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Pyyan / Compare / Gemini 4 Argon vs Claude Fable 5

Gemini 4 Argon vs Claude Fable 5

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Language Models · verified 20 Oct 2026

Gemini 4 ArgonGooglecurrent
Claude Fable 5Anthropiccurrent
3 slots left
SpecificationGemini 4 ArgonClaude Fable 5
SummaryFirst on one independent board, fifth on another, and cheap until December.Most capable widely released model, for the hardest reasoning and long-horizon agentic work.
Context1M1M
Input ($/Mtok)$2$10
Output ($/Mtok)$10$50
LicenceProprietaryProprietary
Max output262K128K
ParametersNot published—
Released30 Sep 2026, GA 13 Oct—
Model IDgemini-4-argonclaude-fable-5
CategoryLanguage ModelsLanguage Models
OfficialGoogle ↗Anthropic ↗

Highlighted rows are where these differ.

Gemini 4 Argon

  • The price doubles to $4 and $20 on 1 December, and cached input is discounted 95%
  • First of 41 on the Vals Index at 68.90%, but 52.6 on Artificial Analysis against 57.6 for Opus 5.5
  • 77.9 on DeepSWE v1.1 in Google's table, and 55.0 on FrontierSWE v2 where GPT-6 Astra scores 65.5

Best for frontier work while the introductory rate lasts.

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 →