Head-to-head comparison
GPT-5.5 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.
178
shared result series
20
distinct benchmarks
2026-08-16
latest retrieval
Change model selection
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.
| Attribute | GPT-5.5 | GPT-5.4 |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Released | Apr 2026 | Mar 2026 |
| Availability | Active | Active |
| Model type | Proprietary | Proprietary |
| Parameters | Not published | Not published |
| Architecture | Not published | Not published |
| Context window | 1,050,000 tokens | 1,050,000 tokens |
| Knowledge cutoff | December 1, 2025 | August 31, 2025 |
| Technical sources | Model | Model |
| 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.) | Not listed | Not listed |
| Cache write (1 hr.) | Not listed | Not listed |
| Price verified | 07/30/2026Source | 07/30/2026Source |
GPT-5.5GPT-5.4
API inputUSD per 1M tokens, base tier
GPT-5.5$5
GPT-5.4$2.5Lower price
API outputUSD per 1M tokens, base tier
GPT-5.5$30
GPT-5.4$15Lower price
Cache readUSD per 1M tokens, base tier
GPT-5.5$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.
178 shared result series
GPT-5.5GPT-5.4
Arena Text, Style ControlOverall. Higher is better. No documented setup difference
GPT-5.51,476.591 arena pointsWinner
GPT-5.41,465.439 arena points
Code MigrationOverall. Higher is better. No documented setup difference
GPT-5.545.161 %Winner
GPT-5.434.984 %
CorpFin v2Overall. Higher is better. No documented setup difference
GPT-5.568.415 %Winner
GPT-5.465.268 %
CyberBenchOverall. Higher is better. No documented setup difference
GPT-5.580.508 %Winner
GPT-5.472.881 %
GPQA DiamondOverall. Higher is better. No documented setup difference
GPT-5.593.182 %Winner
GPT-5.491.666 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
GPT-5.53.75 %Winner
GPT-5.40 %
LegalBenchOverall. Higher is better. No documented setup difference
GPT-5.586.515 %Winner
GPT-5.486.044 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
GPT-5.585.296 %Winner
GPT-5.484.141 %
MedCodeOverall. Higher is better. No documented setup difference
GPT-5.549.1 %Winner
GPT-5.441.292 %
MedScribeOverall. Higher is better. No documented setup difference
GPT-5.586.868 %Winner
GPT-5.477.549 %
MMLU-ProOverall. Higher is better. No documented setup difference
GPT-5.588.144 %Winner
GPT-5.487.482 %
MMMU-ProOverall. Higher is better. No documented setup difference
GPT-5.588.266 %Winner
GPT-5.487.514 %
| Benchmark and task | GPT-5.5 | GPT-5.4 | Comparability | Source |
|---|---|---|---|---|
| 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. | 1,465.439 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:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: Snapshot: gpt-5.5, Harness: Arena text, style control GPT-5.4: Snapshot: gpt-5.4, Harness: Arena text, style controlGPT-5.5: Style-controlled Arena rating from 56,647 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 | 45.161 %Winner | 34.984 % | 1accuracyHigher is betterCohort: vals-code-migration:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 68.415 %Winner | 65.268 % | 2accuracyHigher is betterCohort: vals-corp-fin-v2:2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 80.508 %Winner | 72.881 % | 1accuracyHigher is betterCohort: vals-cyberbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 93.182 %Winner | 91.666 % | 1accuracyHigher is betterCohort: vals-gpqa:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 3.75 %Winner | 0 % | 1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 |
| LegalBenchOverall | 86.515 %Winner | 86.044 % | 1accuracyHigher is betterCohort: vals-legal-bench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 85.296 %Winner | 84.141 % | 1accuracyHigher is betterCohort: vals-lcb:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 49.1 %Winner | 41.292 % | 1accuracyHigher is betterCohort: vals-medcode:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 86.868 %Winner | 77.549 % | 1accuracyHigher is betterCohort: vals-medscribe:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 88.144 %Winner | 87.482 % | 1accuracyHigher is betterCohort: vals-mmlu-pro:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 88.266 %Winner | 87.514 % | 1accuracyHigher is betterCohort: vals-mmmu:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 68.76 %Winner | 68.323 % | 1accuracyHigher is betterCohort: vals-mortgage-tax:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 |
| ProgramBenchOverall | 0.5 %Winner | 0 % | 1accuracyHigher is betterCohort: vals-programbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 51.532 %Winner | 43.312 % | 1accuracyHigher is betterCohort: vals-sage:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 62.209 %Winner | 51.711 % | 1accuracyHigher is betterCohort: vals-skillsbench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 82.6 %Winner | 78.2 % | 1accuracyHigher is betterCohort: vals-swebench:1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 | 74.98 %Winner | 73.958 % | 2accuracyHigher is betterCohort: vals-tax-eval-v2:2:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 |
| Terminal-Bench 2.0Overall | 73.202 %Winner | 58.427 % | 2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: No further settings disclosed GPT-5.4: Snapshot: gpt-5.4-2026-03-05 | Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-16-0d39f2e25723Retrieved 2026-08-16 |
