Grok 4.20
#46 of 274 scored.
xAIFeb 17, 2026Closed
Capabilities Index
Range 149.4–154.5
152.0
Context
Takes text, image, file
2M
Input
Per 1M tokens
$1.25
Output
Per 1M tokens
$2.50
Benchmarks
How it scores.
- GPQA Diamond85.8%
44th of 186
- FrontierMath44.9%
50th of 81
- ARC-AGI-265.1%
21st of 79
- SimpleQA Verified30.2%
60th of 77
- Mock AIME92.2%
45th of 176
- Terminal-Bench57.3%
11th of 35
Everything else Epoch has for it
- ARC-AGI89.5%
- DTBench83.5%
- WeirdML52.3%
- LMCA45.5%
- CL-bench22.2%
- Chess Puzzles20.0%
- FrontierMath-Tier-4-v2-Private17.1%
- ProofBench14.0%
- CL-bench Life11.9%
On the index
Around it.
Sources