Skip to content
SOLVENCY

Head to head

Gemini 3.1 Pro (preview) vs DeepSeek V4 Flash

Gemini 3.1 Pro (preview): currentDeepSeek V4 Flash: currentheavy tier

No verdict

One cost is measured by its benchmark and the other is modelled by Solvency. The two bases are never ranked against each other, so no verdict is given here.

Source: Scale SEAL leaderboard, SWE-bench Pro · verified 2026-08-21 · prices from each provider's pricing page

Input $/M tokens

lower is better

  • Gemini 3.1 Pro (preview)$2
  • DeepSeek V4 Flash$0.44

Output $/M tokens

lower is better

  • Gemini 3.1 Pro (preview)$12
  • DeepSeek V4 Flash$1.32

Cost per solved task

different bases — not comparable

  • Gemini 3.1 Pro (preview)$4.30
  • DeepSeek V4 Flash$0.12
Gemini 3.1 Pro (preview)DeepSeek V4 Flash
Input $/Mtok$2$0.44
Output $/Mtok$12$1.32
Cached input $/Mtok$0.2$0.014
Pass rate46%50%
Pass rate sourceSEALAA
Cost basismodelledmeasured
Cost per solved task$4.30$0.12

verified 2026-08-21 · heavy task tier; measured rows ignore the tier· Methodology· Gemini 3.1 Pro (preview)· DeepSeek V4 Flash