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Head-to-head comparison

Grok 4.5 vs. MiMo-V2.5-Pro

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

110

shared result series

19

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 Grok 4.5 and MiMo-V2.5-Pro
AttributeGrok 4.5MiMo-V2.5-Pro
ProviderxAIXiaomi
ReleasedJul 16, 2026Apr 23, 2026
AvailabilityActiveOpen Source
Model typeProprietaryOpen Weights
ParametersNot published1T, 42B active
ArchitectureNot publishedMixture of Experts
Context window500,000 tokens1,000,000 tokens
Knowledge cutoffFebruary 1, 2026Not published
Technical sourcesModelModel
API pricing per 1M tokens
API input$2 ≤200K / $4 >200K$0.43
API output$6 ≤200K / $12 >200K$0.87
Cache read$0.3 ≤200K / $0.6 >200K$0.
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified08/11/2026Source07/31/2026Source
Grok 4.5MiMo-V2.5-Pro
API inputUSD per 1M tokens, base tier
Grok 4.5$2
MiMo-V2.5-Pro$0.435Lower price
API outputUSD per 1M tokens, base tier
Grok 4.5$6
MiMo-V2.5-Pro$0.87Lower price
Cache readUSD per 1M tokens, base tier
Grok 4.5$0.3
MiMo-V2.5-Pro$0.004Lower 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.

