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Head-to-head comparison

Grok 4.6 vs. GLM-5.3-Flash

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

shared result series
17
distinct benchmarks
17
latest retrieval
2026-09-04

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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 4.6 and GLM-5.3-Flash
AttributeGrok 4.6GLM-5.3-Flash
ProviderxAIZ.ai
ReleasedAug 12, 2026Aug 26, 2026
AvailabilityActiveOpen Source
Model typeProprietaryOpen Weights
ParametersNot published320B, 18B active
ArchitectureNot publishedMixture of Experts
Context window500,000 tokens1,000,000 tokens
Knowledge cutoffFebruary 1, 2026Not published
Technical sourcesModelModel, 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 4.6 and GLM-5.3-Flash
Price typeGrok 4.6GLM-5.3-Flash
API input$2 ≤200K / $4 >200K$0.07
API output$6 ≤200K / $12 >200K$0.25
Cache read$0.5 ≤200K / $1 >200K$0.01
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified08/16/2026 Source08/29/2026 Source
Grok 4.6GLM-5.3-Flash
API inputUSD per 1M tokens, base tier
Grok 4.6$2
GLM-5.3-FlashLower price$0.075
API outputUSD per 1M tokens, base tier
Grok 4.6$6
GLM-5.3-FlashLower price$0.25
Cache readUSD per 1M tokens, base tier
Grok 4.6$0.5
GLM-5.3-FlashLower price$0.015

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 4.6 and GLM-5.3-Flash
ModelProviderPurchase route and tariffInput per 1M tokensOutput per 1M tokensSource
Grok 4.6xAIDirect from developerUp to 200,000 context tokensLowest listed price: $2Lowest listed price: $6Source08/16/2026
xAIDirect from developerAbove 200,000 context tokens$4$12Source08/16/2026
Amazon BedrockVia OpenRouteramazon-bedrock/us-west-2$2.2$6.6Source09/06/2026
xAIVia OpenRouterxaiLowest listed price: $2Lowest listed price: $6Source09/06/2026
xAIVia OpenRouterxai/priority$4$12Source09/06/2026
xAIVia OpenRouterxai/zdrLowest listed price: $2Lowest listed price: $6Source09/06/2026
xAIVia OpenRouterxai/zdr/priority$4$12Source09/06/2026
GLM-5.3-FlashZ.aiDirect from developerStandard APILowest listed price: $0.075Lowest listed price: $0.25Source08/29/2026
BaseTenVia OpenRouterbaseten/fp8$0.15$0.5Source09/06/2026
CloudflareVia OpenRoutercloudflare$0.15$0.5Source09/06/2026
CoreWeaveVia OpenRoutercoreweave/fp8$0.15$0.5Source09/06/2026
DeepInfraVia OpenRouterdeepinfra/fp4Lowest listed price: $0.075Lowest listed price: $0.25Source09/06/2026
DigitalOceanVia OpenRouterdigitalocean$0.15$0.5Source09/06/2026
FireworksVia OpenRouterfireworks$0.15$0.5Source09/06/2026
FriendliVia OpenRouterfriendli$0.15$0.5Source09/06/2026
GMICloudVia OpenRoutergmicloud/fp8Lowest listed price: $0.075Lowest listed price: $0.25Source09/06/2026
Io NetVia OpenRouterio-net/fp8$0.15$0.5Source09/06/2026
MakoraVia OpenRoutermakora$0.14$0.47Source09/06/2026
ModalVia OpenRoutermodal/fp8$0.15$0.4999Source09/06/2026
MorphVia OpenRoutermorph/fp8$0.388$1.358Source09/06/2026
NextBitVia OpenRouternextbit/fp8$0.15$0.5Source09/06/2026
NovitaVia OpenRouternovita/fp8Lowest listed price: $0.075Lowest listed price: $0.25Source09/06/2026
ParasailVia OpenRouterparasail/fp8$0.15$0.5Source09/06/2026
RekaVia OpenRouterreka/fp8$0.15$0.5Source09/06/2026
Sail ResearchVia OpenRoutersail-research/fp8$0.15$0.5Source09/06/2026
SiliconFlowVia OpenRoutersiliconflow/fp8$0.15$0.5Source09/06/2026
StreamLakeVia OpenRouterstreamlake$0.15$0.5Source09/06/2026
TogetherVia OpenRoutertogether$0.15$0.5Source09/06/2026
VeniceVia OpenRoutervenice$0.15$0.5Source09/06/2026
WaferVia OpenRouterwafer$0.1$0.35Source09/06/2026
Z.AIVia OpenRouterz-ai/fp8Lowest listed price: $0.075Lowest listed price: $0.25Source09/06/2026

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.

