Comparing 2 models

Claude Fable 5 vs GPT-5.4 Mini

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 Mini
Best for
Autonomous Agents (#1)
Fast Summaries (#2)
Provider
anthropic
openai
Context
1MBest
400K
Input / 1M
$10
$0.75Best
Output / 1M
$50
$4.50Best
Tool use
yesBest
yesBest
Vision
yesBest
yesBest
Reasoning
yesBest
yesBest
Open-weight
Released
Jun 9, 2026
Mar 17, 2026