Grok 4.20
Grok 4.20.
xAI Released 17 Feb 2026
86
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
xAI Feb 2026
Grok 4.20
Closed weights
152.3
#51 of 271
Epoch Capabilities Index
- Terminal-Bench 2.0 57.3% #14 /43
- ZeroBench 10% #29 /66
- Harvey LAB (Legal Agent Benchmark) 0% #66 /80
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% | #16 of 107 | Official leaderboard | |
| CL-bench | 22.2% | #4 of 24 | Official leaderboard | |
| BullshitBench V2 | 56% | #37 of 122 | Official leaderboard | |
| Extended NYT Connections | 85.4% | #30 of 97 | Official leaderboard | |
| Longform Creative Writing (EQ-Bench) | 68.5 | #45 of 119 | Official leaderboard | |
| Creative Writing v3 | 65.7 | #69 of 120 | Official leaderboard | |
| CL-bench Life | 11.9% | #11 of 16 | Official leaderboard | |
| SimpleQA Verified | 30.2% | #65 of 84 | Epoch AI | |
| EQ-Bench 3 | 893 | #69 of 78 | Official leaderboard |
Math and science
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| ForecastBench | 54.8 | #11 of 86 | Official leaderboard | |
| GPQA Diamond | 89.3% | #49 of 219 | Epoch AI | |
| OTIS Mock AIME 2024-2025 | 92.2% | #53 of 202 | Epoch AI | |
| DTBench | 83.5% | #47 of 178 | Official leaderboard | |
| ARC-AGI-2 | 65.1% | #29 of 95 | Official leaderboard | |
| ARC-AGI | 89.5% | #34 of 92 | Official leaderboard | |
| Echo General AI Prediction Leaderboard | 1,001 | #9 of 17 | Official leaderboard | |
| FrontierMath Tiers 1-3 v2 | 44.9% | #58 of 89 | Epoch AI | |
| ProofBench | 14% | #39 of 59 | Official leaderboard | |
| FrontierMath Tier 4 v2 | 17.1% | #52 of 71 | Epoch AI | |
| Leipzig Benchmark | 5.00% | #19 of 19 | Official leaderboard | |
| Human Behavior Bench | 73.5 | #11 of 11 | Official leaderboard |
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| IOI (Vals) | 30.2% | #16 of 55 | Official leaderboard | |
| WeirdML | 52.3% | #45 of 130 | Epoch AI | |
| ALE-Bench | 1,150 | #48 of 121 | Epoch AI | |
| WebDev Arena | 1,374 | #75 of 105 | Epoch AI | |
| Vibe Code Bench | 4.06% | #102 of 115 | Official leaderboard | |
| Code Migration | 0.31% | #77 of 78 | Official leaderboard |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Game Arena Bargaining | 226 | #8 of 36 | Official leaderboard | |
| LLM Chess | 843 | #28 of 124 | Official leaderboard | |
| LisanBench | 3856.3 | #31 of 133 | Official leaderboard | |
| PinchBench 2.0 | 80.3% | #17 of 57 | Official leaderboard | |
| Terminal-Bench 2.0 | 57.3% | #14 of 43 | Official leaderboard | |
| Game Arena Five in a Row | 618 | #8 of 20 | Official leaderboard | |
| Pencil Puzzle Bench | 6.70% | #22 of 53 | Official leaderboard | |
| PinchBench | 71.2% | #21 of 48 | Official leaderboard | |
| Chess Puzzles | 29% | #49 of 83 | Epoch AI | |
| Game Arena Four in a Row | 291 | #24 of 38 | Official leaderboard | |
| Game Arena Chess | 665 | #25 of 39 | Official leaderboard | |
| Game Arena Coin Game | 248 | #24 of 35 | Official leaderboard | |
| Game Arena Lines of Action | 403 | #26 of 36 | Official leaderboard | |
| Game Arena Ultimate Tic-Tac-Toe | 169 | #27 of 36 | Official leaderboard | |
| Game Arena Dots and Boxes | 625 | #28 of 37 | Official leaderboard | |
| Kaggle Game Arena | 189 | #30 of 39 | Official leaderboard | |