| Vibe Code Bench v1.1Overall | 69.847 %Winner | 67.421 % | 1.1accuracyHigher is betterCohort: vals-vibe-code-bench:1.1:overallNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 ControlOverallReasoning: high | 1,481.794 arena pointsNo clear lead 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. | 1,476.571 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:overallNo documented setup differenceNo clear leadGPT-5.5: Snapshot: gpt-5.5-high, Reasoning: high, Harness: Arena text, style control GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Harness: Arena text, style controlGPT-5.5: Style-controlled Arena rating from 55,322 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 MigrationCLIReasoning: xhigh | 36.882 %Winner | 23.788 % | 1accuracyHigher is betterCohort: vals-code-migration:1:cliNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 PagesReasoning: xhigh | 65.618 %Winner | 64.103 % | 2accuracyHigher is betterCohort: vals-corp-fin-v2:2:exact_pagesNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 | 81.356 %Tie | 81.356 %Tie | 1accuracyHigher is betterCohort: vals-cyberbench:1:patchNo documented setup differenceTieGPT-5.5: 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 CoTReasoning: xhigh | 93.434 %Winner | 91.414 % | 1accuracyHigher is betterCohort: vals-gpqa:1:diamond_few_shot_cotNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 passedReasoning: xhigh | 82.246 %Winner | 76.449 % | 1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__antitrust_competitionNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 |
| LegalBenchConclusion TasksReasoning: xhigh | 89.644 %Winner | 88.939 % | 1accuracyHigher is betterCohort: vals-legal-bench:1:conclusion_tasksNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 v6EasyReasoning: xhigh | 98.447 % | 99.068 %Winner | 1accuracyHigher is betterCohort: vals-lcb:1:easyNo documented setup differenceWinner: GPT-5.4GPT-5.5: Reasoning: xhigh, 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-ProBiologyReasoning: xhigh | 94.003 %Winner | 92.887 % | 1accuracyHigher is betterCohort: vals-mmlu-pro:1:biologyNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ExtractionReasoning: xhigh | 76.153 %Winner | 75.994 % | 1accuracyHigher is betterCohort: vals-mortgage-tax:1:numerical_extractionNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ResolvedReasoning: xhigh | 9.5 %Winner | 7 % | 1accuracyHigher is betterCohort: vals-programbench:1:almostNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 |
| SAGEAutomataReasoning: xhigh | 40.476 %Higher measured value | 21.428 % | 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 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 SkillsReasoning: xhigh | 49.875 %Winner | 48.905 % | 1accuracyHigher is betterCohort: vals-skillsbench:1:no_skillsNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 fixReasoning: xhigh | 91.753 %Winner | 88.144 % | 1accuracyHigher is betterCohort: vals-swebench:1:<15 min fixNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 v2CorrectnessReasoning: xhigh | 65.495 %Winner | 64.922 % | 2accuracyHigher is betterCohort: vals-tax-eval-v2:2:correctnessNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 |
| Terminal-Bench 2.0EasyReasoning: high | 85 % | 100 %Winner | 2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:easyNo documented setup differenceWinner: GPT-5.4GPT-5.5: Reasoning: high, Output limit: 128,000 tokens GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: high, Output limit: 128,000 tokens | Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-11-d91717be20e6Retrieved 2026-08-11 |
| Arena Text, Style ControlBusiness, management and finance | 1,486.534 arena pointsNo clear lead 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. | 1,474.218 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_operationsNo documented setup differenceNo clear leadGPT-5.5: Snapshot: gpt-5.5, Harness: Arena text, style control GPT-5.4: Snapshot: gpt-5.4, Harness: Arena text, style controlGPT-5.5: Style-controlled Arena rating from 11,314 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 MigrationCOBOLReasoning: xhigh | 70 %Winner | 68.571 % | 1accuracyHigher is betterCohort: vals-code-migration:1:cobolNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ContextReasoning: xhigh | 70.047 %Winner | 64.918 % | 2accuracyHigher is betterCohort: vals-corp-fin-v2:2:max_fitting_contextNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 | 79.661 %Winner | 64.407 % | 1accuracyHigher is betterCohort: vals-cyberbench:1:pocNo documented setup differenceWinner: GPT-5.5GPT-5.5: 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 CoTReasoning: xhigh | 92.929 %Winner | 91.919 % | 1accuracyHigher is betterCohort: vals-gpqa:1:diamond_zero_shot_cotNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 resolvedReasoning: xhigh | 0 %Tie | 0 %Tie | 1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:antitrust_competitionNo documented setup differenceTieGPT-5.5: Reasoning: xhigh, 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 |
| LegalBenchInterpretation TasksReasoning: xhigh | 83.836 % | 83.921 %Winner | 1accuracyHigher is betterCohort: vals-legal-bench:1:interpretation_tasksNo documented setup differenceWinner: GPT-5.4GPT-5.5: Reasoning: xhigh, 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 v6HardReasoning: xhigh | 69.714 %Winner | 67.714 % | 1accuracyHigher is betterCohort: vals-lcb:1:hardNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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-ProBusinessReasoning: xhigh | 92.015 %Winner | 91.762 % | 1accuracyHigher is betterCohort: vals-mmlu-pro:1:businessNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ExtractionReasoning: xhigh | 61.367 %Winner | 60.652 % | 1accuracyHigher is betterCohort: vals-mortgage-tax:1:semantic_extractionNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ResolvedReasoning: xhigh | 0.5 %Winner | 0 % | 1accuracyHigher is betterCohort: vals-programbench:1:strictNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 |
