Grok 4.3
Grok 4.3 ranks first on CaseLaw v2.
119
Benchmarks with a score
1
Ranked first, out of five or more models
1
In the top three
xAI Apr 2026
Grok 4.3
Closed weights Flagship
No Epoch Capabilities Index score yet
- Agents' Last Exam 7.24% #29 /31
- ZeroBench 13% #31 /76
- SkillsBench 41.7% #17 /22
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Knowledge and language
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| BullshitBench | 61.8% | #17 of 107 | Official leaderboard | |
| LMArena (Elo) | 1,442 | #75 of 335 | Official leaderboard | |
| Wer wird Millionär? LLM Benchmark | 76200.0 | #22 of 77 | Official leaderboard | |
| BullshitBench V2 | 50% | #50 of 129 | Official leaderboard | |
| Phare | 68.6% | #26 of 62 | Official leaderboard | |
| Judgemark v4 | 49.6 | #26 of 40 | Official leaderboard | |
| Extended NYT Connections | 55.2% | #68 of 103 | Official leaderboard | |
| DesignArena ASCII Art | 1,121 | #60 of 77 | Official leaderboard | |
| Antidote | 950 | #30 of 36 | Official leaderboard | |
| StudyArena Text | 1,187 | #72 of 85 | Official leaderboard | |
| EQ-Bench 4 | 1,065 | #29 of 32 | Official leaderboard | |
| OpenAI MRCR v2 | 6.64% | #45 of 47 | Official leaderboard | |
| Lech Mazur Creative Writing | -4.30 | #49 of 50 | Official leaderboard |
Math and science
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| DTBench | 90.7% | #47 of 180 | Official leaderboard | |
| ForecastBench | 0.13 | #24 of 82 | Official leaderboard | |
| FrontierMath Tiers 1-3 v2 | 42.8% | #58 of 86 | Official leaderboard | |
| ProofBench | 11% | #42 of 59 | Official leaderboard | |
| FrontierMath Tier 4 v2 | 14.6% | #53 of 68 | Official leaderboard | |
| Leipzig Benchmark | 6.00% | #18 of 19 | Official leaderboard | |
| ResearchClawBench | 12.4 | #23 of 23 | Official leaderboard |
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| WeirdML | 49.9% | #47 of 112 | Official leaderboard | |
| IOI (Vals) | 15.3% | #28 of 55 | Official leaderboard | |
| DesignArena Website | 1,187 | #81 of 151 | Official leaderboard | |
| DesignArena Code | 1,176 | #79 of 143 | Official leaderboard | |
| DesignArena UI Component | 1,186 | #77 of 139 | Official leaderboard | |
| DesignArena Game Dev | 1,161 | #81 of 143 | Official leaderboard | |
| DesignArena Data Visualization | 1,177 | #74 of 118 | Official leaderboard | |
| ALE-Bench | 1,211 | #82 of 126 | Official leaderboard | |
| DesignArena 3D Design | 1,107 | #91 of 136 | Official leaderboard | |
| DesignArena Agentic Image to HTML | 1,177 | #8 of 11 | Official leaderboard | |
| Vibe Code Bench | 19.4% | #90 of 120 | Official leaderboard | |
| DesignArena SVG | 1,072 | #78 of 103 | Official leaderboard | |
| DesignArena Frontend Web App | 1,108 | #41 of 53 | Official leaderboard | |
| DesignArena Image to Frontend | 1,128 | #24 of 31 | Official leaderboard | |
| Code Arena | 1,357 | #100 of 128 | Official leaderboard | |
| DesignArena Agentic Overall | 1,035 | #63 of 74 | Official leaderboard | |
| Code Migration | 6.79% | #68 of 78 | Official leaderboard | |
| Image-to-WebDev Arena | 1,376 | #52 of 55 | Official leaderboard | |
| DesignArena Full Stack | 986 | #47 of 49 | Official leaderboard | |
| DesignArena React Native | 1,052 | #54 of 56 | Official leaderboard | |
| DesignArena Image to HTML | 1,071 | #50 of 51 | Official leaderboard | |
| DesignArena Android (Kotlin) | 955 | #46 of 46 | Official leaderboard | |
| DesignArena Agentic Game Dev | 956 | #27 of 27 | Official leaderboard | |
| DesignArena Godot Game Dev | 919 | #24 of 24 | Official leaderboard |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| LLM Chess | 179 | #57 of 123 | Official leaderboard | |
| PinchBench 2.0 | 73.7% | #28 of 57 | Official leaderboard | |
| Pencil Puzzle Bench | 3.30% | #29 of 53 | Official leaderboard | |
| LMArena Search Arena | 1,194 | #22 of 37 | Official leaderboard | |
| Clocktower Radio | 1,530 | #14 of 23 | Official leaderboard | |
| Game Arena Coin Game | 283 | #27 of 39 | Official leaderboard | |
| PACT | 1,504 | #18 of 26 | Official leaderboard | |
| Game Arena Five in a Row | 367 | #15 of 20 | Official leaderboard | |
| Game Arena Chess | 595 | #32 of 42 | Official leaderboard | |
| SkillsBench | 41.7% | #17 of 22 | Official leaderboard | |
| Game Arena Word Association | 108 | #31 of 40 | Official leaderboard | |
| Game Arena Poker | -16.53 | #25 of 31 | Official leaderboard | |
