenRouterfriendli	$1.4	$4.4	Source09/08/2026
	GMICloud	Via OpenRoutergmicloud/fp8	$1.4	$4.4	Source09/08/2026
	Inceptron	Via OpenRouterinceptron/fp4	$1.25	$2.99	Source09/08/2026
	Mistral	Via OpenRoutermistral	$1.4	$4.4	Source09/08/2026
	Mistral	Via OpenRoutermistral/eu	$1.54	$4.84	Source09/08/2026
	Mistral	Via OpenRoutermistral/zdr	$1.4	$4.4	Source09/08/2026
	Novita	Via OpenRouternovita/fp8	$0.6832	$2.1472	Source09/08/2026
	Parasail	Via OpenRouterparasail/fp4	$1.4	$4.4	Source09/08/2026
	Phala	Via OpenRouterphala/fp8	$1.26	$3	Source09/08/2026
	SiliconFlow	Via OpenRoutersiliconflow/fp8	$1.19	$3.74	Source09/08/2026
	StreamLake	Via OpenRouterstreamlake/fp8	$0.6762	$2.1252	Source09/08/2026
	Together	Via OpenRoutertogether	$1.4	$4.4	Source09/08/2026
	Venice	Via OpenRoutervenice/fp8	$1.4	$4.4	Source09/08/2026
	Z.AI	Via OpenRouterz-ai/fp8	$1.4	$4.4	Source09/08/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

Grok 4.5

GLM-5.2

Coding: 79.3 / 93.6 (5 benchmark families)

Reasoning: 100 / 92.1 (1 benchmark family)

Knowledge: 100 / 97.2 (1 benchmark family)

Finance: 95.2 / 99.5 (4 benchmark families)

Legal: 100 / 78.3 (3 benchmark families)

Agentic tasks: 100 / 84.1 (2 benchmark families)

Health: 100 / 95.2 (2 benchmark families)

General: 100 / 0 (1 benchmark family)

21 matched rows from 20 benchmark families were considered. The radar shows 8 of 9 comparable categories.

Grok 4.5GLM-5.2

Code MigrationOverall. Higher is better. No documented setup difference

Grok 4.536.596 %

GLM-5.237.87 %

CorpFin v2Overall. Higher is better. No documented setup difference

Grok 4.567.405 %

GLM-5.266.123 %

EMBOverall. Higher is better. No documented setup difference

Grok 4.552.911 %

GLM-5.261.532 %

Finance Agent (v2)Overall. Higher is better. No documented setup difference

Grok 4.548.349 %

GLM-5.249.699 %

GPQA DiamondOverall. Higher is better. No documented setup difference

Grok 4.592.929 %

GLM-5.285.606 %

Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference

Grok 4.512.917 %

GLM-5.27.083 %

Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference

Grok 4.537.981 %

GLM-5.231.25 %

LegalBenchOverall. Higher is better. No documented setup difference

Grok 4.585.965 %

GLM-5.284.073 %

LiveCodeBench v6Overall. Higher is better. No documented setup difference

Grok 4.587.351 %

GLM-5.269.5 %

LMArena Text, Style ControlOverall. Higher is better. Test setup not documented as identical

