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Head-to-head comparison

GPT-5.5 vs. Grok 4.3

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

236

shared result series

27

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-5.5 and Grok 4.3
AttributeGPT-5.5Grok 4.3
ProviderOpenAIxAI
ReleasedApr 2026May 6, 2026
AvailabilityActiveActive
Model typeProprietaryProprietary
ParametersNot publishedNot published
ArchitectureNot publishedNot published
Context window1,050,000 tokens1,000,000 tokens
Knowledge cutoffDecember 1, 2025Not published
Technical sourcesModelModel
API pricing per 1M tokens
API input$5 ≤272K / $10 >272K$1.25 ≤200K / $2.5 >200K
API output$30 ≤272K / $45 >272K$2.5 ≤200K / $5 >200K
Cache read$0.5 ≤272K / $1 >272K$0.2 ≤200K / $0.4 >200K
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified07/30/2026Source08/11/2026Source
GPT-5.5Grok 4.3
API inputUSD per 1M tokens, base tier
GPT-5.5$5
Grok 4.3$1.25Lower price
API outputUSD per 1M tokens, base tier
GPT-5.5$30
Grok 4.3$2.5Lower price
Cache readUSD per 1M tokens, base tier
GPT-5.5$0.5
Grok 4.3$0.2Lower 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.

