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[ARTICLE · art-129628] src=trackllm.net ↗ pub= topic=ai-products verified=true sentiment=· neutral

google/gemini-3.1-pro-preview @ google-ai-studio/flex: B3IT change (TV 0.28)

OpenRouter's tracking of the google/gemini-3.1-pro-preview endpoint on google-ai-studio/flex recorded a B3IT total-variation shift of 0.28, with no logprob tracking possible because the endpoint does not return logprobs. The endpoint is actively monitored through its border inputs, and OpenRouter has billed $2.87 total since 2026-07-18, including $1.72 over the last 30 days across 75,571 queries. No detected changes with level shifts are listed in the tracking data.

read1 min views14 publishedSep 5, 2026

Tracking status #

LT

no logprobs— This endpoint does not return logprobs, so logprob tracking is impossible. B3IT

monitoring— This endpoint is actively monitored through its border inputs.

Drift from baseline #

Both signals measure how far this endpoint's behavior has moved from its reference period. LT tracks the average change in the returned tokens' log-probabilities (nats); B3IT tracks the total-variation distance of the border-input votes (0–1). Both should ideally be as close to 0 as possible. Dashed lines mark published changes, labeled with the level shift across them: for LT the mean drift over the 7 days after minus the 7 days before; for B3IT the total-variation shift its detector measured.

Hover a day on either lane, a change mark or an epoch line to read the data behind it.

Detected changes #

| Date | Method | Level shift |

|---|---|---|

Spend #

what OpenRouter billed for tracking this endpoint. Spend recorded since 2026-07-18 Total to date

$2.87

Last 30 days

$1.72

Queries

75,571

- B3IT (onboarding)$2.6893%
- B3IT (monitoring)$0.197%
  • Vetting$0.0017<1%

Vetting is the one-off probe that checks the endpoint's billed cost against its advertised price.

**B3IT (onboarding)** is the initial border-input search;

**B3IT (monitoring)** and

LT are the recurring daily checks.

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