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Head-to-head comparison

GPT-5.6 Luna vs. GLM-5.1

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

165

shared result series

18

distinct benchmarks

2026-08-16

latest retrieval

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Specifications and cost

General specifications and standard API pricing

Undisclosed parameter counts and knowledge cutoffs stay marked as unavailable. The table shows direct standard token pricing, including documented context tiers. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

Specifications and API pricing for GPT-5.6 Luna and GLM-5.1
AttributeGPT-5.6 LunaGLM-5.1
ProviderOpenAIZ.ai
ReleasedJun 26, 2026Apr 7, 2026
AvailabilityActiveOpen Source
Model typeProprietaryOpen Weights
ParametersNot published744B, 40B active
ArchitectureNot publishedMixture of Experts
Context window1,050,000 tokens200,000 tokens
Knowledge cutoffFebruary 16, 2026Not published
Technical sourcesModel, Context, Knowledge cutoffModel, Context
API pricing per 1M tokens
API input$0.2 ≤272K / $0.4 >272K$1.4
API output$1.2 ≤272K / $1.8 >272K$4.4
Cache read$0.02 ≤272K / $0.04 >272K$0.26
Cache write (5 min.)$0.25 ≤272K / $0.5 >272KNot listed
Cache write (1 hr.)Not listedNot listed
Price verified08/11/2026Source07/30/2026Source
GPT-5.6 LunaGLM-5.1
API inputUSD per 1M tokens, base tier
GPT-5.6 Luna$0.2Lower price
GLM-5.1$1.4
API outputUSD per 1M tokens, base tier
GPT-5.6 Luna$1.2Lower price
GLM-5.1$4.4
Cache readUSD per 1M tokens, base tier
GPT-5.6 Luna$0.02Lower price
GLM-5.1$0.26

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.