Grok 4.51,470.015

GLM-5.21,471.886

MedCodeOverall. Higher is better. No documented setup difference

Grok 4.543.291 %

GLM-5.240.771 %

MedScribeOverall. Higher is better. No documented setup difference

Grok 4.586.884 %

GLM-5.283.534 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Grok 4.5 and GLM-5.2
Benchmark and task	Grok 4.5	GLM-5.2	Source
Code MigrationOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	36.596 %	Winner37.87 %	Vals AI Source details Data as of: 09/03/2026
CorpFin v2Overall Test details No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better	Winner67.405 %	66.123 %	Vals AI Source details Data as of: 08/12/2026
EMBOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	52.911 %	Winner61.532 %	Vals AI Source details Data as of: 09/03/2026
Finance Agent (v2)Overall Test details No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better	48.349 %	Winner49.699 %	Vals AI Source details Data as of: 09/03/2026
GPQA DiamondOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner92.929 %	85.606 %	Vals AI Source details Data as of: 09/01/2026
Harvey's Legal Agent BenchmarkOverall · Task fully resolved Test details No documented difference in the test setupVersion: 1Metric: task resolution rateScoring: Higher is better	Winner12.917 %	7.083 %	Vals AI Source details Data as of: 09/03/2026
Legal Research BenchOverall · All-pass Test details No documented difference in the test setupVersion: 1Metric: all-pass rateScoring: Higher is better	Winner37.981 %	31.25 %	Vals AI Source details Data as of: 09/03/2026
LegalBenchOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner85.965 %	84.073 %	Vals AI Source details Data as of: 09/01/2026
LiveCodeBench v6Overall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner87.351 %	69.5 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlOverall Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control GLM-5.2: Snapshot: glm-5.2-max, Reasoning: max, Harness: Arena text, style controlGrok 4.5: Style-controlled Arena rating from 25,873 anonymous pairwise votes.GLM-5.2: Style-controlled Arena rating from 33,758 anonymous pairwise votes.	1,470.015 95% confidence interval: ±4.921The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	Higher measured value1,471.886 95% confidence interval: ±4.729The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/01/2026
MedCodeOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner43.291 %	40.771 %	Vals AI Source details Data as of: 09/03/2026
MedScribeOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner86.884 %	83.534 %	Vals AI Source details Data as of: 09/03/2026
MMLU-ProOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner89.216 %	86.714 %	Vals AI Source details Data as of: 09/01/2026
ProgramBenchOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	0 %	Winner0.5 %	Vals AI Source details Data as of: 09/01/2026
SkillsBenchOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is betterSettings: Harness: OpenHands	Winner66.034 %	45.077 %	Vals AI Source details Data as of: 09/01/2026
SRE BenchOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner0.763 %	0 %	Vals AI Source details Data as of: 09/01/2026
SWE-bench VerifiedOverall Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner86.6 %	82.8 %	Vals AI Source details Data as of: 09/01/2026
TaxEval v2Overall Test details No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better	71.668 %	Winner73.344 %	Vals AI Source details Data as of: 09/01/2026
Terminal-Bench 2.1Overall Test details No documented difference in the test setupVersion: 2.1Metric: accuracyScoring: Higher is better	Tie67.79 %	Tie67.79 %	Vals AI Source details Data as of: 09/03/2026
Vals IndexOverall Test details No documented difference in the test setupVersion: 2Metric: weighted index scoreScoring: Higher is better	51.528 %	Winner53.122 %	Vals AI Source details Data as of: 09/03/2026
Vibe Code Bench v1.1Overall Test details No documented difference in the test setupVersion: 1.1Metric: accuracyScoring: Higher is betterSettings: Harness: OpenHands	Winner69.002 %	63.961 %	Vals AI Source details Data as of: 09/03/2026
Code MigrationCLI Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	25.461 %	Higher measured value27.16 %	Vals AI Source details Data as of: 08/09/2026
CorpFin v2Exact Pages Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value66.317 %	63.636 %	Vals AI Source details Data as of: 08/06/2026
EMBComps Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	39.489 %	Higher measured value54.922 %	Vals AI Source details Data as of: 08/06/2026
Finance Agent (v2)Adjustments Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	38.568 %	Higher measured value46.305 %	Vals AI Source details Data as of: 08/06/2026
GPQA DiamondFew-Shot CoT Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value92.929 %	83.333 %	Vals AI Source details Data as of: 08/09/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	No direct winner87.319 %	No direct winner87.319 %	Vals AI Source details Data as of: 08/07/2026
Legal Research BenchAdministrative / Regulatory · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value51.515 %	39.394 %	Vals AI Source details Data as of: 08/06/2026
LegalBenchConclusion Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value89.507 %	88.587 %	Vals AI Source details Data as of: 08/09/2026
LiveCodeBench v6Easy Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value99.068 %	97.205 %	Vals AI Source details Data as of: 08/09/2026
LMArena Text, Style ControlBusiness, management and finance Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control GLM-5.2: Snapshot: glm-5.2-max, Reasoning: max, Harness: Arena text, style controlGrok 4.5: Style-controlled Arena rating from 5,122 anonymous pairwise votes.GLM-5.2: Style-controlled Arena rating from 6,609 anonymous pairwise votes.	Higher measured value1,465.734 95% confidence interval: ±8.936The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,460.145 95% confidence interval: ±8.046The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/01/2026
MMLU-ProBiology Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value94.282 %	94.003 %	Vals AI Source details Data as of: 08/09/2026
ProgramBenchAlmost Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 1, Output limit: 64,000 tokens	4.5 %	Higher measured value9.5 %	Vals AI Source details Data as of: 08/09/2026
SkillsBenchNo Skills Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Harness: OpenHands, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Harness: OpenHands, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value48.808 %	32.223 %	Vals AI Source details Data as of: 08/07/2026
SWE-bench Verified<15 min fix Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value93.814 %	88.144 %	Vals AI Source details Data as of: 08/08/2026
