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●FLASH GA — Gemini 3.5 Flash is now generally available, billed as the most intelligent model for sustained frontier performance on agentic and coding tasks●TOGGLE — From Jun 16 the Gemini 3.5 Flash feature toggle is removed in the Global, US, and EU multi-regions, so check any configs that depend on it●AGENTS — Managed Agents launched in public preview, letting developers build and deploy autonomous, stateful agents inside Google-hosted isolated Linux sandboxes●IMAGE — The image preview models gemini-3.1-flash-image-preview and gemini-3-pro-image-preview shut down Jun 25; migrate to their successors●SEARCH — File Search now supports multimodal search, natively embedding and searching images via the gemini-embedding-2 model●CLI — Gemini CLI and Code Assist end individual access on Jun 18; free users and AI Pro/Ultra subscribers are directed to the Antigravity CLI●FLASH GA — Gemini 3.5 Flash is now generally available, billed as the most intelligent model for sustained frontier performance on agentic and coding tasks●TOGGLE — From Jun 16 the Gemini 3.5 Flash feature toggle is removed in the Global, US, and EU multi-regions, so check any configs that depend on it●AGENTS — Managed Agents launched in public preview, letting developers build and deploy autonomous, stateful agents inside Google-hosted isolated Linux sandboxes●IMAGE — The image preview models gemini-3.1-flash-image-preview and gemini-3-pro-image-preview shut down Jun 25; migrate to their successors●SEARCH — File Search now supports multimodal search, natively embedding and searching images via the gemini-embedding-2 model●CLI — Gemini CLI and Code Assist end individual access on Jun 18; free users and AI Pro/Ultra subscribers are directed to the Antigravity CLI
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Model Management

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◈ Gemini API/2026-06-14Advanced

Keeping Gemini API's Default-Model Shift From Becoming an Incident — Pinning Model IDs and Detecting Silent Upgrades in Production

When the default model quietly moves up, your output length, reasoning behavior, and cost change with zero code edits. This guide shows how to pin model IDs in a single source of truth and verify the effective model from the response to detect default changes.