236 shared result series
GPT-5.5Grok 4.3
Arena Text, Style ControlOverall. Higher is better. No documented setup difference
GPT-5.51,476.591 arena pointsWinner
Grok 4.31,441.442 arena points
Code MigrationOverall. Higher is better. No documented setup difference
GPT-5.545.161 %Winner
Grok 4.36.795 %
CorpFin v2Overall. Higher is better. No documented setup difference
GPT-5.568.415 %
Grok 4.368.532 %Winner
CyberBenchOverall. Higher is better. No documented setup difference
GPT-5.580.508 %Winner
Grok 4.347.457 %
EMBOverall. Higher is better. No documented setup difference
GPT-5.564.543 %Winner
Grok 4.318.394 %
Finance Agent (v2)Overall. Higher is better. No documented setup difference
GPT-5.551.76 %Winner
Grok 4.337.728 %
GPQA DiamondOverall. Higher is better. No documented setup difference
GPT-5.593.182 %Winner
Grok 4.391.414 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
GPT-5.53.75 %Winner
Grok 4.30.417 %
Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference
GPT-5.540.385 %Winner
Grok 4.315.385 %
LegalBenchOverall. Higher is better. No documented setup difference
GPT-5.586.515 %Winner
Grok 4.384.458 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
GPT-5.585.296 %Winner
Grok 4.384.494 %
MedCodeOverall. Higher is better. No documented setup difference
GPT-5.549.1 %Winner
Grok 4.338.068 %
Benchmark scores for GPT-5.5 and Grok 4.3
Benchmark and taskGPT-5.5Grok 4.3ComparabilitySource
Arena Text, Style ControlOverall
1,476.591 arena pointsWinner
95% confidence interval: ±4.028The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,441.442 arena points
95% confidence interval: ±3.977The 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:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: Snapshot: gpt-5.5, Harness: Arena text, style control
Grok 4.3: Snapshot: grok-4.3, Harness: Arena text, style control
GPT-5.5: Style-controlled Arena rating from 56,647 anonymous pairwise votes.Grok 4.3: Style-controlled Arena rating from 56,645 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationOverall
45.161 %Winner
6.795 %
1accuracyHigher is betterCohort: vals-code-migration:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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
68.415 %
68.532 %Winner
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:overallNo documented setup differenceWinner: Grok 4.3GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-corp_fin_v2-2026-08-16-45bbf84f57abRetrieved 2026-08-16
CyberBenchOverall
80.508 %Winner
47.457 %
1accuracyHigher is betterCohort: vals-cyberbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-16-702acaee9aa9Retrieved 2026-08-16
EMBOverall
64.543 %Winner
18.394 %
1accuracyHigher is betterCohort: vals-emb:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-emb-2026-08-16-68d5d1d47a97Retrieved 2026-08-16
Finance Agent (v2)Overall
51.76 %Winner
37.728 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-fabv2-2026-08-16-8853da43085dRetrieved 2026-08-16
GPQA DiamondOverall
93.182 %Winner
91.414 %
1accuracyHigher is betterCohort: vals-gpqa:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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
3.75 %Winner
0.417 %
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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
40.385 %Winner
15.385 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-legal_research-2026-08-16-af296c00ecaaRetrieved 2026-08-16
LegalBenchOverall
86.515 %Winner
84.458 %
1accuracyHigher is betterCohort: vals-legal-bench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-legal_bench-2026-08-16-d5b3b1b2b5c8Retrieved 2026-08-16
LiveCodeBench v6Overall
85.296 %Winner
84.494 %
1accuracyHigher is betterCohort: vals-lcb:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-lcb-2026-08-16-17b9c147080dRetrieved 2026-08-16
MedCodeOverall
49.1 %Winner
38.068 %
1accuracyHigher is betterCohort: vals-medcode:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medcode-2026-08-16-524f7f474eacRetrieved 2026-08-16
MedScribeOverall
86.868 %Winner
74.399 %
1accuracyHigher is betterCohort: vals-medscribe:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medscribe-2026-08-16-c385354a7e62Retrieved 2026-08-16
MMLU-ProOverall
88.144 %Winner
85.838 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mmlu_pro-2026-08-16-e14d5bb3a34cRetrieved 2026-08-16
MMMU-ProOverall
88.266 %Winner
83.064 %
1accuracyHigher is betterCohort: vals-mmmu:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmmu-2026-08-16-37c9a8c7e21fRetrieved 2026-08-16
MortgageTaxOverall
68.76 %Winner
48.252 %
1accuracyHigher is betterCohort: vals-mortgage-tax:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mortgage_tax-2026-08-16-e78c985dbb1cRetrieved 2026-08-16
ProgramBenchOverall
0.5 %Winner
0 %
1accuracyHigher is betterCohort: vals-programbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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
60.893 %Winner
51.691 %
1.1accuracyHigher is betterCohort: vals-snap:1.1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-public-benefits-bench-2026-08-16-7ce68123c502Retrieved 2026-08-16
SAGEOverall
51.532 %Winner
19.736 %
1accuracyHigher is betterCohort: vals-sage:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-sage-2026-08-16-a416dd25affbRetrieved 2026-08-16
SkillsBenchOverall
62.209 %Winner
40.638 %