TaxEval v2Correctness Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value62.551 %	62.061 %	Vals AI Source details Data as of: 08/09/2026
Terminal-Bench 2.1Easy Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 1, Output limit: 48,000 tokens	91.667 %	Higher measured value100 %	Vals AI Source details Data as of: 08/06/2026
Vals IndexCorpFin v2 Test details Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value68.415 %	66.317 %	Vals AI Source details Data as of: 08/09/2026
Code MigrationCOBOL Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	No direct winner70 %	No direct winner70 %	Vals AI Source details Data as of: 08/09/2026
CorpFin v2Max Fitting Context Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	67.483 %	Higher measured value68.415 %	Vals AI Source details Data as of: 08/06/2026
EMBDataroom Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	64.953 %	Higher measured value83.444 %	Vals AI Source details Data as of: 08/06/2026
Finance Agent (v2)All-Pass Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	36.743 %	Higher measured value38.006 %	Vals AI Source details Data as of: 08/06/2026
GPQA DiamondZero-Shot CoT Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value92.929 %	87.879 %	Vals AI Source details Data as of: 08/09/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	No direct winner0 %	No direct winner0 %	Vals AI Source details Data as of: 08/07/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value88.75 %	85.95 %	Vals AI Source details Data as of: 08/06/2026
LegalBenchInterpretation Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value83.22 %	82.17 %	Vals AI Source details Data as of: 08/09/2026
LiveCodeBench v6Hard Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value73.429 %	37.143 %	Vals AI Source details Data as of: 08/09/2026
LMArena Text, Style ControlChinese Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control GLM-5.2: Snapshot: glm-5.2-max, Reasoning: max, Harness: Arena text, style controlGrok 4.5: Style-controlled Arena rating from 1,737 anonymous pairwise votes.GLM-5.2: Style-controlled Arena rating from 2,084 anonymous pairwise votes.	1,512.8 95% confidence interval: ±15.002The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	Higher measured value1,516.828 95% confidence interval: ±13.481The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/01/2026
MMLU-ProBusiness Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value93.283 %	91.888 %	Vals AI Source details Data as of: 08/09/2026
ProgramBenchFully Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 1, Output limit: 64,000 tokens	0 %	Higher measured value0.5 %	Vals AI Source details Data as of: 08/09/2026
SkillsBenchWith Skills Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Harness: OpenHands, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Harness: OpenHands, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value66.034 %	45.077 %	Vals AI Source details Data as of: 08/07/2026
SWE-bench Verified>4 hours Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	No direct winner66.667 %	No direct winner66.667 %	Vals AI Source details Data as of: 08/08/2026
TaxEval v2Stepwise Reasoning Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	80.785 %	Higher measured value84.628 %	Vals AI Source details Data as of: 08/09/2026
Terminal-Bench 2.1Hard Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 1, Output limit: 48,000 tokens	Higher measured value56.667 %	51.111 %	Vals AI Source details Data as of: 08/06/2026
Vals IndexFinance Agent v2 Test details Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	48.751 %	Higher measured value50.83 %	Vals AI Source details Data as of: 08/09/2026
Code MigrationCode Quality Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: mean reviewer code-quality ratingScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value4.078 / 5	3.981 / 5	Vals AI Source details Data as of: 08/09/2026
CorpFin v2Shared Max Context Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value68.415 %	66.317 %	Vals AI Source details Data as of: 08/06/2026
EMBDCF Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	41.455 %	Higher measured value52.968 %	Vals AI Source details Data as of: 08/06/2026
Finance Agent (v2)Comparables Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	41.768 %	Higher measured value44.78 %	Vals AI Source details Data as of: 08/06/2026
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value92.115 %	91.756 %	Vals AI Source details Data as of: 08/07/2026
Legal Research BenchBusiness & Commercial · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95 GLM-5.2: Reasoning: max, Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens	Higher measured value30.233 %	27.907 %	Vals AI Source details Data as of: 08/06/2026
LegalBenchIssue Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value90.129 %	89.506 %	Vals AI Source details Data as of: 08/09/2026
LiveCodeBench v6Medium Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95	Higher measured value89.556 %	74.151 %	Vals AI Source details Data as of: 08/09/2026
LMArena Text, Style ControlCoding Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control GLM-5.2: Snapshot: glm-5.2-max, Reasoning: max, Harness: Arena text, style controlGrok 4.5: Style-controlled Arena rating from 7,308 anonymous pairwise votes.GLM-5.2: Style-controlled Arena rating from 9,517 anonymous pairwise votes.	Higher measured value1,522.456 95% confidence interval: ±7.787The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,509.051 95% confidence interval: ±7.106The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/01/2026
Key to the marks:better valuebetter, but not conclusivetie

Our model tests

Community tests you can inspect

Compare how the models respond to the same prompt. Each test shows the first attempt, with no subsequent fixes to the generated code. These results do not contribute to an overall score.

Pelican on a bicycle

A community classic for free-form SVG drawing.

Grok 4.5

API access was unavailable for this run. The model was not evaluated.

First attempt

Run date: 7 Sept 2026
API provider: openrouter
Requested API model: x-ai/grok-4.5
Pinned endpoint: xAI | x-ai/grok-4.5-20260708
Reasoning setting: high
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Not run

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

GLM-5.2

API access was unavailable for this run. The model was not evaluated.

First attempt

Run date: 7 Sept 2026
API provider: openrouter
Requested API model: z-ai/glm-5.2
Pinned endpoint: Z.AI | z-ai/glm-5.2-20260616
Reasoning setting: high
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Not run

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

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

More matchups

Compare Grok 4.5 and GLM-5.2 with other leading models using the same data and benchmark logic.

View the complete LLM comparison