Which is cheaper, Gemini 3 1 Pro Preview or Gemini 3.5 Flash?
Gemini 3.5 Flash costs $1.5/M input; Gemini 3 1 Pro Preview costs $2/M input. Price spread matters at billion-token scale.
Gateway catalog snapshot.
Gemini 3.5 Flash is cheaper at $1.5/M input vs $2/M input for Gemini 3 1 Pro Preview. Compare context, hosts, and o10 routing bands.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Gemini 3 1 Pro Preview vs Gemini 3.5 Flash. Price, context, routing
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AnswersSelf-contained
How do Gemini 3 1 Pro Preview and Gemini 3.5 Flash context windows compare?
Gemini 3 1 Pro Preview: 1,000,000 tokens. Gemini 3.5 Flash: 1,000,000 tokens.
01Deep dive
Comparison summary
Gemini 3.5 Flash is cheaper at $1.5/M input vs $2/M input for Gemini 3 1 Pro Preview. Compare context, hosts, and o10 routing bands.
Gemini 3.5 Flash is cheaper at $1.5/M input vs $2/M input for Gemini 3 1 Pro Preview. Compare context, hosts, and o10 routing bands.
SourceMethodology
o10 gateway + fulfillment catalog snapshot.
FAQFrequently asked questions
Common questions
Which is cheaper, Gemini 3 1 Pro Preview or Gemini 3.5 Flash?
Gemini 3.5 Flash at $1.5/M input vs $2/M for Gemini 3 1 Pro Preview.
Can you run both on the same hosts?
Gemini 3 1 Pro Preview: Google Gemini. Gemini 3.5 Flash: Google Gemini.