Kingy.ai Price History Library · evidence observed through August 2, 2026
Gemini 3.1 Flash Image Preview text-input price history tracks input list pricing for gemini-3.1-flash-image-preview. It publishes 1 editorially verified episode while preserving the broader machine timeline as a separate evidence layer.
Identity and scope
The exact preview API ID is gemini-3.1-flash-image-preview. This component is text input priced per million tokens; image output is a separate resolution-dependent charge and is not part of this series.
Editorially verified change
This is the only verified increase in the retained editorial ledger. The pricing table doubled the text-input figure in a sub-day archive bracket, but the page does not infer a billing-effective timestamp or apply the change to image-output pricing.
| Old price last seen | Old | New price first seen | New | Verification |
|---|---|---|---|---|
| March 2, 2026 last old-price capture |
$0.25 | March 3, 2026 first new-price capture |
$0.5 | 100% increase; the claim is limited to the published pricing table and this exact preview ID. |
Machine-detected state timeline
The rows below come from the scope-safe machine series. A changed value is not automatically an editorial change. Only rows tied to the verified brackets above support the page’s change claim; the others remain observations or held transitions.
| State | First observed | Value | Editorial status | Lineage |
|---|---|---|---|---|
| 1 | $0.25 USD | machine-only state | archive9292fae178717cf9… |
|
| 2 | $0.5 USD | bounds a verified episode | archive96ee582b7ff53b3f… |
Source and archive lineage
- Current official pricing page.
- Episode 1 before: https://web.archive.org/web/20260302122747/https://ai.google.dev/gemini-api/docs/pricing — capture SHA-256
5e40db02a46c0c3e4f5f5da45275dc520efe9e6dfe4338538174ce80de1dc449. - Episode 1 after: https://web.archive.org/web/20260303075128/https://ai.google.dev/gemini-api/docs/pricing — capture SHA-256
96ee582b7ff53b3fb44083a7ad6dc1dba35c8d55c6f002feff81b33d13e9fc42. - Retained series ID:
google:gemini-3-1-flash-image-preview:input. - Dataset series window: February 26, 2026 to May 27, 2026.
How to use this history
Use the verified row when reconstructing a dated standard-list-price estimate. Use the machine timeline to audit extraction and locate captures, not to infer billing scope or a precise effective timestamp. Recheck the provider’s current documentation before making a live purchasing or architecture decision.