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Gemini 3.1 Pro (preview)

current · frontier · modelled cost · verified 2026-08-21

List price · USD per million tokens

Input

$2

Output

$12

Cached input

$0.2

Context

missing

Provider pricing page · verified 2026-08-21

Cost per solved task · by task tier

light

$0.12

moderate

$1.91

heavy

$4.30

Source: Scale SEAL leaderboard, SWE-bench Pro · verified 2026-08-21 · modelled basis: pass rate published, cost from Solvency's loop model at current prices

PROMPT-LENGTH TIERED. Rates shown apply to prompts <= 200k tokens. Above 200k: $4.00 in / $18.00 out / $0.40 cache. All Solvency task tiers stay under 200k, so the low tier is the correct one. Context window not stated on the pricing page.

Benchmark rows

Where the pass rate comes from

Every row that names this model, with its harness and cost basis. Rows are harness + model combinations, not properties of the bare model.

Benchmark rows naming Gemini 3.1 Pro (preview): benchmark, entry, pass rate, measured cost per task, cost basis and run date
BenchmarkEntryPass$ / taskBasisRun / read
Scale SEAL leaderboard - SWE-bench Pro (public)gemini-3.1-pro (thinking)46.1%not publishedmodelled by solvency2026-08-21

modelled peers

Cost per solved task against its peers

Modelled rows only, heavy tier, 200 tasks a month. Lower is better. These are Solvency estimates, not observed costs.

modelled · pass rate published; cost is Solvency's loop model at verified prices

MODELLED: cost per solved task, ranked4 modelled rows ranked cheapest first. 1 GPT-5.4 $4.19; 2 Gemini 3.1 Pro (preview) $4.30; 3 Claude Opus 4.6 $8.67; 4 Claude Opus 4.5 $9.81. Monthly figures at 200 tasks.pass rate 59%GPT-5.4$4.19vs ›$838/mopass rate 46%Gemini 3.1 Pro (preview)$4.30$859/mopass rate 52%Claude Opus 4.6$8.67vs ›$1.7k/mopass rate 46%Claude Opus 4.5$9.81vs ›$2.0k/mo

Source: Scale SEAL leaderboard, SWE-bench Pro · verified 2026-08-21

Compare

Head to head

Side-by-side pricing and cost per solved task with another current model.