Is Gemini 3.5 Pro out?

No — it was announced but not released. Pichai said 'give us until next month'; as of 15 June 2026 it's a limited Vertex preview. Only Gemini 3.5 Flash shipped.

What's special about Flash?

Google made it the default across its AI surfaces on day one and says it beats Gemini 3.1 Pro on key benchmarks (its own framing). Reported pricing is ~3× the old Flash.

AI models

Google ships Gemini 3.5 Flash at I/O; the Pro stays unreleased

One model shipped, one stayed a promise.

The FeaturedDaily Desk19 May 2026Verified June 2026

Google launched Gemini 3.5 Flash at I/O on 19 May 2026; Gemini 3.5 Pro was not released.

What happened. At Google I/O on 19 May 2026, Google launched Gemini 3.5 Flash and made it the default in the consumer Gemini app, AI Mode in Search and the Vertex/Gemini API.

The claim. Google positions Flash as beating Gemini 3.1 Pro on coding, agentic and multimodal benchmarks (a cited 76.2% on Terminal-Bench 2.1) — vendor/third-party figures, so attribute.

The price. Reported API pricing is $1.50/M input, $9/M output — about 3× the prior Gemini 3 Flash (per reporting).

Sources

Google introduces Gemini 3.5 Flash at I/O 2026 — a faster, cheaper model for AI agents and coding — MarkTechPost, 20 May 2026

Google ships Gemini 3.5 Flash at I/O; the Pro stays unreleased

Sources

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