API PRICES
gemini-3.1-pro-preview
Provider prices, cheapest first
gemini-3.1-pro-preview official price: not yet recorded. 187 sites have comparable prices; 187 sites list this model.
Official prices are the vendor's cash prices. Inference providers also list cash prices and can be compared directly. Relays list prices in site credit; what you actually pay depends on each site's top-up rate, so they cannot be compared with official prices directly.
Unit: USD credits per 1M tokens. These are site-credit prices; actual cost depends on each site’s top-up rate.
Showing: Special groups。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. Back to the default ranking
Price range: lowest — · median — · highest — (0 quotes, USD credits per million total tokens)
Relays
Prices below are in site credit, not cash.
| # | Provider | Plan / conditions | Input ↑USD credits / 1M | Output USD credits / 1M | Cache readUSD credits / 1M | BlendedUSD credits / 1M | Details |
|---|---|---|---|---|---|---|---|
| Special groups · not ranked · Recent price | |||||||
| — | test-api.apiqik.onlineAsk or discussCollected: Collected this cycle View 2 plans | vertex/sp/gemini Name on site: gemini-3.1-pro-preview vertex/sp/gemini Group notes: test or debug group Operator pending verification | 0.68 | 4.08 | 0.068 | 1.53 | Full prices and sources |
| — | test-api.apiqik.onlineAsk or discussCollected: Collected this cycle View 2 plans | gemini Name on site: gemini-3.1-pro-preview gemini Group notes: test or debug group Operator pending verification | 1 | 6 | 0.1 | 2.25 | Full prices and sources |
| — | api.mooko.aiAsk or discussCollected: Collected this cycle View 1 plans | default Name on site: gemini-3.1-pro-preview 站点写明：仅限生图 Default group, image generation group [machine translation]Original: 默认分组、生图分组 Group notes: unrecognized flag USAGE_IMAGE_ONLY Operator pending verification | 2 | 12 | 0.02 | 4.5 | Full prices and sources |
| Special groups · not ranked · Flagged · not ranked · Recent price | |||||||
| — | poloai.topAsk or discussCollected: Collected this cycle View 1 plans 2 more sites of the same companyBasis: identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | Gemini-1 Name on site: gemini-3.1-pro-preview 站点写明：仅限受邀用户 gemini resources, do not select unless invited [machine translation]Original: gemini资源，非邀勿选 Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: top-up or membership gated Operator pending verification | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | poloapi.topAsk or discussCollected: Collected this cycle View 1 plans 2 more sites of the same company
Basis: identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | Gemini-1 Name on site: gemini-3.1-pro-preview 站点写明：仅限受邀用户 gemini resources, do not select unless invited [machine translation]Original: gemini资源，非邀勿选 Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: top-up or membership gated Operator pending verification | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | xy.poloapi.comAsk or discussCollected: Collected this cycle View 1 plans 2 more sites of the same company
Basis: identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | Gemini-1 Name on site: gemini-3.1-pro-preview 站点写明：仅限受邀用户 gemini resources, do not select unless invited [machine translation]Original: gemini资源，非邀勿选 Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: top-up or membership gated Operator pending verification | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
How this ranking works
All per-token prices: 97,455 prices from 871 sites (about 765 companies). 89,631 are ranked, from 861 sites (about 755 companies); 7,824 more are listed separately and not ranked. Prices collected up to 2026-10-17.
This model has 1044 recorded prices; 365 can be compared directly (359 ranked, 6 listed separately). Not comparable yet: tiered by rules (see Tiered prices) 317, price not parsed yet 286, billed per request or another unit 30, display unit not confirmed 20, scope of the official doc price not confirmed 12, ratio looks unset 9
6 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-valued pairs are separately unverified, without proof of free eligibility. Timing does not verify payment, upstream identity or quality.
Prices are converted to site credits using each site’s published ratio. What you actually pay depends on its top-up rate. Input, output and cache prices in each row come from the same plan. 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.
“Self-declared unofficial channel” means the plan name itself says “reverse-engineered” or similar. We have not verified their source or quality. Minimum and median only count regular plans.
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for gemini-3.1-pro-preview?
No valid quotes within 10 days. Older quotes are listed as reference 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 →