Comparing 2 models

Claude Fable 5 vs GPT-5.4

Facts first, then task-specific rankings. A highlighted cell is better only for that row, not universally.

metric
Model 1Claude Fable 5
Model 2GPT-5.4
Best for
Autonomous Agents (#1)
Fast Summaries (#1)
Provider
anthropic
openai
Context
1M
1.1MBest
Input / 1M
$10
$2.50Best
Output / 1M
$50
$15Best
Tool use
yesBest
yesBest
Vision
yesBest
yesBest
Reasoning
yesBest
yesBest
Open-weight
Released
Jun 9, 2026
Mar 5, 2026