Gemini 4 Argon standard pricing doubles on December 1, 2026: input goes from $2.00 to $4.00 and output from $10.00 to $20.00 per million tokens, per Google.
In our model one agent session costs $0.63 now and $1.26 after, and $1.60 then $3.20 if the cache misses.
Argon costs the same as Claude Sonnet 5.5 today and the same as Claude Opus 5.5 from December 1, and Batch or Flex after the rise cost what Standard costs now.