255075100CodingReasoningMathematicsKnowledgeFinanceLegalAgentic tasksHealth
Grok 4.6
GLM-5.3-Flash
Coding: 100 / 68.5 (4 benchmark families)
Reasoning: 100 / 91.2 (1 benchmark family)
Mathematics: 100 / 41.2 (1 benchmark family)
Knowledge: 100 / 96.3 (1 benchmark family)
Finance: 95.6 / 96.4 (3 benchmark families)
Legal: 100 / 77.8 (3 benchmark families)
Agentic tasks: 100 / 76.2 (2 benchmark families)
Health: 97.3 / 100 (1 benchmark family)

17 matched rows from 17 benchmark families were considered. The radar shows 8 of 9 comparable categories.

Grok 4.6GLM-5.3-Flash
Code MigrationOverall. Higher is better. No documented setup difference
Grok 4.6Winner44.572 %
GLM-5.3-Flash20.515 %
EMBOverall. Higher is better. No documented setup difference
Grok 4.6Winner62.727 %
GLM-5.3-Flash55.932 %
Finance Agent (v2)Overall. Higher is better. No documented setup difference
Grok 4.653.682 %
GLM-5.3-FlashWinner57.85 %
GPQA DiamondOverall. Higher is better. No documented setup difference
Grok 4.6Winner94.697 %
GLM-5.3-Flash86.364 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
Grok 4.6Winner15.833 %
GLM-5.3-Flash6.667 %
Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference
Grok 4.6Winner48.077 %
GLM-5.3-Flash45.192 %
LegalBenchOverall. Higher is better. No documented setup difference
Grok 4.6Winner86.307 %
GLM-5.3-Flash83.928 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
Grok 4.6Winner88.224 %
GLM-5.3-Flash80.51 %
MedScribeOverall. Higher is better. No documented setup difference
Grok 4.686.534 %
GLM-5.3-FlashWinner88.936 %
MMLU-ProOverall. Higher is better. No documented setup difference
Grok 4.6Winner89.4 %
GLM-5.3-Flash86.059 %
ProofBenchOverall. Higher is better. No documented setup difference
Grok 4.6Winner51 %
GLM-5.3-Flash21 %
SkillsBenchOverall. Higher is better. No documented setup difference
Grok 4.6Winner55.766 %
GLM-5.3-Flash40.159 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Grok 4.6 and GLM-5.3-Flash
Benchmark and taskGrok 4.6GLM-5.3-FlashSource
Code MigrationOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner44.572 %
20.515 %
Vals AI
Source details
Data as of: 09/03/2026
EMBOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner62.727 %
55.932 %
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
53.682 %
Winner57.85 %
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
Winner94.697 %
86.364 %
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
Winner15.833 %
6.667 %
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
Winner48.077 %
45.192 %
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
Winner86.307 %
83.928 %
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
Winner88.224 %
80.51 %
Vals AI
Source details
Data as of: 09/01/2026
MedScribeOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
86.534 %
Winner88.936 %
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
Winner89.4 %
86.059 %
Vals AI
Source details
Data as of: 09/01/2026
ProofBenchOverall
Test details
No documented difference in the test setupVersion: 1.1Metric: accuracyScoring: Higher is better
Winner51 %
21 %
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
Winner55.766 %
40.159 %
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
Winner95.6 %
92 %
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
71.096 %
Winner75.593 %
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
Winner78.277 %
62.921 %
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
Winner59.167 %
47.216 %
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
Winner76.239 %
30.759 %
Vals AI
Source details
Data as of: 09/03/2026

Key to the marks:better valuebetter, but not conclusivetie

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

Related LLM comparisons

Compare Grok 4.6 and GLM-5.3-Flash with other leading models using the same data and benchmark logic.

View the complete LLM comparison