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Head-to-head comparison

GPT-5.6 Sol vs. GPT-5.4

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

179

shared result series

22

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 Sol and GPT-5.4
AttributeGPT-5.6 SolGPT-5.4
ProviderOpenAIOpenAI
ReleasedJun 26, 2026Mar 2026
AvailabilityActiveActive
Model typeProprietaryProprietary
ParametersNot publishedNot published
ArchitectureNot publishedNot published
Context window1,050,000 tokens1,050,000 tokens
Knowledge cutoffFebruary 16, 2026August 31, 2025
Technical sourcesModel, Context, Knowledge cutoffModel
API pricing per 1M tokens
API input$5 ≤272K / $10 >272K$2.5 ≤272K / $5 >272K
API output$30 ≤272K / $45 >272K$15 ≤272K / $22.5 >272K
Cache read$0.5 ≤272K / $1 >272K$0.25 ≤272K / $0.5 >272K
Cache write (5 min.)$6.25 ≤272K / $12.5 >272KNot listed
Cache write (1 hr.)Not listedNot listed
Price verified08/11/2026Source07/30/2026Source
GPT-5.6 SolGPT-5.4
API inputUSD per 1M tokens, base tier
GPT-5.6 Sol$5
GPT-5.4$2.5Lower price
API outputUSD per 1M tokens, base tier
GPT-5.6 Sol$30
GPT-5.4$15Lower price
Cache readUSD per 1M tokens, base tier
GPT-5.6 Sol$0.5
GPT-5.4$0.25Lower price

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.

