ModelCap
Current AI model comparison
Exact identities · public evidence
OpenAI
GPT-5.3-Codex
Position
#20
Index
66.4
Measured
1 public benchmark observation across 1 board
Comparison side 1
OpenAI
GPT-5.6 Luna
Position
#17
Index
67.9
Measured
6 public benchmark observations across 6 boards
Comparison side 2
Output / 1M
$14.00
vs $1.20
Context
400K
vs 1M
Weights
API only
vs API only