| Game Arena Nine Men's Morris | 375 | #29 of 36 | Official leaderboard | |
| Game Arena Clobber | 107 | #30 of 36 | Official leaderboard | |
| Game Arena Go | 470 | #30 of 36 | Official leaderboard | |
| Game Arena Word Association | 58 | #31 of 36 | Official leaderboard | |
| Game Arena Checkers | 416 | #33 of 38 | Official leaderboard | |
| Game Arena Reversi | 124 | #32 of 36 | Official leaderboard | |
| CEO-Bench | $0 | #17 of 19 | Official leaderboard | |
| Game Arena Poker | -25.68 | #29 of 31 | Official leaderboard | |
| Game Arena Word Art | 67 | #33 of 35 | Official leaderboard | |
| Game Arena Dark Hex | 45 | #36 of 38 | Official leaderboard | |
| Long-Horizon-Terminal-Bench (LHTB) | 10.2% | #25 of 25 | Official leaderboard | |
| ARC-AGI-3 | 0.09% | #24 of 24 | Official leaderboard |
Professional work
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| TaxEval v2 | 74.1% | #40 of 129 | Official leaderboard | |
| CorpFin v2 | 63.7% | #44 of 119 | Official leaderboard | |
| prinzbench | 43.0 | #11 of 26 | Official leaderboard | |
| Vals Finance Agent | 52.3% | #24 of 49 | Official leaderboard | |
| Vending-Bench 2 | $4,663 | #37 of 66 | Official leaderboard | |
| ProfBench | 43.8% | #51 of 72 | Official leaderboard | |
| CaseLaw v2 | 54.5% | #38 of 53 | Official leaderboard | |
| LegalBench | 77.7% | #99 of 138 | Official leaderboard | |
| Harvey LAB (Legal Agent Benchmark) | 0% | #66 of 80 | Official leaderboard | |
| Legal Research Bench | 13.9% | #74 of 88 | Official leaderboard | |
| MedCode | 32.2% | #84 of 96 | Official leaderboard | |
| MortgageTax | 45.4% | #77 of 86 | Official leaderboard | |
| Tax Agent Bench | 6.95% | #71 of 79 | Official leaderboard | |
| Vals Finance Agent v2 | 28.5% | #74 of 80 | Official leaderboard | |
| MedScribe | 63.4% | #92 of 98 | Official leaderboard | |
| Excel Modeling Benchmark | 11.7% | #73 of 76 | Official leaderboard | |
| PhysicianBench | 5.30% | #13 of 13 | Official leaderboard |
Vision, audio and robotics
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| ZeroBench | 10% | #29 of 66 | Official leaderboard | |
| Blueprint-Bench 2 | 0% | #33 of 35 | Official leaderboard | |
| ArtifactArena | 745 | #21 of 21 | Official leaderboard |
Safety and security
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| PCT (Polarized Contrastive Pairs) | 39.9% | #15 of 46 | Official leaderboard | |
| Human Pathogen Capabilities Test v2 (HPCT v2) | 56.2% | #32 of 71 | Official leaderboard | |
| Dictatorship Eval | 25.2% | #17 of 20 | Official leaderboard |
Other
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| ACCoRD | 68.8 | #54 of 150 | Official leaderboard | |
| Conceptual Reasoning Index | 53.7 | #54 of 149 | Official leaderboard | |
| LMCA | 38.7% | #55 of 139 | Epoch AI | |
| CAIS Risk Index | 51.7 | #33 of 65 | Official leaderboard | |
| CAIS Vision Capabilities Index | 48.5 | #28 of 53 | Official leaderboard | |
| CAIS Text Capabilities Index | 24.3 | #44 of 66 | Official leaderboard | |
| SAGE (Vals) | 38.2% | #60 of 81 | Official leaderboard | |
| Vals Multimodal Index | 39.1% | #32 of 33 | Official leaderboard |
xAI's models over time
xAI's models in color, against every other model on the Epoch Capabilities Index, by release date.