Claude Fable 5 alternatives
Match · Updated July 2026
The closest alternative to Claude Fable 5 is GPT-5.6 Sol — comparable intelligence (58.9 vs 59.9); for a cheaper option, Claude Opus 5 runs $5.00/M vs $10.00/M; and the best open-weight substitute is Kimi K3.
Closest match
Cheaper alternatives
claude-opus-5
$5.00/M input · 60.7 intel
claude-fable-5:batch
$5.00/M input · 59.9 intel
gpt-5.6-sol
$5.00/M input · 58.9 intel
kimi-k3
$3.00/M input · 57.1 intel
claude-opus-4.8
$5.00/M input · 55.7 intel
claude-opus-4.8:batch
$2.50/M input · 55.7 intel
Smarter alternatives
Open-source alternatives
Frequently asked
What is the best alternative to Claude Fable 5?
GPT-5.6 Sol is the closest alternative to Claude Fable 5, with an Intelligence Index of 58.9 (Claude Fable 5 scores 59.9) at $5.00 per million input tokens.
Is there a cheaper alternative to Claude Fable 5?
Yes — Claude Opus 5 costs $5.00 per million input tokens versus $10.00 for Claude Fable 5, while staying within ~8 points of its Intelligence Index.
Is there an open-source alternative to Claude Fable 5?
Kimi K3 is the strongest open-weight alternative to Claude Fable 5 — downloadable from Hugging Face and self-hostable, scoring 57.1 on intelligence.