110 shared result series
Grok 4.5MiMo-V2.5-Pro
Arena Text, Style ControlOverall. Higher is better. No documented setup difference
Grok 4.51,468.402 arena pointsNo clear lead
MiMo-V2.5-Pro1,467.876 arena points
Code MigrationOverall. Higher is better. No documented setup difference
Grok 4.536.596 %Winner
MiMo-V2.5-Pro21.557 %
CorpFin v2Overall. Higher is better. No documented setup difference
Grok 4.567.405 %Winner
MiMo-V2.5-Pro61.422 %
EMBOverall. Higher is better. No documented setup difference
Grok 4.552.911 %
MiMo-V2.5-Pro55.228 %Winner
Finance Agent (v2)Overall. Higher is better. No documented setup difference
Grok 4.548.349 %Winner
MiMo-V2.5-Pro41.502 %
GPQA DiamondOverall. Higher is better. No documented setup difference
Grok 4.592.929 %Winner
MiMo-V2.5-Pro82.576 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
Grok 4.512.917 %Winner
MiMo-V2.5-Pro2.083 %
Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference
Grok 4.537.981 %Winner
MiMo-V2.5-Pro15.865 %
LegalBenchOverall. Higher is better. No documented setup difference
Grok 4.585.965 %Winner
MiMo-V2.5-Pro77.129 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
Grok 4.587.351 %Winner
MiMo-V2.5-Pro81.354 %
MedCodeOverall. Higher is better. No documented setup difference
Grok 4.543.291 %Winner
MiMo-V2.5-Pro32.484 %
MedScribeOverall. Higher is better. No documented setup difference
Grok 4.586.884 %Winner
MiMo-V2.5-Pro83.73 %
Benchmark scores for Grok 4.5 and MiMo-V2.5-Pro
Benchmark and taskGrok 4.5MiMo-V2.5-ProComparabilitySource
Arena Text, Style ControlOverall
1,468.402 arena pointsNo clear lead
95% confidence interval: ±5.451The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,467.876 arena points
95% confidence interval: ±4.128The 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 leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 17,738 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 50,613 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationOverall
36.596 %Winner
21.557 %
1accuracyHigher is betterCohort: vals-code-migration:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
67.405 %Winner
61.422 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-corp_fin_v2-2026-08-16-45bbf84f57abRetrieved 2026-08-16
EMBOverall
52.911 %
55.228 %Winner
1accuracyHigher is betterCohort: vals-emb:1:overallNo documented setup differenceWinner: MiMo-V2.5-ProGrok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
48.349 %Winner
41.502 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-fabv2-2026-08-16-8853da43085dRetrieved 2026-08-16
GPQA DiamondOverall
92.929 %Winner
82.576 %
1accuracyHigher is betterCohort: vals-gpqa:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
12.917 %Winner
2.083 %
1task resolution rateHigher is betterCohort: vals-legal-agent-benchmark:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
37.981 %Winner
15.865 %
1all-pass rateHigher is betterCohort: vals-legal-research:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-legal_research-2026-08-16-af296c00ecaaRetrieved 2026-08-16
LegalBenchOverall
85.965 %Winner
77.129 %
1accuracyHigher is betterCohort: vals-legal-bench:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
87.351 %Winner
81.354 %
1accuracyHigher is betterCohort: vals-lcb:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-lcb-2026-08-16-17b9c147080dRetrieved 2026-08-16
MedCodeOverall
43.291 %Winner
32.484 %
1accuracyHigher is betterCohort: vals-medcode:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medcode-2026-08-16-524f7f474eacRetrieved 2026-08-16
MedScribeOverall
86.884 %Winner
83.73 %
1accuracyHigher is betterCohort: vals-medscribe:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-medscribe-2026-08-16-c385354a7e62Retrieved 2026-08-16
MMLU-ProOverall
89.216 %Winner
84.595 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-mmlu_pro-2026-08-16-e14d5bb3a34cRetrieved 2026-08-16
ProofBenchOverall
31 %Winner
22 %
1.1accuracyHigher is betterCohort: vals-proof-bench:1.1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-proof_bench-2026-08-16-14232db24de1Retrieved 2026-08-16
SWE-bench VerifiedOverall
86.6 %Winner
74 %
1accuracyHigher is betterCohort: vals-swebench:1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-swebench-2026-08-16-c133071b8167Retrieved 2026-08-16
TaxEval v2Overall
71.668 %
73.794 %Winner
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:overallNo documented setup differenceWinner: MiMo-V2.5-ProGrok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-12Import ID: vals-tax_eval_v2-2026-08-16-5bbd495dac53Retrieved 2026-08-16
Terminal-Bench 2.1Overall
67.79 %Winner
57.303 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: 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
51.528 %Winner
40.974 %
2weighted index scoreHigher is betterCohort: vals-vals-index:2:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-14Import ID: vals-vals_index-2026-08-16-ab641d89d6edRetrieved 2026-08-16
Vibe Code Bench v1.1Overall
69.002 %Winner
34.113 %
1.1accuracyHigher is betterCohort: vals-vibe-code-bench:1.1:overallNo documented setup differenceWinner: Grok 4.5Grok 4.5: Harness: OpenHands
MiMo-V2.5-Pro: Harness: OpenHands
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-13Import ID: vals-vibe-code-2026-08-16-a73c9770bcc4Retrieved 2026-08-16
Arena Text, Style ControlBusiness, management and finance
1,463.683 arena points
95% confidence interval: ±10.477The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,470.913 arena pointsNo clear lead
95% confidence interval: ±7.118The 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 leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 3,544 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 10,018 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCLI
25.461 %Higher measured value
13.981 %
1accuracyHigher is betterCohort: vals-code-migration:1:cliTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
66.317 %Higher measured value
60.373 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:exact_pagesTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
EMBComps
39.489 %
47.341 %Higher measured value
1accuracyHigher is betterCohort: vals-emb:1:compsTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)Adjustments
38.568 %Higher measured value
34.386 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:adjustmentsTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
GPQA DiamondFew-Shot CoT
92.929 %Higher measured value
80.808 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_few_shot_cotTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-gpqa-2026-08-11-d3325290a404Retrieved 2026-08-11
LegalBenchConclusion Tasks
89.507 %Higher measured value
88.031 %
1accuracyHigher is betterCohort: vals-legal-bench:1:conclusion_tasksTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
99.068 %No direct winner
99.068 %No direct winner
1accuracyHigher is betterCohort: vals-lcb:1:easyTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
94.282 %Higher measured value
92.469 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:biologyTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
SWE-bench Verified<15 min fix
93.814 %Higher measured value
82.474 %
1accuracyHigher is betterCohort: vals-swebench:1:<15 min fixTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
62.551 %
63.123 %Higher measured value
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:correctnessTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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 2.1Easy
91.667 %Higher measured value
75 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:easyTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexCorpFin v2
68.415 %Higher measured value
62.471 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:corp_fin_v2Test setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlChinese
1,518.205 arena pointsNo clear lead
95% confidence interval: ±18.199The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,511.817 arena points
