Google: Gemini 3.7 Flash

Right now, this row costs exactly what its predecessor does. It lists at $0.75per million tokensopenrouter-models, last checked 2026-09-14 input, identical to google/gemini-3.6-flash's own $0.75per million tokensopenrouter-models, last checked 2026-09-14 — not a coincidence but an introductory rate. Google's launch post dates the window plainly: 2026-12-31; regular pricing is double the introductory rate on input and outputsource, accessed 2026-08-28.

Everything else about the row is already ahead of 3.6 at that matched price. The intelligence index moved from 34.3openrouter-models, last checked 2026-09-14 to 39.4openrouter-models, last checked 2026-09-14, and on the two benchmarks the launch post leans on hardest, the same document reports DeepSWE at 65.3%, against 49.0% for the preceding Flash releasesource, accessed 2026-08-28 and FrontierCode at 43.6%, against 34.4% for the preceding Flash releasesource, accessed 2026-08-28 — both already stated against the 3.6 baseline, not left for a reader to compute.

None of that gap costs anything until the calendar turns. On 1 January 2027 the shared price stops being shared: 3.7 Flash becomes the pricier of the two Flash rows, for work that was already scoring higher on 3.7 while the invoice read the same. A comparison shopper pricing these two rows today by their listed rate alone is pricing a discount that has an expiry date, not a permanent position in the lineup.