API PRICES
Google · gemini-3.1-pro-preview
Tiered prices, cheapest first
Price ranges per million tokens
Official cash prices · Lowest 4.5 · median 6 · highest 7.5 · 2 quotes USD / per million tokens
Inference provider cash prices · Lowest 4.5 · median 4.5 · highest 4.5 · 1 quotes USD / per million tokens
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.
| # | Provider | Plan / conditions | Input ↑USD credits / 1M | Output USD credits / 1M | Cache readUSD credits / 1M | BlendedUSD credits / 1M | Details |
|---|---|---|---|---|---|---|---|
| Recent price | |||||||
| 01 | ccoo.aiAsk or discussCollected: Collected this cycle View 3 plans | Google special price [machine translation]Group on site: Google 特惠 Standard tier · base · 2 tiers Google high value-for-money channel, billed at 10% of price [machine translation]Original: Google高性价比通道，享 1 折计费 Operator pending verification | 0.2 | 1.2 | — | 0.45 | Full prices and sources |
| 02 | ccoo.aiAsk or discussCollected: Collected this cycle View 3 plans | Google official [machine translation]Group on site: Google 官方 Standard tier · base · 2 tiers Gemini series, strong in multimodal understanding, complex reasoning, long context and Agent capabilities [machine translation]Original: Gemini 系列、多模态理解、复杂推理、长上下文与 Agent 能力突出 Operator pending verification | 1.6 | 9.6 | — | 3.6 | Full prices and sources |
| 03 | ccoo.aiAsk or discussCollected: Collected this cycle View 3 plans | Google official (sx) [machine translation]Group on site: Google 官方（sx） Standard tier · base · 2 tiers Shuyan Zhineng Google exclusive group [machine translation]Original: 数眼智能Google专属分组 Operator pending verification | 2 | 12 | — | 4.5 | Full prices and sources |
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
Related variants · 2 rows · not ranked
These are special editions of the model (thinking, max, search, batch, long context, free, etc.). They are priced differently from the base model, so they are listed separately and not ranked. Names that only add an effort level such as low, high or nothinking are compared with the base model.
- gemini-3.1-pro-preview-thinking (-thinking · thinking edition): 2 rows
- api.bianxie.ai · default · gemini-3.1-pro-preview-thinking · Input 2 / Output 12 USD credits / 1M
- cnapi.kksj.org · gemini稳定 · gemini-3.1-pro-preview-thinking · Input 6 / Output 36 USD credits / 1M
How this ranking works
All tiered prices: 32,301 prices from 636 sites (about 556 companies). 30,366 are ranked, from 631 sites (about 551 companies); 1,935 more are listed separately and not ranked. Prices collected up to 2026-10-24.
This model has 398 tiered prices; 334 can be compared directly (308 ranked, 26 listed separately). Not comparable yet: display unit not confirmed 29, rule billed per request · compared separately 19, new price under review; showing the previous one 12, formula-based rule pricing 4
3 recent · 0 stale (older than 10 days, or not updated by this refresh) · 0 unverified timestamps. Minimum and median only count recent paid prices; older prices stay in the table. 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.
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for Google · gemini-3.1-pro-preview?
No valid quotes within 10 days. Older quotes are listed as reference prices.
What is the official price for Google · gemini-3.1-pro-preview?
Input 2, output 12 USD per million tokens, checked 2026-10-24. Lowest inference provider: OpenRouter, input 2, output 12 USD per million tokens.
How do I use Google · gemini-3.1-pro-preview in Claude Code or Codex?
Install Grandet Skill, then say "Connect the cheapest Google · gemini-3.1-pro-preview API to Claude Code for me". Install Skill →