| RuneBench | 3.66 | #63 of 76 | Official leaderboard | |
| Game Arena Four in a Row | 195 | #36 of 43 | Official leaderboard | |
| Game Arena Lines of Action | 184 | #35 of 39 | Official leaderboard | |
| Game Arena Ultimate Tic-Tac-Toe | 29 | #35 of 39 | Official leaderboard | |
| Game Arena Dots and Boxes | 559 | #36 of 40 | Official leaderboard | |
| Game Arena Bargaining | 125 | #36 of 39 | Official leaderboard | |
| Game Arena Dark Hex | 67 | #38 of 41 | Official leaderboard | |
| Kaggle Game Arena | 153 | #39 of 42 | Official leaderboard | |
| Game Arena Go | 130 | #37 of 39 | Official leaderboard | |
| Game Arena Nine Men's Morris | 11 | #38 of 39 | Official leaderboard | |
| Game Arena Reversi | 14 | #38 of 39 | Official leaderboard | |
| Game Arena Word Art | 2 | #38 of 39 | Official leaderboard | |
| Game Arena Checkers | 0 | #41 of 41 | Official leaderboard | |
| Game Arena Clobber | 0 | #39 of 39 | Official leaderboard |
Professional work
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| CaseLaw v2 | 79.3% | #1 of 53 | Official leaderboard | |
| CorpFin v2 | 68.5% | #8 of 119 | Official leaderboard | |
| LegalBench | 84.5% | #32 of 138 | Official leaderboard | |
| Vals Finance Agent | 53.8% | #18 of 49 | Official leaderboard | |
| FoodTruck Bench | $27,880 | #24 of 59 | Official leaderboard | |
| Vals Index v1 | 52.5% | #19 of 34 | Official leaderboard | |
| TaxEval v2 | 70.8% | #81 of 129 | Official leaderboard | |
| PolicyBench | 80.3% | #34 of 50 | Official leaderboard | |
| MedCode | 38.1% | #68 of 96 | Official leaderboard | |
| ProfBench | 43.3% | #53 of 72 | Official leaderboard | |
| MedScribe | 74.4% | #75 of 97 | Official leaderboard | |
| Harvey LAB (Legal Agent Benchmark) | 0.42% | #62 of 80 | Official leaderboard | |
| Legal Research Bench | 15.4% | #75 of 93 | Official leaderboard | |
| Vals Finance Agent v2 | 37.7% | #66 of 80 | Official leaderboard | |
| MortgageTax | 48.3% | #77 of 87 | Official leaderboard | |
| Vals Index v2 | 24.3% | #58 of 65 | Official leaderboard | |
| Public Benefits Bench | 51.7% | #45 of 50 | Official leaderboard | |
| Vending-Bench 2 | $35 | #62 of 67 | Official leaderboard | |
| Tax Agent Bench | 6.18% | #78 of 84 | Official leaderboard | |
| Excel Modeling Benchmark | 18.4% | #71 of 76 | Official leaderboard | |
| Agents' Last Exam | 7.24% | #29 of 31 | Official leaderboard | |
| DesignArena Spreadsheet | 964 | #34 of 35 | Official leaderboard | |
| DesignArena PDF | 928 | #37 of 37 | Official leaderboard | |
| DesignArena Python-PPTX Slides | 970 | #36 of 36 | Official leaderboard | |
| DesignArena HTML Slides | 905 | #28 of 28 | Official leaderboard | |
| CHI-Bench | 5.80% | #23 of 23 | Official leaderboard | |
| Workspace-Bench-Lite | 36.9% | #9 of 9 | Official leaderboard |
Vision, audio and robotics
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Vision Arena | 1,242 | #54 of 136 | Official leaderboard | |
| ZeroBench | 13% | #31 of 76 | Official leaderboard | |
| MineBench | 1,147 | #59 of 75 | Official leaderboard | |
| GeoBench | 56% | #39 of 48 | Official leaderboard | |
| Chartography | 12.9% | #35 of 43 | Official leaderboard | |
| BVB | 56.6 | #40 of 45 | Official leaderboard | |
| Blueprint-Bench 2 | 0% | #38 of 38 | Official leaderboard | |
| DesignArena Code to Video | 896 | #29 of 29 | Official leaderboard |
Safety and security
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| nocot-bench (NCRI) | 69.2 | #104 of 185 | Official leaderboard | |
| PCT (Polarized Contrastive Pairs) | 51.6% | #35 of 46 | Official leaderboard | |
| Dictatorship Eval | 37.9% | #16 of 20 | Official leaderboard | |
| CyberBench (Vals) | 47.5% | #22 of 26 | Official leaderboard | |
| GeneBench Pro | 1.47% | #12 of 12 | Official leaderboard | |
| LifeSciBench | 39.9% | #4 of 4 | Official leaderboard |
Other
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Conceptual Reasoning Index | 52.9 | #60 of 151 | Official leaderboard | |
| LMCA | 38.3% | #63 of 147 | Official leaderboard | |
| ACCoRD | 65.3 | #74 of 152 | Official leaderboard | |
| CAIS Vision Capabilities Index | 48.4 | #29 of 53 | Official leaderboard | |
| CAIS Risk Index | 54.5 | #42 of 67 | Official leaderboard | |
| CAIS Text Capabilities Index | 23.4 | #47 of 68 | Official leaderboard | |
| Vals Multimodal Index | 43.3% | #29 of 33 | Official leaderboard | |
| SAGE (Vals) | 19.7% | #81 of 81 | Official leaderboard |