165 shared result series
GPT-5.6 LunaGLM-5.1
Arena Text, Style ControlOverall. Higher is better. Test setup not documented as identical
GPT-5.6 Luna1,450.561 arena points
GLM-5.11,466.935 arena pointsHigher measured value
Code MigrationOverall. Higher is better. No documented setup difference
GPT-5.6 Luna44.55 %Winner
GLM-5.125.768 %
CorpFin v2Overall. Higher is better. No documented setup difference
GPT-5.6 Luna64.219 %
GLM-5.164.452 %Winner
Finance Agent (v2)Overall. Higher is better. No documented setup difference
GPT-5.6 Luna55.044 %Winner
GLM-5.144.792 %
GPQA DiamondOverall. Higher is better. No documented setup difference
GPT-5.6 Luna91.666 %Winner
GLM-5.184.518 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
GPT-5.6 Luna1.25 %Winner
GLM-5.10 %
Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference
GPT-5.6 Luna36.538 %Winner
GLM-5.127.885 %
LegalBenchOverall. Higher is better. No documented setup difference
GPT-5.6 Luna84.034 %
GLM-5.184.394 %Winner
MedCodeOverall. Higher is better. No documented setup difference
GPT-5.6 Luna42.391 %Winner
GLM-5.141.604 %
MedScribeOverall. Higher is better. No documented setup difference
GPT-5.6 Luna84.391 %Winner
GLM-5.172.27 %
MMLU-ProOverall. Higher is better. No documented setup difference
GPT-5.6 Luna86.036 %
GLM-5.186.9 %Winner
ProgramBenchOverall. Higher is better. No documented setup difference
GPT-5.6 Luna0 %Tie
GLM-5.10 %Tie
Benchmark scores for GPT-5.6 Luna and GLM-5.1
Benchmark and taskGPT-5.6 LunaGLM-5.1ComparabilitySource
Arena Text, Style ControlOverall
1,450.561 arena points
95% confidence interval: ±5.636The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,466.935 arena pointsHigher measured value
95% confidence interval: ±4.197The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:overallTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Snapshot: gpt-5.6-luna-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GLM-5.1: Snapshot: glm-5.1, Harness: Arena text, style control
GPT-5.6 Luna: Style-controlled Arena rating from 16,419 anonymous pairwise votes.GLM-5.1: Style-controlled Arena rating from 39,063 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationOverall
44.55 %Winner
25.768 %
1accuracyHigher is betterCohort: vals-code-migration:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-code-migration-2026-08-16-107652dc6bfcRetrieved 2026-08-16
CorpFin v2Overall
64.219 %
64.452 %Winner
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:overallNo documented setup differenceWinner: GLM-5.1GPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-corp_fin_v2-2026-08-16-45bbf84f57abRetrieved 2026-08-16
Finance Agent (v2)Overall
55.044 %Winner
44.792 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-fabv2-2026-08-16-8853da43085dRetrieved 2026-08-16
GPQA DiamondOverall
91.666 %Winner
84.518 %
1accuracyHigher is betterCohort: vals-gpqa:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-gpqa-2026-08-16-7f8363eaa2dbRetrieved 2026-08-16
Harvey's Legal Agent BenchmarkOverall · Task fully resolved
1.25 %Winner
0 %
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-hlab-2026-08-16-bae90566df2fRetrieved 2026-08-16
Legal Research BenchOverall · All-pass
36.538 %Winner
27.885 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-legal_research-2026-08-16-af296c00ecaaRetrieved 2026-08-16
LegalBenchOverall
84.034 %
84.394 %Winner
1accuracyHigher is betterCohort: vals-legal-bench:1:overallNo documented setup differenceWinner: GLM-5.1GPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-legal_bench-2026-08-16-d5b3b1b2b5c8Retrieved 2026-08-16
MedCodeOverall
42.391 %Winner
41.604 %
1accuracyHigher is betterCohort: vals-medcode:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medcode-2026-08-16-524f7f474eacRetrieved 2026-08-16
MedScribeOverall
84.391 %Winner
72.27 %
1accuracyHigher is betterCohort: vals-medscribe:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medscribe-2026-08-16-c385354a7e62Retrieved 2026-08-16
MMLU-ProOverall
86.036 %
86.9 %Winner
1accuracyHigher is betterCohort: vals-mmlu-pro:1:overallNo documented setup differenceWinner: GLM-5.1GPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mmlu_pro-2026-08-16-e14d5bb3a34cRetrieved 2026-08-16
ProgramBenchOverall
0 %Tie
0 %Tie
1accuracyHigher is betterCohort: vals-programbench:1:overallNo documented setup differenceTieGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-programbench-2026-08-16-08d9727662ddRetrieved 2026-08-16
Public Benefits Bench v1.1Overall
61.164 %
61.84 %Winner
1.1accuracyHigher is betterCohort: vals-snap:1.1:overallNo documented setup differenceWinner: GLM-5.1GPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-public-benefits-bench-2026-08-16-7ce68123c502Retrieved 2026-08-16
SWE-bench VerifiedOverall
93 %Winner
76.4 %
1accuracyHigher is betterCohort: vals-swebench:1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-swebench-2026-08-16-c133071b8167Retrieved 2026-08-16
TaxEval v2Overall
76.166 %Winner
71.194 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-tax_eval_v2-2026-08-16-5bbd495dac53Retrieved 2026-08-16
Terminal-Bench 2.1Overall
79.026 %Winner
56.929 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-terminal-bench-2-1-2026-08-16-b3f38c18bea4Retrieved 2026-08-16
Vals IndexCorpFin v2
65.035 %
65.268 %Higher measured value
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:corp_fin_v2Test setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Vibe Code Bench v1.1Overall
77.055 %Winner
31.456 %
1.1accuracyHigher is betterCohort: vals-vibe-code-bench:1.1:overallNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: Harness: OpenHands
GLM-5.1: Harness: OpenHands
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-vibe-code-2026-08-16-a73c9770bcc4Retrieved 2026-08-16
