{"slug": "google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28", "title": "google/gemini-3.1-pro-preview @ google-ai-studio/flex: B3IT change (TV 0.28)", "summary": "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.", "body_md": "## Tracking status\n\nLT\n\n**no logprobs**— This endpoint does not return logprobs, so logprob tracking is impossible.\nB3IT\n\n**monitoring**— This endpoint is actively monitored through its border inputs.\n## Drift from baseline\n\nBoth 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.\n\nHover a day on either lane, a change mark or an epoch line to read the data behind it.\n\n## Detected changes\n\n| Date | Method | Level shift | \n|---|---|---|\n\n## Spend\n\nwhat OpenRouter billed for tracking this endpoint. Spend recorded since 2026-07-18\nTotal to date\n\n$2.87\n\nLast 30 days\n\n$1.72\n\nQueries\n\n75,571\n\n- B3IT (onboarding)$2.6893%\n- B3IT (monitoring)$0.197%\n- Vetting$0.0017<1%\n\n**Vetting** is the one-off probe that checks the endpoint's billed cost against its advertised price.\n\n**B3IT (onboarding)** is the initial border-input search;\n\n**B3IT (monitoring)** and\n\n**LT** are the recurring daily checks.", "url": "https://wpnews.pro/news/google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28", "canonical_source": "https://www.trackllm.net/endpoints/google2fgemini-3.1-pro-preview23google-ai-studio2fflex.html", "published_at": "2026-09-05 22:29:09+00:00", "updated_at": "2026-09-14 23:08:27.228822+00:00", "lang": "en", "topics": ["ai-products", "ai-infrastructure"], "entities": ["OpenRouter", "Google", "Gemini 3.1 Pro Preview", "Google AI Studio"], "alternates": {"html": "https://wpnews.pro/news/google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28", "markdown": "https://wpnews.pro/news/google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28.md", "text": "https://wpnews.pro/news/google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28.txt", "jsonld": "https://wpnews.pro/news/google-gemini-3-1-pro-preview-google-ai-studio-flex-b3it-change-tv-0-28.jsonld"}}