Gemini 3.1 Pro Preview Custom Tools

google· 2026-02-19· 1.0M ctx

API onlytool callreasoningstructured quant: unknown

spread (output)

1.0×

$12.00 – $12.00 · 10 providers

10 providers priced

Provider	Input	Output	Cache rd	Blended
AIHubMixtiered unknown	$2.00	$12.00	$0.200	$1.76
Databrickstiered relay router	$2.00	$12.00	$0.200	$1.76
Eden AItiered relay router	$2.00	$12.00	$0.200	$1.80
Googletiered first party lab	$2.00	$12.00	$0.200	$1.76
Vertextiered hyperscaler	$2.00	$12.00	$0.200	$1.76
Kilo Gateway relay router	$2.00	$12.00	$0.200	$1.80
Merge Gatewaytiered unknown	$2.00	$12.00	$0.200	$1.76
NanoGPT relay router	$2.00	$12.00	$0.200	$1.80
OpenRoutertiered unknown	$2.00	$12.00	$0.200	$1.80
OrcaRoutertiered relay router	$2.00	$12.00	$0.200	$1.76

Cheapest (output)

AIHubMix

$12.00 /M

opencode.json

{
  "provider": {
    "aihubmix": {
      "npm": "@aihubmix/ai-sdk-provider",
      "models": {
        "gemini-3.1-pro-preview-customtools": {}
      }
    }
  }
}

Set AIHUBMIX_API_KEY in your environment. Generated — verify against the OpenCode docs.

Output $/M over time7-day preview

Median line, min–max band. Pre-2026-09 points are catalog-recorded dates from models.dev git history, not provider effective dates.

Full price history & dynamics

This is a 7-day preview. Sign in for 30 days free; the full series and export are the API subscription.

Data: models.dev (MIT), snapshot 2026-09-20. Prices are vendor-published; verify before purchase. Methodology.