Arena Text, Style ControlBusiness, management and finance
1,465.32 arena pointsHigher measured value
95% confidence interval: ±11.098The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,464.98 arena points
95% confidence interval: ±7.499The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:industry_business_and_management_and_financial_operationsTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Snapshot: gpt-5.6-luna-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GLM-5.1: Snapshot: glm-5.1, Harness: Arena text, style control
GPT-5.6 Luna: Style-controlled Arena rating from 3,171 anonymous pairwise votes.GLM-5.1: Style-controlled Arena rating from 7,906 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCLI
36.067 %Higher measured value
18.833 %
1accuracyHigher is betterCohort: vals-code-migration:1:cliTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Exact Pages
63.52 %Higher measured value
61.772 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:exact_pagesTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
Finance Agent (v2)Adjustments
52.027 %Higher measured value
43.276 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:adjustmentsTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
GPQA DiamondFew-Shot CoT
92.424 %Higher measured value
85.787 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_few_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-gpqa-2026-08-11-d3325290a404Retrieved 2026-08-11
Harvey's Legal Agent BenchmarkAntitrust Competition · Criteria passed
85.145 %Higher measured value
71.377 %
1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__antitrust_competitionTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
Legal Research BenchAdministrative / Regulatory · All-pass
48.485 %Higher measured value
31.818 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:administrative_regulatoryTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchConclusion Tasks
88.864 %
89.575 %Higher measured value
1accuracyHigher is betterCohort: vals-legal-bench:1:conclusion_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
MMLU-ProBiology
93.305 %
93.724 %Higher measured value
1accuracyHigher is betterCohort: vals-mmlu-pro:1:biologyTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
ProgramBenchAlmost Resolved
9 %Higher measured value
1 %
1accuracyHigher is betterCohort: vals-programbench:1:almostTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SWE-bench Verified<15 min fix
96.392 %Higher measured value
88.66 %
1accuracyHigher is betterCohort: vals-swebench:1:<15 min fixTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
TaxEval v2Correctness
66.558 %Higher measured value
61.538 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:correctnessTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-tax_eval_v2-2026-08-11-d05a40bf446fRetrieved 2026-08-11
Terminal-Bench 2.1Easy
83.333 %No direct winner
83.333 %No direct winner
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:easyTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexFinance Agent v2
55.555 %Higher measured value
44.79 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:finance_agentTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlChinese
1,485.14 arena points
95% confidence interval: ±18.537The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,519.866 arena pointsHigher measured value
95% confidence interval: ±13.198The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:chineseTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Snapshot: gpt-5.6-luna-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GLM-5.1: Snapshot: glm-5.1, Harness: Arena text, style control
GPT-5.6 Luna: Style-controlled Arena rating from 1,179 anonymous pairwise votes.GLM-5.1: Style-controlled Arena rating from 2,373 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCOBOL
70 %Higher measured value
46.571 %
1accuracyHigher is betterCohort: vals-code-migration:1:cobolTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Max Fitting Context
64.103 %
66.317 %Higher measured value
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:max_fitting_contextTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
Finance Agent (v2)All-Pass
43.285 %Higher measured value
32.68 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:all_passTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
GPQA DiamondZero-Shot CoT
90.909 %Higher measured value
83.249 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_zero_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-gpqa-2026-08-11-d3325290a404Retrieved 2026-08-11
Harvey's Legal Agent BenchmarkAntitrust Competition · Task fully resolved
0 %No direct winner
0 %No direct winner
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:antitrust_competitionTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
Legal Research BenchAdministrative / Regulatory · Weighted partial credit
87.513 %Higher measured value
80.005 %
1weighted partial-credit scoreHigher is betterCohort: vals-legal-research:1:weighted_pass__administrative_regulatoryTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchInterpretation Tasks
82.142 %Higher measured value
81.709 %
1accuracyHigher is betterCohort: vals-legal-bench:1:interpretation_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
MMLU-ProBusiness
91.001 %
91.128 %Higher measured value
1accuracyHigher is betterCohort: vals-mmlu-pro:1:businessTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
ProgramBenchFully Resolved
0 %No direct winner
0 %No direct winner
1accuracyHigher is betterCohort: vals-programbench:1:strictTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SWE-bench Verified>4 hours
66.667 %Higher measured value
33.333 %
