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

OpenAI

GPT-6 Luna

Position

#25

Index

78.6

Measured

3 public benchmark observations across 3 boards

Comparison side 2

Output / 1M

$20.00

vs $0.50

Context

1M

vs 1M

Weights

API only

vs API only