ModelCap
Current AI model comparison
Exact identities · public evidence
Anthropic
Claude Fable 5.1
Position
#2
Index
84.1
Measured
2 public benchmark observations across 2 boards
Comparison side 1
OpenAI
GPT-5.3-Codex
Position
#24
Index
65.4
Measured
1 public benchmark observation across 1 board
Comparison side 2
Output / 1M
$50.00
vs $14.00
Context
1M
vs 400K
Weights
API only
vs API only