scan-cost

Summary

What one scan costs to serve, measured from the model's own usageMetadata rather than taken from a paper.

Canonical values

Key	Value	Last changed
MODEL	gemini-3.1-flash-lite (production default)	2026-09-19
EVAL.GUESS	$0.00028 per scan	2026-09-19
EVAL.GUESS-PLUS-CLARIFY	$0.00053 per scan	2026-09-19
LIVE.PHOTO-SCAN	1,477 in / 341 out tokens · $0.00088 · $0.88 per 1,000	2026-09
LIVE.CLARIFY	570 in / 347 out tokens · $0.00066 · $0.66 per 1,000	2026-09
LIVE.LATENCY	3.4–4.9 s end to end, 7 scans against the deployed function	2026-09

At the live figure, $10 buys ~11,000 scans. A free user who spends the whole trial costs $0.011; a Plus user at the 100/month cap costs $0.11.

The two sets disagree because they were taken on different models and prompts: the live pair predates the eval's move to gemini-3.1-flash-lite. The harness used to report the group TOTAL under a column headed "cost" — a hundred-fold error in the number the free tier and the price are set from — and now reports per scan.

Related

• plus-subscription — the allowances these costs are set against
• accuracy-findings — why this model

Sources

• packages/eval (first gate run, 2026-09-19)