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Model board / Gemini 3.1 Pro (preview)

Gemini 3.1 Pro (preview)

latest Google · Gemini

Verified 2026-10-15 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

Input
$2.00
Cached input
$0.2
Cache write
—
Output
$12.00
Context window
1,048,576
Max output
65,536
Weights
closed
Caching
both

Above a 200K-token prompt the rate steps to $4.00 in / $0.40 cached / $18.00 out. Cache storage $4.50 per 1M/hr — the most expensive storage rate on this board

stated on the model's own page, which gives the exact figure rather than "1M"

explicit caches also bill storage per hour

Watch out

Doubles per token above 200K input; preview models carry extra rate-limit restrictions

What we would use it for

Documents, video and very large prompts

What this has cost, week by week

Output price at each refresh since 2026-07-30. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

07-30 $12.00→08-06 $12.00→08-14 $12.00→08-20 $12.00→08-27 $12.00→09-03 $12.00→09-10 $12.00→09-17 $12.00→09-24 $12.00→10-01 $12.00→10-08 $12.00→10-15 $12.00
newly stated2026-09-24 · window, max_output — 1,048,576 / 65,536 from Google's per-model page, newly cited.

Where these numbers came from

No number on this page was written that was not read from one of those pages on 2026-10-15. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

The rest of the board

This row sits alongside 69 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.