1accuracyHigher is betterCohort: vals-skillsbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: Harness: OpenHands
Grok 4.3: Harness: OpenHands
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-skillsbench-2026-08-16-4917a67268d2Retrieved 2026-08-16
SWE-bench VerifiedOverall
82.6 %Winner
71.4 %
1accuracyHigher is betterCohort: vals-swebench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-swebench-2026-08-16-c133071b8167Retrieved 2026-08-16
TaxEval v2Overall
74.98 %Winner
70.81 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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 2.0Overall
73.202 %Winner
43.446 %
2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-16-0d39f2e25723Retrieved 2026-08-16
Terminal-Bench 2.1Overall
76.404 %Winner
41.948 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: 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 IndexOverall
57.411 %Winner
24.294 %
2weighted index scoreHigher is betterCohort: vals-vals-index:2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-vals_index-2026-08-16-ab641d89d6edRetrieved 2026-08-16
Vals Multimodal IndexOverall
68.071 %Winner
43.293 %
1.2weighted index scoreHigher is betterCohort: vals-vals-multimodal-index:1.2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-11Import ID: vals-vals_multimodal_index-2026-08-16-9f3ebb221408Retrieved 2026-08-16
Vibe Code Bench v1.1Overall
69.847 %Winner
19.403 %
1.1accuracyHigher is betterCohort: vals-vibe-code-bench:1.1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: Harness: OpenHands
Grok 4.3: 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
1,481.794 arena pointsHigher measured value
95% confidence interval: ±4.053The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,441.442 arena points
95% confidence interval: ±3.977The 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-5.5: Snapshot: gpt-5.5-high, Reasoning: high, Harness: Arena text, style control
Grok 4.3: Snapshot: grok-4.3, Harness: Arena text, style control
GPT-5.5: Style-controlled Arena rating from 55,322 anonymous pairwise votes.Grok 4.3: Style-controlled Arena rating from 56,645 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCLI
36.882 %Higher measured value
9.06 %
1accuracyHigher is betterCohort: vals-code-migration:1:cliTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Exact Pages
65.618 %
66.783 %Higher measured value
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:exact_pagesTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
CyberBenchPatch
81.356 %Winner
64.407 %
1accuracyHigher is betterCohort: vals-cyberbench:1:patchNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-11-1f20498a3dc1Retrieved 2026-08-11
EMBComps
64.681 %Higher measured value
16.558 %
1accuracyHigher is betterCohort: vals-emb:1:compsTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)Adjustments
45.74 %Higher measured value
31.863 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:adjustmentsTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
GPQA DiamondFew-Shot CoT
93.434 %Higher measured value
92.929 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_few_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
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
82.246 %Higher measured value
61.594 %
1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__antitrust_competitionTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-hlab-2026-08-11-ea11b6e53414Retrieved 2026-08-11
Legal Research BenchAdministrative / Regulatory · All-pass
53.03 %Higher measured value
25.758 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:administrative_regulatoryTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchConclusion Tasks
89.644 %
89.912 %Higher measured value
1accuracyHigher is betterCohort: vals-legal-bench:1:conclusion_tasksTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
LiveCodeBench v6Easy
98.447 %No direct winner
98.447 %No direct winner
1accuracyHigher is betterCohort: vals-lcb:1:easyTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-lcb-2026-08-11-0342bcc364e4Retrieved 2026-08-11
MMLU-ProBiology
94.003 %Higher measured value
93.305 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:biologyTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
MortgageTaxNumerical Extraction
76.153 %Higher measured value
37.52 %
1accuracyHigher is betterCohort: vals-mortgage-tax:1:numerical_extractionTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95, Output limit: 256,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mortgage_tax-2026-08-11-5ea6eef3e482Retrieved 2026-08-11
ProgramBenchAlmost Resolved
9.5 %Higher measured value
0 %
1accuracyHigher is betterCohort: vals-programbench:1:almostTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SAGEAutomata
40.476 %Higher measured value
35.318 %
1accuracyHigher is betterCohort: vals-sage:1:automataTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Temperature: 1, Output limit: 30,000 tokens
Grok 4.3: Temperature: 1, Top P: 0.95, 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
49.875 %Higher measured value
19.305 %
1accuracyHigher is betterCohort: vals-skillsbench:1:no_skillsTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Harness: OpenHands, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Harness: OpenHands, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-07Import ID: vals-skillsbench-2026-08-11-351bec9d0e01Retrieved 2026-08-11
SWE-bench Verified<15 min fix