179 shared result series
GPT-5.6 SolGPT-5.4
Arena Text, Style ControlOverall. Higher is better. Test setup not documented as identical
GPT-5.6 Sol1,480.992 arena pointsHigher measured value
GPT-5.41,465.439 arena points
Code MigrationOverall. Higher is better. No documented setup difference
GPT-5.6 Sol52.916 %Winner
GPT-5.434.984 %
CorpFin v2Overall. Higher is better. No documented setup difference
GPT-5.6 Sol64.375 %
GPT-5.465.268 %Winner
CyberBenchOverall. Higher is better. No documented setup difference
GPT-5.6 Sol88.136 %Winner
GPT-5.472.881 %
GPQA DiamondOverall. Higher is better. No documented setup difference
GPT-5.6 Sol95.202 %Winner
GPT-5.491.666 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
GPT-5.6 Sol2.5 %Winner
GPT-5.40 %
IOIOverall. Higher is better. No documented setup difference
GPT-5.6 Sol86.667 %Winner
GPT-5.467.834 %
LegalBenchOverall. Higher is better. No documented setup difference
GPT-5.6 Sol86.965 %Winner
GPT-5.486.044 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
GPT-5.6 Sol82.604 %
GPT-5.484.141 %Winner
MedCodeOverall. Higher is better. No documented setup difference
GPT-5.6 Sol43.974 %Winner
GPT-5.441.292 %
MedScribeOverall. Higher is better. No documented setup difference
GPT-5.6 Sol85.233 %Winner
GPT-5.477.549 %
MMLU-ProOverall. Higher is better. No documented setup difference
GPT-5.6 Sol89.1 %Winner
GPT-5.487.482 %
Benchmark scores for GPT-5.6 Sol and GPT-5.4
Benchmark and taskGPT-5.6 SolGPT-5.4ComparabilitySource
Arena Text, Style ControlOverall
1,480.992 arena pointsHigher measured value
95% confidence interval: ±5.733The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,465.439 arena points
95% confidence interval: ±3.814The 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 Sol: Snapshot: gpt-5.6-sol-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GPT-5.4: Snapshot: gpt-5.4, Harness: Arena text, style control
GPT-5.6 Sol: Style-controlled Arena rating from 15,450 anonymous pairwise votes.GPT-5.4: Style-controlled Arena rating from 63,759 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationOverall
52.916 %Winner
34.984 %
1accuracyHigher is betterCohort: vals-code-migration:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-code-migration-2026-08-16-107652dc6bfcRetrieved 2026-08-16
CorpFin v2Overall
64.375 %
65.268 %Winner
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:overallNo documented setup differenceWinner: GPT-5.4GPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-corp_fin_v2-2026-08-16-45bbf84f57abRetrieved 2026-08-16
CyberBenchOverall
88.136 %Winner
72.881 %
1accuracyHigher is betterCohort: vals-cyberbench:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-16-702acaee9aa9Retrieved 2026-08-16
GPQA DiamondOverall
95.202 %Winner
91.666 %
1accuracyHigher is betterCohort: vals-gpqa:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
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
2.5 %Winner
0 %
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-hlab-2026-08-16-bae90566df2fRetrieved 2026-08-16
IOIOverall
86.667 %Winner
67.834 %
1accuracyHigher is betterCohort: vals-ioi:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-ioi-2026-08-16-d9164ef483aaRetrieved 2026-08-16
LegalBenchOverall
86.965 %Winner
86.044 %
1accuracyHigher is betterCohort: vals-legal-bench:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-legal_bench-2026-08-16-d5b3b1b2b5c8Retrieved 2026-08-16
LiveCodeBench v6Overall
82.604 %
84.141 %Winner
1accuracyHigher is betterCohort: vals-lcb:1:overallNo documented setup differenceWinner: GPT-5.4GPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-lcb-2026-08-16-17b9c147080dRetrieved 2026-08-16
MedCodeOverall
43.974 %Winner
41.292 %
1accuracyHigher is betterCohort: vals-medcode:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medcode-2026-08-16-524f7f474eacRetrieved 2026-08-16
MedScribeOverall
85.233 %Winner
77.549 %
1accuracyHigher is betterCohort: vals-medscribe:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medscribe-2026-08-16-c385354a7e62Retrieved 2026-08-16
MMLU-ProOverall
89.1 %Winner
87.482 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mmlu_pro-2026-08-16-e14d5bb3a34cRetrieved 2026-08-16
MMMU-ProOverall
88.844 %Winner
87.514 %
1accuracyHigher is betterCohort: vals-mmmu:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmmu-2026-08-16-37c9a8c7e21fRetrieved 2026-08-16
MortgageTaxOverall
67.289 %
68.323 %Winner
1accuracyHigher is betterCohort: vals-mortgage-tax:1:overallNo documented setup differenceWinner: GPT-5.4GPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mortgage_tax-2026-08-16-e78c985dbb1cRetrieved 2026-08-16
PRBench FinanceOverall
50.45% ± 0.33Higher measured value
95% confidence interval: ±0.33
45.63% ± 0.56
95% confidence interval: ±0.56
full finance setweighted rubric scoreHigher is betterCohort: scale-prbench-finance-fullTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Snapshot: gpt-5.6-sol-max, Reasoning: max, Attempts: pass@1
GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Attempts: pass@1
600 finance tasks with task-specific rubrics and o4-mini as judge.
Scale AIType: Official benchmark leaderboardImport ID: curated-scale-ai-2026-08-05-98d8a9d579fd / curated-scale-ai-2026-08-05-f6b08a569debRetrieved 2026-08-05
PRBench LegalOverall
50.5% ± 0.54Higher measured value
95% confidence interval: ±0.54
44.35% ± 0.28
95% confidence interval: ±0.28
full legal setweighted rubric scoreHigher is betterCohort: scale-prbench-legal-fullTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Snapshot: gpt-5.6-sol-max, Reasoning: max, Attempts: pass@1
GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Attempts: pass@1
500 legal tasks with task-specific rubrics and o4-mini as judge.
Scale AIType: Official benchmark leaderboardImport ID: curated-scale-ai-2026-08-05-5caceb6c14e0 / curated-scale-ai-2026-08-05-63e40da2f52bRetrieved 2026-08-05
ProgramBenchOverall
1.5 %Winner
