claude-fable-5 vs gemma-4-31b Benchmark Comparison

Direct benchmark comparison between claude-fable-5 and gemma-4-31b based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
claude-fable-5	1508	$0.00001	45
gemma-4-31b	1451	$1.2e-7	56

*These models represent the Pareto Frontier (optimal cost-to-performance).*

Comparison Summary: claude-fable-5 is the more capable model in this pair, leading by 57 Elo points. Specifically, gemma-4-31b is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.