Claude Fable 5 vs GPT-5
Compare Claude Fable 5 by Anthropic against GPT-5 by OpenAI, context windows of 1.0M vs 400K, tested across 51 shared challenges. Updated June 2026.
Which is better, Claude Fable 5 or GPT-5?
Claude Fable 5 and GPT-5 are both competitive models. Claude Fable 5 costs $10/M input tokens vs $1.25/M for GPT-5. Context windows: 1000K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Fable 5 and GPT-5
Claude Fable 5 is made by anthropic while GPT-5 is from openai. Claude Fable 5 has a 1000K token context window compared to GPT-5's 400K. On pricing, Claude Fable 5 costs $10/M input tokens vs $1.25/M for GPT-5.
Per 1M tokens
GPT-5 is cheaper on both — 8.0× input, 5.0× output
No community votes yet. On paper, Claude Fable 5 has the edge — newer, bigger context window.
GPT-5 is 5.0x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Fable 5 uses 58.2x more emoji
