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Pyyan / Compare / ERNIE 5.1 vs Claude Fable 5

ERNIE 5.1 vs Claude Fable 5

2 of 5

Language Models · verified 13 Aug 2026

ERNIE 5.1Baiducurrent
Claude Fable 5Anthropiccurrent
3 slots left
SpecificationERNIE 5.1Claude Fable 5
SummaryBaidu's closed frontier tier.Most capable widely released model, for the hardest reasoning and long-horizon agentic work.
Context—1M
Input ($/Mtok)—$10
Output ($/Mtok)—$50
LicenceProprietaryProprietary
Max output—128K
Released8 May 2026—
Model ID—claude-fable-5
CategoryLanguage ModelsLanguage Models
OfficialBaidu ↗Anthropic ↗

Highlighted rows are where these differ.

ERNIE 5.1

  • ERNIE 4.5 is open; 5.x is API-only

Best for Chinese enterprise.

Full spec sheet →

Claude Fable 5

  • Thinking is always on — the `thinking` param is rejected
  • Raw chain of thought is never returned
  • Requires 30-day data retention; unavailable under ZDR

Best for the hardest problems.

Full spec sheet →