| SAGECalculusReasoning: xhigh | 72.222 %Higher measured value | 70.988 % | 1accuracyHigher is betterCohort: vals-sage:1:calculusTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Temperature: 1 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 SkillsReasoning: xhigh | 62.209 %Winner | 51.711 % | 1accuracyHigher is betterCohort: vals-skillsbench:1:with_skillsNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 hoursReasoning: xhigh | 66.667 %Winner | 0 % | 1accuracyHigher is betterCohort: vals-swebench:1:>4 hoursNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 ReasoningReasoning: xhigh | 84.464 %Winner | 82.993 % | 2accuracyHigher is betterCohort: vals-tax-eval-v2:2:stepwise_reasoningNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 |
| Terminal-Bench 2.0HardReasoning: high | 60.5 %Winner | 33.333 % | 2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:hardNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: high, Output limit: 128,000 tokens GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: high, Output limit: 128,000 tokens | Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-11-d91717be20e6Retrieved 2026-08-11 |
| Arena Text, Style ControlBusiness, management and financeReasoning: high | 1,489.293 arena pointsNo clear lead 95% confidence interval: ±6.974The 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 points 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_operationsNo documented setup differenceNo clear leadGPT-5.5: Snapshot: gpt-5.5-high, Reasoning: high, Harness: Arena text, style control GPT-5.4: Snapshot: gpt-5.4-high, Reasoning: high, Harness: Arena text, style controlGPT-5.5: Style-controlled Arena rating from 11,166 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 QualityReasoning: xhigh | 3.498 / 5 | 3.632 / 5Winner | 1mean reviewer code-quality ratingHigher is betterCohort: vals-code-migration:1:code_qualityNo documented setup differenceWinner: GPT-5.4GPT-5.5: Reasoning: xhigh, 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 ContextReasoning: xhigh | 69.58 %Winner | 66.783 % | 2accuracyHigher is betterCohort: vals-corp-fin-v2:2:shared_max_contextNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 passedReasoning: xhigh | 78.495 %Winner | 66.667 % | 1criteria pass rateHigher is betterCohort: vals-legal-agent-benchmark:1:criteria_pass_rate__arbitration_international_dispute_resolutionNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 TasksReasoning: xhigh | 91.193 %Winner | 90.526 % | 1accuracyHigher is betterCohort: vals-legal-bench:1:issue_tasksNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 v6MediumReasoning: xhigh | 87.728 %Winner | 85.64 % | 1accuracyHigher is betterCohort: vals-lcb:1:mediumNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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-ProChemistryReasoning: xhigh | 91.254 %Winner | 91.078 % | 1accuracyHigher is betterCohort: vals-mmlu-pro:1:chemistryNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 RateReasoning: xhigh | 70.775 %Winner | 68.596 % | 1accuracyHigher is betterCohort: vals-programbench:1:partialNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: xhigh, 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 AlgebraReasoning: xhigh | 74.436 %Higher measured value | 68.826 % | 1accuracyHigher is betterCohort: vals-sage:1:linear_algebraTest setup not documented as identicalNo direct winnerGPT-5.5: Reasoning: xhigh, Temperature: 1, 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 hoursReasoning: xhigh | 50 %Tie | 50 %Tie | 1accuracyHigher is betterCohort: vals-swebench:1:1-4 hoursNo documented setup differenceTieGPT-5.5: Reasoning: xhigh, 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 |
| Terminal-Bench 2.0MediumReasoning: high | 79.273 %Winner | 69.091 % | 2.0accuracyHigher is betterCohort: vals-terminal-bench-2:2.0:mediumNo documented setup differenceWinner: GPT-5.5GPT-5.5: Reasoning: high, Output limit: 128,000 tokens GPT-5.4: Snapshot: gpt-5.4-2026-03-05, Reasoning: high, Output limit: 128,000 tokens | Vals AIType: Independent evaluationLeaderboard updated: 2026-06-04Import ID: vals-terminal-bench-2-2026-08-11-d91717be20e6Retrieved 2026-08-11 |
| Arena Text, Style ControlChinese | 1,534.524 arena pointsWinner 95% confidence interval: ±12.143The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,496.688 arena points 95% confidence interval: ±11.202The 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:chineseNo documented setup differenceWinner: GPT-5.5GPT-5.5: Snapshot: gpt-5.5, Harness: Arena text, style control GPT-5.4: Snapshot: gpt-5.4, Harness: Arena text, style controlGPT-5.5: Style-controlled Arena rating from 3,010 anonymous pairwise votes.GPT-5.4: Style-controlled Arena rating from 3,574 anonymous pairwise votes. | ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16 |
The table shows 64 diversified result series from 178 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.
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