91.753 %Higher measured value
83.505 %
1accuracyHigher is betterCohort: vals-swebench:1:<15 min fixTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
TaxEval v2Correctness
65.495 %Higher measured value
60.589 %
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:correctnessTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-tax_eval_v2-2026-08-11-d05a40bf446fRetrieved 2026-08-11
Terminal-Bench 2.0Easy
85 %Higher measured value
66.667 %
2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:easyTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: high, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-11-d91717be20e6Retrieved 2026-08-11
Terminal-Bench 2.1EasyReasoning: high
83.333 %Higher measured value
75 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:easyTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: high, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexCorpFin v2
69.58 %
70.047 %Higher measured value
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:corp_fin_v2Test setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Vals Multimodal IndexCorpFin v2
69.58 %
70.047 %Higher measured value
1.2benchmark scoreHigher is betterCohort: vals-vals-multimodal-index:1.2:corp_fin_v2Test setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_multimodal_index-2026-08-11-fa704862df19Retrieved 2026-08-11
Arena Text, Style ControlBusiness, management and finance
1,486.534 arena pointsWinner
95% confidence interval: ±6.991The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,438.629 arena points
95% confidence interval: ±6.95The 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_operationsNo documented setup differenceWinner: GPT-5.5GPT-5.5: Snapshot: gpt-5.5, Harness: Arena text, style control
Grok 4.3: Snapshot: grok-4.3, Harness: Arena text, style control
GPT-5.5: Style-controlled Arena rating from 11,314 anonymous pairwise votes.Grok 4.3: Style-controlled Arena rating from 11,449 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCOBOL
70 %Higher measured value
0 %
1accuracyHigher is betterCohort: vals-code-migration:1:cobolTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-code-migration-2026-08-11-3a2d5ce718a3Retrieved 2026-08-11
CorpFin v2Max Fitting Context
70.047 %Higher measured value
68.765 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:max_fitting_contextTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-corp_fin_v2-2026-08-11-d9e58d191cd9Retrieved 2026-08-11
CyberBenchPoC
79.661 %Winner
30.508 %
1accuracyHigher is betterCohort: vals-cyberbench:1:pocNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed
Grok 4.3: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-03Import ID: vals-cyber-2026-08-11-1f20498a3dc1Retrieved 2026-08-11
EMBDataroom
81.227 %Higher measured value
29.176 %
1accuracyHigher is betterCohort: vals-emb:1:dataroomTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)All-Pass
39.562 %Higher measured value
26.373 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:all_passTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
GPQA DiamondZero-Shot CoT
92.929 %Higher measured value
89.899 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_zero_shot_cotTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
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-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
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
86.669 %Higher measured value
73.866 %
1weighted partial-credit scoreHigher is betterCohort: vals-legal-research:1:weighted_pass__administrative_regulatoryTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-legal_research-2026-08-11-326cf7aaca58Retrieved 2026-08-11
LegalBenchInterpretation Tasks
83.836 %Higher measured value
81.805 %
1accuracyHigher is betterCohort: vals-legal-bench:1:interpretation_tasksTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
LiveCodeBench v6Hard
69.714 %Higher measured value
66 %
1accuracyHigher is betterCohort: vals-lcb:1:hardTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-lcb-2026-08-11-0342bcc364e4Retrieved 2026-08-11
MMLU-ProBusiness
92.015 %
92.902 %Higher measured value
1accuracyHigher is betterCohort: vals-mmlu-pro:1:businessTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
MortgageTaxSemantic Extraction
61.367 %Higher measured value
58.983 %
1accuracyHigher is betterCohort: vals-mortgage-tax:1:semantic_extractionTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Temperature: 0.7, Top P: 0.95, Output limit: 256,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mortgage_tax-2026-08-11-5ea6eef3e482Retrieved 2026-08-11
ProgramBenchFully Resolved
0.5 %Higher measured value
0 %
1accuracyHigher is betterCohort: vals-programbench:1:strictTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Output limit: 128,000 tokens
Grok 4.3: Reasoning: high, Temperature: 0.7, Top P: 0.95
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-programbench-2026-08-11-b6f8959fbdfeRetrieved 2026-08-11
SAGECalculus
72.222 %Higher measured value
48.148 %
1accuracyHigher is betterCohort: vals-sage:1:calculusTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Temperature: 1
Grok 4.3: Temperature: 1, Top P: 0.95, Output limit: 30,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-sage-2026-08-11-f1f79f6d8af3Retrieved 2026-08-11

The table shows 64 diversified result series from 236 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.