Gemini 3.1 Pro (preview) API Pricing

Google — current verified pricing, stamped 2026-08-06.

Input per 1M tokens$2
Output per 1M tokens$12
Cache read per 1M tokens
Statusactive
Sourceofficial pricing page · verified 2026-08-06

Prompts >200k tokens: $4 in / $18 out.

Example costs

  • One request (2,000 in / 500 out): $0.0100
  • 100K such requests/month: $1,000
  • 1M input + 1M output tokens: $14

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