API PRICES
Google · gemini-3.1-pro-preview
Provider prices, cheapest first
Google · gemini-3.1-pro-preview official price: input 2.00, output 12.00 USD per million tokens (Google, observed 2026-10-16). Cheapest inference provider: OpenRouter, input 2, output 12 USD per million tokens. Relays have only older quotes; the lowest is poloapi.top, group "Gemini-1" 4.5 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-10). 222 sites have comparable prices; 526 sites list this model.Relay blended price uses 75% input and 25% output.
Official price
| Provider | Input | Output | Cache read | Cache write | Unit | Observed | Conditions and source |
|---|---|---|---|---|---|---|---|
| 2.00 | 12.00 | 0.20 | — | USD / 1M tokens | Official source | ||
| 4.00 | 18.00 | 0.40 | — | USD / 1M tokens | Official source |
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.
Inference providers
| Provider | Input | Output | Cache read | Cache write | Unit | Observed | Conditions and source | vs official |
|---|---|---|---|---|---|---|---|---|
| OpenRouter · Aggregator | 2 | 12 | 0.2 | 0.375 | USD / 1M tokens | Official source |
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
Searching…
Browse all providersRelays
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 · Flagged · not ranked · Older price | |||||||
| — | hk.apitoken.aiAsk or discussCollected: View 4 plans | sandbox Name on site: gemini-3.1-pro-preview-thinking-medium sandbox Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | — | 4.5 | Full prices and sources |
| — | hk.apitoken.aiAsk or discussCollected: View 4 plans | sandbox sandbox Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | — | 4.5 | Full prices and sources |
| — | hk.apitoken.aiAsk or discussCollected: View 4 plans | sandbox Name on site: gemini-3.1-pro-preview-thinking-low sandbox Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | — | 4.5 | Full prices and sources |
| — | hk.apitoken.aiAsk or discussCollected: View 4 plans | sandbox Name on site: gemini-3.1-pro-preview-thinking-high sandbox Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | — | 4.5 | Full prices and sources |
| — | poloai.topAsk or discussCollected: 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 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 | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | tenzen.aiAsk or discussCollected: View 1 plans 1 more site of the same companyBasis: identical homepage assets, identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | Test group [machine translation]Group on site: 测试分组 Test group [machine translation]Original: 测试分组 Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | api.tenzen.aiAsk or discussCollected: View 1 plans 1 more site of the same company
Basis: identical homepage assets, identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | Test group [machine translation]Group on site: 测试分组 Test group [machine translation]Original: 测试分组 Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | poloapi.topAsk or discussCollected: 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 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 | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | xy.poloapi.comAsk or discussCollected: 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 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 | 2 | 12 | 0.2 | 4.5 | Full prices and sources |
| — | www.amutes.comAsk or discussCollected: View 2 plans | vertex-test Name on site: gemini-3.1-pro-preview-medium vertex-test Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 3.4 | 20.4 | — | 7.65 | Full prices and sources |
| — | www.amutes.comAsk or discussCollected: View 2 plans | vertex-test Name on site: gemini-3.1-pro-preview-high vertex-test Note: unrecognized flag GROUP_FLAGGED. This price is not ranked or counted. Group notes: test or debug group | 3.4 | 20.4 | 0.34 | 7.65 | Full prices and sources |
How this ranking works
All per-token prices: 96,427 prices from 839 sites (about 733 companies). 88,950 are ranked, from 826 sites (about 720 companies); 7,477 more are listed separately and not ranked. Prices collected up to 2026-10-10.
This model has 2466 recorded prices; 705 can be compared directly (509 ranked, 196 listed separately). Not comparable yet: price not parsed yet 475, billed per request or another unit 434, tiered by rules (see Tiered prices) 355, new price under review; showing the previous one 312, ratio looks unset 71, display unit not confirmed 66, scope of the official doc price not confirmed 48
0 recent · 11 stale (older than 7 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.