innFactory AI Consulting, based in Rosenheim, Germany, supports enterprises across the DACH region (Germany, Austria, Switzerland) and Europe with GDPR-compliant deployment of Google Gemini. At Google I/O 2026 (19 May 2026), Google launched Gemini 3.5 Flash and announced Gemini 3.5 Pro for June 2026. As of 9 June 2026, Gemini 3.5 Pro is in limited Vertex preview for select enterprise customers, with broad GA still expected in June 2026. Gemini 3.5 Flash outperforms Google’s previous flagship Gemini 3.1 Pro on key coding and agentic benchmarks and delivers, according to Google, around 289 tokens per second – roughly four times faster than comparable frontier models. In parallel, Google introduced Gemini Spark, an agentic 24/7 personal assistant built on Gemini 3.5 and the Antigravity harness.
EU availability of Gemini 3.5 Flash (as of 9 June 2026): Gemini 3.5 Flash is available via the EU multi-region endpoint on Vertex AI / Gemini Enterprise Agent Platform — routing stays inside the EU geography and is covered by the Vertex AI Data Processing Addendum, making the model usable for GDPR-compliant workloads. What is not yet shipped is a single-region endpoint in
europe-west3(Frankfurt) oreurope-west4(Netherlands). For workloads that require strict single-region pinning to a specific EU country, Gemini 2.5 Pro and Gemini 2.0 Flash ineurope-west4remain the path.
Key Strengths
Gemini 3.5 Flash – Agentic-first
With Gemini 3.5 Flash, Google positions its fastest tier above its own Pro flagship for the first time: 3.5 Flash outperforms Gemini 3.1 Pro on Terminal-Bench 2.1 (coding), GDPval-AA Elo (real-world agentic) and MCP Atlas (tool use). The model is built for multi-hour autonomous workflows – coding pipelines, research projects, even building entire systems – pausing for human input at decision points. An optimised variant is reported to reach up to 12× the speed of other frontier models at equivalent quality.
Gemini 3.5 Pro – Orchestrator (Limited Preview)
As of 9 June 2026, Gemini 3.5 Pro is in limited Vertex preview for select enterprise customers; broad GA is still targeted for June 2026. The model is designed as the orchestrator/planner that drives Gemini 3.5 Flash instances as sub-agents. Google has announced a 2M token context window and a Deep Think reasoning mode for Pro, explicitly positioning the 3.5 family for multi-agent architectures rather than classic chatbots.
Gemini Spark – Agentic 24/7 Assistant
At Google I/O 2026, Google introduced Gemini Spark, an agentic personal assistant built on Gemini 3.5 and the Antigravity platform. Spark runs continuously on Google’s cloud, can be addressed directly via a dedicated Gmail address, and executes background tasks across Chrome and Google Workspace. Spark supports the Model Context Protocol (MCP) for external integrations and is rolling out first to Google AI Ultra subscribers.
Industry-Leading Context Window
Gemini 3.1 Pro processes up to 2 million tokens in a single context. This enables analysis of extensive contract portfolios, technical documentation, or entire codebases in a single request. The Flash models offer a 1 million token context window at significantly lower cost.
Native Multimodal Processing
The Gemini 3.x family natively processes text, images, audio, video, and PDF documents. This enables use cases such as automated video analysis, document extraction from scanned PDFs, or meeting evaluation combining audio and visual material.
Google Ecosystem
- Vertex AI: Enterprise deployment with SLA (EU hosting only for older models)
- Antigravity 2.0: Agentic development platform for Gemini 3.5
- Gemini Enterprise: Enterprise frontend with access to 3.5 Flash
- Google Workspace: Integration with Docs, Sheets, Gmail, and more
- Search Grounding: Access to current web information
- Google AI Studio: Rapid prototyping and API access
Specialised Variants
- Gemini 3.1 Flash Thinking: Extended reasoning for complex STEM tasks with a transparent thinking process
- Gemini 3.1 Pro Deep Research: Specialised for multi-step research and long analysis tasks
EU Availability
As of 9 June 2026: Gemini 3.5 Flash is GA on the EU multi-region endpoint on Vertex AI / Gemini Enterprise Agent Platform. Requests are routed exclusively inside the EU geography and the model is covered by the Vertex AI Data Processing Addendum. Gemini 3.5 Pro remains in limited Vertex preview — no GA yet, and EU multi-region availability not yet confirmed.
What works from EU projects today
- Gemini 3.5 Flash via the EU multi-region endpoint — GDPR-compliant routing inside the EU geography, GA on Vertex AI / Gemini Enterprise Agent Platform.
- Gemini 3.5 Flash via the global endpoint — additionally available for workloads that don’t require regional binding.
- Gemini 2.5 Pro and Gemini 2.0 Flash as single-region regional endpoints in
europe-west4(Netherlands), partial coverage ineurope-west3(Frankfurt) — for customers that need strict pinning to a specific EU country.
What is still missing
- A Gemini 3.5 Flash single-region endpoint in
europe-west3(Frankfurt) oreurope-west4(Netherlands) - Confirmed EU multi-region availability of the older Gemini 3.x family (3.1 Pro, 3.1 Flash, 3.1 Flash Thinking, 3.1 Pro Deep Research) — to be verified per model
- Gemini 3.5 Pro (Limited Preview, GA targeted for June 2026) — EU multi-region availability to be confirmed at GA launch
We recommend monitoring the Google Cloud regional availability documentation and the Gemini Enterprise Agent Platform release notes regularly.
Integration with CompanyGPT
Gemini models are integrated in CompanyGPT. Gemini 3.5 Flash is wired in via the EU multi-region endpoint for GDPR-compliant frontier reasoning and agentic coding workloads. Gemini 2.5 Pro and Gemini 2.0 Flash remain available as single-region endpoints in europe-west4 for customers that require strict country-level data residency. As soon as Google ships single-region 3.5 endpoints in Frankfurt or the Netherlands we will add them as default options.
Our Recommendation
Since 19 May 2026, Gemini 3.5 Flash is the most capable available Gemini model and outperforms Gemini 3.1 Pro on key coding and agentic benchmarks. EU enterprises can run it GDPR-compliantly via the Vertex AI / Gemini Enterprise Agent Platform EU multi-region endpoint today.
- Frontier reasoning and agentic workflows in EU: Gemini 3.5 Flash via the EU multi-region endpoint
- Strict single-country EU residency: Gemini 2.5 Pro in
europe-west4 - Cost-optimised pinned workloads: Gemini 2.0 Flash in
europe-west4 - Cross-cloud alternative: Anthropic Claude Opus 4.8 or Claude Sonnet 4.6 via AWS Bedrock (in-region Ireland / Stockholm / Frankfurt) — useful for hybrid Multi-Cloud strategies or when the workload is not bound to Google Cloud
We are closely tracking the rollout of single-region EU endpoints for Gemini 3.5 Flash and will update this page once Google ships them.