95% confidence interval: ±12.271The 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 differenceNo clear leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 1,180 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 2,736 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCOBOL
70 %Higher measured value
44.286 %
1accuracyHigher is betterCohort: vals-code-migration:1:cobolTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
67.483 %Higher measured value
61.422 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:max_fitting_contextTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
EMBDataroom
64.953 %
77.965 %Higher measured value
1accuracyHigher is betterCohort: vals-emb:1:dataroomTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)All-Pass
36.743 %Higher measured value
28.848 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:all_passTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
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
84.343 %
1accuracyHigher is betterCohort: vals-gpqa:1:diamond_zero_shot_cotTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-gpqa-2026-08-11-d3325290a404Retrieved 2026-08-11
LegalBenchInterpretation Tasks
83.22 %Higher measured value
79.497 %
1accuracyHigher is betterCohort: vals-legal-bench:1:interpretation_tasksTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
73.429 %Higher measured value
58.571 %
1accuracyHigher is betterCohort: vals-lcb:1:hardTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
89.987 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:businessTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
SWE-bench Verified>4 hours
66.667 %Higher measured value
33.333 %
1accuracyHigher is betterCohort: vals-swebench:1:>4 hoursTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
80.785 %
84.464 %Higher measured value
2accuracyHigher is betterCohort: vals-tax-eval-v2:2:stepwise_reasoningTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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 2.1Hard
56.667 %Higher measured value
40 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:hardTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexFinance Agent v2
48.751 %Higher measured value
41.243 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:finance_agentTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlCoding
1,520.498 arena pointsNo clear lead
95% confidence interval: ±8.924The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,520.126 arena points
95% confidence interval: ±6.518The 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:codingNo documented setup differenceNo clear leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 5,172 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 13,962 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
Code MigrationCode Quality
4.078 / 5Higher measured value
3.382 / 5
1mean reviewer code-quality ratingHigher is betterCohort: vals-code-migration:1:code_qualityTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
68.415 %Higher measured value
62.471 %
2accuracyHigher is betterCohort: vals-corp-fin-v2:2:shared_max_contextTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
EMBDCF
41.455 %
43.63 %Higher measured value
1accuracyHigher is betterCohort: vals-emb:1:dcfTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)Comparables
41.768 %Higher measured value
40.15 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:comparablesTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
LegalBenchIssue Tasks
90.129 %Higher measured value
80.173 %
1accuracyHigher is betterCohort: vals-legal-bench:1:issue_tasksTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
89.556 %Higher measured value
86.423 %
1accuracyHigher is betterCohort: vals-lcb:1:mediumTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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
91.608 %Higher measured value
90.459 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:chemistryTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
SWE-bench Verified1-4 hours
73.81 %Higher measured value
33.333 %
1accuracyHigher is betterCohort: vals-swebench:1:1-4 hoursTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, 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 2.1Medium
72.121 %Higher measured value
65.455 %
2.1accuracyHigher is betterCohort: vals-terminal-bench-2-1:2.1:mediumTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-terminal-bench-2-1-2026-08-11-8f0ebd72a609Retrieved 2026-08-11
Vals IndexSWE-bench
86.275 %Winner
66.667 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:swebenchNo documented setup differenceWinner: Grok 4.5Grok 4.5: No further settings disclosed
MiMo-V2.5-Pro: No further settings disclosed
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlCreative writing
1,444.161 arena pointsNo clear lead
95% confidence interval: ±11.12The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,433.675 arena points
95% confidence interval: ±7.575The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
style-control-v1style-controlled Bradley-Terry ratingHigher is betterCohort: lmarena-text-style-control:2026-08-12:creative_writingNo documented setup differenceNo clear leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 3,312 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 8,652 anonymous pairwise votes.
ArenaType: Official benchmark leaderboardLeaderboard updated: 2026-08-12Import ID: lmarena-eeedf9209373a7f9b324bfb839e7b02fedacd1e5-1611ed64f3f1Retrieved 2026-08-16
EMBLBO
48.684 %Higher measured value
47.739 %
1accuracyHigher is betterCohort: vals-emb:1:lboTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-emb-2026-08-11-e3c855e236e4Retrieved 2026-08-11
Finance Agent (v2)Disclosure Analysis
56.412 %Higher measured value
53.148 %
2accuracyHigher is betterCohort: vals-finance-agent-v2:2:disclosure_analysisTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-06Import ID: vals-fabv2-2026-08-11-3e5c93a1857cRetrieved 2026-08-11
LegalBenchRhetoric Tasks
82.802 %Higher measured value
64.964 %
1accuracyHigher is betterCohort: vals-legal-bench:1:rhetoric_tasksTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-legal_bench-2026-08-11-836e5e44618eRetrieved 2026-08-11
MMLU-ProComputer Science
90.976 %Higher measured value
88.049 %
1accuracyHigher is betterCohort: vals-mmlu-pro:1:computer_scienceTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-mmlu_pro-2026-08-11-b8e53828d746Retrieved 2026-08-11
SWE-bench Verified15 min - 1 hour
83.525 %Higher measured value
74.713 %
1accuracyHigher is betterCohort: vals-swebench:1:15 min - 1 hourTest setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-08Import ID: vals-swebench-2026-08-11-a6212cd857d8Retrieved 2026-08-11
Vals IndexTerminal-Bench 2.1
67.79 %Higher measured value
57.303 %
1.2benchmark scoreHigher is betterCohort: vals-vals-index:1.2:terminal_bench_2_1Test setup not documented as identicalNo direct winnerGrok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
MiMo-V2.5-Pro: Temperature: 1, Top P: 0.95, Output limit: 128,000 tokens
Vals AIType: Independent evaluationLeaderboard updated: 2026-08-09Import ID: vals-vals_index-2026-08-11-e79d08d59249Retrieved 2026-08-11
Arena Text, Style ControlEnglish
1,472.437 arena points
95% confidence interval: ±7.511The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,482.21 arena pointsNo clear lead
95% confidence interval: ±5.356The 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:englishNo documented setup differenceNo clear leadGrok 4.5: Snapshot: grok-4.5, Harness: Arena text, style control
MiMo-V2.5-Pro: Snapshot: mimo-v2.5-pro, Harness: Arena text, style control
Grok 4.5: Style-controlled Arena rating from 7,287 anonymous pairwise votes.MiMo-V2.5-Pro: Style-controlled Arena rating from 22,059 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 110 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.