API PRICES

gemini-3.1-pro-preview

Tiered prices, cheapest first

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Price ranges per million tokens

Relay USD credit prices · Lowest 1.575 · median 5.2875 · highest 9 · 2 quotes USD / per million tokens, site credit

Uses the standard tier (shortest context, base price). Full rules are in Details.

Unit: USD credits per 1M tokens. These are site-credit prices; actual cost depends on each site’s top-up rate.

Filtering by provider: api.cloudpass.space

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sites have comparable prices187187 sites list this model; approximately 0 operators on this board
Lowest input price—USD credits / 1M
Median of each provider’s lowest price—USD credits / 1M

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Special groups · 4 rows · not ranked

These plans are marked as test, internal, disabled, gated by top-up or membership, or have a near-zero ratio. They may not be purchasable or stable, so they are listed separately and left out of the ranking and statistics.

  • test or debug group: 2 rows
  • marked display-only or do-not-select: 1 rows
  • near-zero-ratio group: 1 rows
  • ai.saigou.work · gemini · gemini-3.1-pro-preview · Input 0.02 / Output 0.12 USD credits / 1M
  • api.rootflowai.com · Gemini Temp · gemini-3.1-pro-preview · Input 1.6 / Output 9.6 USD credits / 1M
  • www.amutes.com · vertex-test · gemini-3.1-pro-preview · Input 3.4 / Output 20.4 USD credits / 1M
  • openp.ai · test · gemini-3.1-pro-preview · Input 4 / Output 24 USD credits / 1M
View all 4 rows →
How this ranking works

All tiered prices: 30,485 prices from 636 sites (about 555 companies). 28,608 are ranked, from 629 sites (about 548 companies); 1,877 more are listed separately and not ranked. Prices collected up to 2026-10-17.

This model has 317 tiered prices; 281 can be compared directly (277 ranked, 4 listed separately). Not comparable yet: display unit not confirmed 32, formula-based rule pricing 4

0 recent · 0 stale (older than 10 days, or not updated by this refresh) · 0 unverified timestamps. No recent prices to summarize in this group. 0 zero values are separately unverified, without proof of free eligibility.

For tiered models (e.g. longer context costs more) we use the standard tier: shortest context, normal service tier, base price without promotions. Prices that change with time of day or request options are listed separately with the reason. See “Details” for the full rules.

Prices are converted to site credits using each site’s published ratio and display multiplier. What you actually pay depends on its top-up rate. Several sites run by the same company take one place in the ranking: its cheapest plan, with the other sites listed under it. We judge “same company” by identical prices, status pages or homepage code; this is not a legal finding. To see every site’s prices, choose “All plans” or filter by provider.

Full methodology →

FAQ

Which API is cheapest for gemini-3.1-pro-preview?

api.cloudpass.space, group "Gemini", 1.575 USD credit per million total tokens, observed 2026-10-16. 187 sites have comparable prices.

How do I use gemini-3.1-pro-preview in Claude Code or Codex?

Install Grandet Skill, then say "Connect the cheapest gemini-3.1-pro-preview API to Claude Code for me". Install Skill →