API PRICES
Google · gemini-3.1-flash-image
Provider prices, cheapest first
Google · gemini-3.1-flash-image official price: not yet recorded. Cheapest inference provider: OpenRouter, input 0.5, output 3 USD per million tokens. Cheapest relay: token123.cfd, group "gemini group [machine translation] (on site: gemini分组)" 0.16875 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-16). 57 sites have comparable prices; 309 sites list this model.Relay blended price uses 75% input and 25% output.
Price ranges per million tokens
Inference provider cash prices · Lowest 1.125 · median 1.125 · highest 1.125 · 1 quotes USD / per million tokens
Relay USD credit prices · Lowest 0.16875 · median 15.375 · highest 61.5 · 35 quotes USD / per million tokens, site credit
Relay CNY credit prices · Lowest 3.075 · median 23.063 · highest 115.94 · 11 quotes CNY / per million tokens, site credit
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 |
|---|---|---|---|---|---|---|---|
| OpenRouter · Aggregator | 0.5 | 3 | — | — | 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.
Price range: lowest 0.16875 · median 15.375 · highest 61.5 (35 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 |
|---|---|---|---|---|---|---|---|
| Recent price | |||||||
| 25 | zen-ai.topAsk or discussCollected: Collected this cycle View 1 plans | Premium-quality gemini [machine translation]Group on site: 优质gemini High-availability gemini, 2 yuan per 1 dao (US dollar) [machine translation]Original: 高可用gemini, 2元1刀 Operator pending verification | 1 | 120 | — | 30.75Median price ÷ this price: 0.5× | Full prices and sources |
| 27 | code0.aiAsk or discussCollected: Collected this cycle View 1 plans | Gemini VertexAI AIstudio original-vendor API, not dumbed down, slightly lower concurrency [machine translation]Original: VertexAI AIstudio原厂接口不降智，并发略低 Operator pending verification | 1.25 | 150 | — | 38.438Median price ÷ this price: 0.4× | Full prices and sources |
| 28 | chatfire.cnAsk or discussCollected: Collected this cycle View 1 plans | global Some international models [machine translation]Original: 部分国际模型 Operator pending verification | 1.5 | 180 | — | 46.125Median price ÷ this price: 0.3× | Full prices and sources |
| 28 | cnapi.kksj.orgAsk or discussCollected: Collected this cycle View 1 plans | gemini stable [machine translation]Group on site: gemini稳定 gemini group with more concurrency [machine translation]Original: 更多并发的gemini分组 Operator pending verification | 1.5 | 180 | — | 46.125Median price ÷ this price: 0.3× | Full prices and sources |
| 28 | www.nuwaflux.comAsk or discussCollected: Collected this cycle View 2 plans | Gemini - high-speed dedicated line [machine translation]Group on site: Gemini-高速专线 as+vertex Operator pending verification | 1.5 | 180 | — | 46.125Median price ÷ this price: 0.3× | Full prices and sources |
| 31 | ogog.aiAsk or discussCollected: Collected this cycle View 2 plans | Gemini Gemini Operator pending verification | 1.65 | 198 | — | 50.738Median price ÷ this price: 0.3× | Full prices and sources |
| 32 | api.zhiyunai168.comAsk or discussCollected: Collected this cycle 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. | gemini official relay premium [machine translation]Group on site: gemini 官转高级 gemini official relay t3t5key pool, supports high concurrency, stable enterprise use [machine translation]Original: gemini 官转 t3t5key池，支持高并发，企业稳定使用 Operator pending verification | 1.75 | 210 | — | 53.813Median price ÷ this price: 0.3× | Full prices and sources |
| 33 | ai.ufoai.onlineAsk or discussCollected: Collected this cycle View 2 plans | Gemini[high quality] [machine translation]Group on site: Gemini[高质] Gemini [high quality], 71% cheaper than official [machine translation]Original: Gemini[高质]，比官方便宜71% Operator pending verification | 2 | 240 | 0.2 | 61.5Median price ÷ this price: 0.3× | Full prices and sources |
| 34 | dltokenapi.comAsk or discussCollected: Collected this cycle View 1 plans | Antigravity Gemini [machine translation]Group on site: 反重力Gemini Has the latest gemini3.5 [machine translation]Original: 有最新得gemini3.5 Operator pending verification | 3.75 | 22.5 | 0.375 | 8.4375Median price ÷ this price: 1.8× | Full prices and sources |
| 35 | aizhongzhuan.comAsk or discussCollected: Collected this cycle View 1 plans | Banana image generation [machine translation]Group on site: 香蕉生图 For Banana image generation [machine translation]Original: 香蕉生图用 Operator pending verification | 4.5 | 27 | 0.45 | 10.125Median price ÷ this price: 1.5× | Full prices and sources |
| Flagged · not ranked · Recent price | |||||||
| — | constreet.ccAsk or discussCollected: Collected this cycle 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. | Gemini T3/T1 pool [machine translation]Group on site: Gemini T3/T1池 [Gemini-T3/T1 account pool] image generation + text; when resources run short, just retry/switch models [machine translation]Original: 【Gemini-T3/T1号池】可生图+文本，资源不足时直接重试/切换模型 Note: far from other providers’ prices. This price is not ranked or counted. Operator pending verification | 20 | 60 | — | 30Median price ÷ this price: 0.5× | Full prices and sources |
| — | api.constreet.ccAsk or discussCollected: Collected this cycle 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. | Gemini T3/T1 pool [machine translation]Group on site: Gemini T3/T1池 [Gemini-T3/T1 account pool] image generation + text; when resources run short, just retry/switch models [machine translation]Original: 【Gemini-T3/T1号池】可生图+文本，资源不足时直接重试/切换模型 Note: far from other providers’ prices. This price is not ranked or counted. Operator pending verification | 20 | 60 | — | 30Median price ÷ this price: 0.5× | 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 660 recorded prices; 130 can be compared directly. Not comparable yet: billed per request or another unit 201, price not parsed yet 187, tiered by rules (see Tiered prices) 91, ratio looks unset 30, scope of the official doc price not confirmed 12, display unit not confirmed 6
109 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-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.
Switch model
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for Google · gemini-3.1-flash-image?
token123.cfd, group "gemini分组 (gemini group)", 0.16875 USD credit per million total tokens, observed 2026-10-16. 57 sites have comparable prices.
How do I use Google · gemini-3.1-flash-image in Claude Code or Codex?
Install Grandet Skill, then say "Connect the cheapest Google · gemini-3.1-flash-image API to Claude Code for me". Install Skill →