1accuracyHigher is betterCohort: vals-swebench:1:>4 hoursTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
TaxEval v2Stepwise Reasoning
85.773 %Higher measured value
80.851 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:stepwise_reasoningTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-tax_eval_v2-2026-08-11-d05a40bf446fRetrieved 2026-08-11
Terminal-Bench 2.1Hard
70 %Higher measured value
37.778 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:hardTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexSWE-bench
93.137 %Winner
72.549 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:swebenchNo documented setup differenceWinner: GPT-5.6 LunaGPT-5.6 Luna: No further settings disclosed
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlCoding
1,498.496 arena points
95% confidence interval: ±9.171The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,515.299 arena pointsHigher measured value
95% confidence interval: ±6.649The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:codingTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Snapshot: gpt-5.6-luna-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GLM-5.1: Snapshot: glm-5.1, Harness: Arena text, style control
GPT-5.6 Luna: Style-controlled Arena rating from 4,743 anonymous pairwise votes.GLM-5.1: Style-controlled Arena rating from 11,013 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCode Quality
3.195 / 5
3.544 / 5Higher measured value
1mean reviewer code-quality ratingHigher is betterCohort: vals-code-migration:1:code_qualityTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Shared Max Context
65.035 %
65.268 %Higher measured value
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:shared_max_contextTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
Finance Agent (v2)Comparables
48.285 %Higher measured value
41.557 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:comparablesTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Criteria passed
81.72 %Higher measured value
53.405 %
1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__arbitration_international_dispute_resolutionTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
Legal Research BenchBusiness & Commercial · All-pass
32.558 %Higher measured value
23.256 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:business_commercialTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchIssue Tasks
88.68 %
89.02 %Higher measured value
1accuracyHigher is betterCohort: vals-legal-bench:1:issue_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
MMLU-ProChemistry
90.989 %
91.844 %Higher measured value
1accuracyHigher is betterCohort: vals-mmlu-pro:1:chemistryTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
ProgramBenchRaw Pass Rate
68.291 %Higher measured value
50.879 %
1accuracyHigher is betterCohort: vals-programbench:1:partialTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SWE-bench Verified1-4 hours
85.714 %Higher measured value
45.238 %
1accuracyHigher is betterCohort: vals-swebench:1:1-4 hoursTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
Terminal-Bench 2.1Medium
83.636 %Higher measured value
65.455 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:mediumTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexTerminal-Bench 2.1
79.026 %Higher measured value
56.929 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:terminal_bench_2_1Test setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlCreative writing
1,413.67 arena points
95% confidence interval: ±11.521The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,448.824 arena pointsHigher measured value
95% confidence interval: ±8.067The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:creative_writingTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Snapshot: gpt-5.6-luna-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GLM-5.1: Snapshot: glm-5.1, Harness: Arena text, style control
GPT-5.6 Luna: Style-controlled Arena rating from 3,074 anonymous pairwise votes.GLM-5.1: Style-controlled Arena rating from 6,969 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Finance Agent (v2)Disclosure Analysis
62.836 %Higher measured value
52.713 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:disclosure_analysisTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Task fully resolved
0 %No direct winner
0 %No direct winner
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:arbitration_international_dispute_resolutionTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
Legal Research BenchBusiness & Commercial · Weighted partial credit
87.309 %Higher measured value
81.655 %
1weighted partial-credit scoreHigher is betterCohort: vals-legal-research:1:weighted_pass__business_commercialTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: Temperature: 1, Top P: 0.95, Output limit: 131,072 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchRhetoric Tasks
82.747 %Higher measured value
81.108 %
1accuracyHigher is betterCohort: vals-legal-bench:1:rhetoric_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
MMLU-ProComputer Science
89.756 %Higher measured value
89.487 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:computer_scienceTest setup not documented as identicalNo direct winnerGPT-5.6 Luna: Reasoning: max, Output limit: 128,000 tokens
GLM-5.1: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11

The table shows 64 diversified result series from 165 shared results. This prevents one benchmark with many subtasks from crowding out every other test.

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.

Prices use official API rates per 1M tokens. Web subscriptions and cloud platform surcharges can differ.

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.