0 %
1accuracyHigher is betterCohort: vals-programbench:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-programbench-2026-08-16-08d9727662ddRetrieved 2026-08-16
SAGEOverall
52.563 %Winner
43.312 %
1accuracyHigher is betterCohort: vals-sage:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-sage-2026-08-16-a416dd25affbRetrieved 2026-08-16
SkillsBenchOverall
54.1 %Winner
51.711 %
1accuracyHigher is betterCohort: vals-skillsbench:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: Harness: OpenHands
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Harness: OpenHands
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-skillsbench-2026-08-16-4917a67268d2Retrieved 2026-08-16
SWE-bench VerifiedOverall
96.2 %Winner
78.2 %
1accuracyHigher is betterCohort: vals-swebench:1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-swebench-2026-08-16-c133071b8167Retrieved 2026-08-16
TaxEval v2Overall
74.775 %Winner
73.958 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-tax_eval_v2-2026-08-16-5bbd495dac53Retrieved 2026-08-16
Vibe Code Bench v1.1Overall
80.495 %Winner
67.421 %
1.1accuracyHigher is betterCohort: vals-vibe-code-bench:1.1:overallNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: Harness: OpenHands
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Harness: OpenHands
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-vibe-code-2026-08-16-a73c9770bcc4Retrieved 2026-08-16
Arena Text, Style ControlOverall
1,480.992 arena pointsHigher measured value
95% confidence interval: ±5.733The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,476.571 arena points
95% confidence interval: ±3.887The 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 Sol: Snapshot: gpt-5.6-sol-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Harness: Arena text, style control
GPT-5.6 Sol: Style-controlled Arena rating from 15,450 anonymous pairwise votes.GPT-5.4: Style-controlled Arena rating from 60,819 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCLI
47.221 %Higher measured value
23.788 %
1accuracyHigher is betterCohort: vals-code-migration:1:cliTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Exact Pages
61.538 %
64.103 %Higher measured value
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:exact_pagesTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
CyberBenchPatch
83.051 %Winner
81.356 %
1accuracyHigher is betterCohort: vals-cyberbench:1:patchNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-11-1f20498a3dc1Retrieved 2026-08-11
GPQA DiamondFew-Shot CoT
94.949 %Higher measured value
91.414 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_few_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
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
78.623 %Higher measured value
76.449 %
1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__antitrust_competitionTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
IOIIOI 2024
85 %Higher measured value
67.167 %
1accuracyHigher is betterCohort: vals-ioi:1:ioi2024Test setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-ioi-2026-08-11-2dfe8b4b8b7bRetrieved 2026-08-11
LegalBenchConclusion Tasks
90.492 %Higher measured value
88.939 %
1accuracyHigher is betterCohort: vals-legal-bench:1:conclusion_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
LiveCodeBench v6Easy
98.137 %
99.068 %Higher measured value
1accuracyHigher is betterCohort: vals-lcb:1:easyTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-lcb-2026-08-11-0342bcc364e4Retrieved 2026-08-11
MMLU-ProBiology
94.561 %Higher measured value
92.887 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:biologyTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
MortgageTaxNumerical Extraction
75.119 %
75.994 %Higher measured value
1accuracyHigher is betterCohort: vals-mortgage-tax:1:numerical_extractionTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mortgage_tax-2026-08-11-5ea6eef3e482Retrieved 2026-08-11
ProgramBenchAlmost Resolved
23 %Higher measured value
7 %
1accuracyHigher is betterCohort: vals-programbench:1:almostTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SAGEAutomata
39.682 %Higher measured value
21.428 %
1accuracyHigher is betterCohort: vals-sage:1:automataTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 30,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 30,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-sage-2026-08-11-f1f79f6d8af3Retrieved 2026-08-11
SkillsBenchNo Skills
43.312 %
48.905 %Higher measured value
1accuracyHigher is betterCohort: vals-skillsbench:1:no_skillsTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Harness: OpenHands, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Harness: OpenHands, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-skillsbench-2026-08-11-351bec9d0e01Retrieved 2026-08-11
SWE-bench Verified<15 min fix
97.423 %Higher measured value
88.144 %
1accuracyHigher is betterCohort: vals-swebench:1:<15 min fixTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
TaxEval v2Correctness
65.004 %Higher measured value
64.922 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:correctnessTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-tax_eval_v2-2026-08-11-d05a40bf446fRetrieved 2026-08-11
Arena Text, Style ControlBusiness, management and finance
1,482.723 arena pointsHigher measured value
95% confidence interval: ±11.356The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,474.218 arena points
95% confidence interval: ±6.56The 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 Sol: Snapshot: gpt-5.6-sol-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GPT-5.4: Snapshot: gpt-5.4, Harness: Arena text, style control
GPT-5.6 Sol: Style-controlled Arena rating from 3,027 anonymous pairwise votes.GPT-5.4: Style-controlled Arena rating from 13,072 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCOBOL
70 %Higher measured value
68.571 %
