ModelCap

Current AI model comparison

Exact identities · public evidence

Anthropic

Claude Opus 5.5

Position

#1

Index

98.6

Measured

2 public benchmark observations across 2 boards

Comparison side 1

xAI

Grok 4.7

Position

#4

Index

88.2

Measured

1 public benchmark observation across 1 board

Comparison side 2

Output / 1M

$20.00

vs $4.80

Context

1M

vs 500K

Weights

API only

vs API only