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: 1yapi.com, group "gemini" 0.225 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 0.225 · median 0.225 · highest 0.225 · 1 quotes USD / 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 0.225 · median 0.225 · highest 0.225 (1 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 | |||||||
| 01 | 1yapi.comAsk or discussCollected: Collected this cycle View 1 plans | gemini flash · fast, one project in 5 minutes [machine translation]Original: flash · 快 5分钟一个项目 Operator pending verification | 0.1 | 0.6 | — | 0.225Median price ÷ this price: 1× | 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
1 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.
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for Google · gemini-3.1-flash-image?
1yapi.com, group "gemini", 0.225 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 →