1accuracyHigher is betterCohort: vals-code-migration:1:cobolTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Max Fitting Context
65.152 %Higher measured value
64.918 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:max_fitting_contextTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
CyberBenchPoC
93.22 %Winner
64.407 %
1accuracyHigher is betterCohort: vals-cyberbench:1:pocNo documented setup differenceWinner: GPT-5.6 SolGPT-5.6 Sol: No further settings disclosed
GPT-5.4: Snapshot: gpt-5.4-2026-03-05
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-11-1f20498a3dc1Retrieved 2026-08-11
GPQA DiamondZero-Shot CoT
95.455 %Higher measured value
91.919 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_zero_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
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 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
IOIIOI 2025
88.333 %Higher measured value
68.5 %
1accuracyHigher is betterCohort: vals-ioi:1:ioi2025Test setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-ioi-2026-08-11-2dfe8b4b8b7bRetrieved 2026-08-11
LegalBenchInterpretation Tasks
84.398 %Higher measured value
83.921 %
1accuracyHigher is betterCohort: vals-legal-bench:1:interpretation_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
LiveCodeBench v6Hard
67.429 %
67.714 %Higher measured value
1accuracyHigher is betterCohort: vals-lcb:1:hardTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-lcb-2026-08-11-0342bcc364e4Retrieved 2026-08-11
MMLU-ProBusiness
93.283 %Higher measured value
91.762 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:businessTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
MortgageTaxSemantic Extraction
59.459 %
60.652 %Higher measured value
1accuracyHigher is betterCohort: vals-mortgage-tax:1:semantic_extractionTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mortgage_tax-2026-08-11-5ea6eef3e482Retrieved 2026-08-11
ProgramBenchFully Resolved
1.5 %Higher measured value
0 %
1accuracyHigher is betterCohort: vals-programbench:1:strictTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SAGECalculus
67.284 %
70.988 %Higher measured value
1accuracyHigher is betterCohort: vals-sage:1:calculusTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 30,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 30,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-sage-2026-08-11-f1f79f6d8af3Retrieved 2026-08-11
SkillsBenchWith Skills
54.1 %Higher measured value
51.711 %
1accuracyHigher is betterCohort: vals-skillsbench:1:with_skillsTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Harness: OpenHands, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Harness: OpenHands, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-skillsbench-2026-08-11-351bec9d0e01Retrieved 2026-08-11
SWE-bench Verified>4 hours
100 %Higher measured value
0 %
1accuracyHigher is betterCohort: vals-swebench:1:>4 hoursTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
TaxEval v2Stepwise Reasoning
84.546 %Higher measured value
82.993 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:stepwise_reasoningTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-tax_eval_v2-2026-08-11-d05a40bf446fRetrieved 2026-08-11
Arena Text, Style ControlBusiness, management and finance
1,482.723 arena points
95% confidence interval: ±11.356The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,483.617 arena pointsHigher measured value
95% confidence interval: ±6.683The 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 Sol: Snapshot: gpt-5.6-sol-xhigh, Reasoning: xhigh, Harness: Arena text, style control
GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Harness: Arena text, style control
GPT-5.6 Sol: Style-controlled Arena rating from 3,027 anonymous pairwise votes.GPT-5.4: Style-controlled Arena rating from 12,373 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCode Quality
3.847 / 5Higher measured value
3.632 / 5
1mean reviewer code-quality ratingHigher is betterCohort: vals-code-migration:1:code_qualityTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Shared Max Context
66.434 %
66.783 %Higher measured value
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:shared_max_contextTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Criteria passed
82.079 %Higher measured value
66.667 %
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 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
LegalBenchIssue Tasks
91.438 %Higher measured value
90.526 %
1accuracyHigher is betterCohort: vals-legal-bench:1:issue_tasksTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
LiveCodeBench v6Medium
82.245 %
85.64 %Higher measured value
1accuracyHigher is betterCohort: vals-lcb:1:mediumTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-lcb-2026-08-11-0342bcc364e4Retrieved 2026-08-11
MMLU-ProChemistry
91.961 %Higher measured value
91.078 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:chemistryTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
ProgramBenchRaw Pass Rate
77.644 %Higher measured value
68.596 %
1accuracyHigher is betterCohort: vals-programbench:1:partialTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SAGELinear Algebra
70.388 %Higher measured value
68.826 %
1accuracyHigher is betterCohort: vals-sage:1:linear_algebraTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 30,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 30,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-sage-2026-08-11-f1f79f6d8af3Retrieved 2026-08-11
SWE-bench Verified1-4 hours
97.619 %Higher measured value
50 %
1accuracyHigher is betterCohort: vals-swebench:1:1-4 hoursTest setup not documented as identicalNo direct winnerGPT-5.6 Sol: Reasoning: max, Output limit: 128,000 tokens
GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: xhigh, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11

The table shows 64 diversified result series from 179 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.