Is Gemini 3.5 Pro released yet in August 2026?

No. As of August 1, 2026, Gemini 3.5 Pro is still not generally available. It was announced at Google I/O on May 19, 2026, and has slipped repeatedly. On July 21, 2026 Google shipped Gemini 3.6 Flash, 3.5 Flash-Lite, and Flash Cyber instead — but no 3.5 Pro. Prediction markets had leaned toward a late-July/early-August window.

Why is Gemini 3.5 Pro delayed?

Google has not given an official reason. It launched Gemini 3.5 Flash and then the 3.6 Flash line as stopgaps while 3.5 Pro stayed in limited Vertex preview. The continued absence has raised questions about Google's flagship strategy, per TechCrunch's July 21, 2026 coverage.

What should I use instead of Gemini 3.5 Pro right now?

For a Google model, use Gemini 3.6 Flash (the July 2026 default, $1.50/$7.50 per MTok, ~65% fewer output tokens) or Gemini 3.1 Pro ($2/$12) for heavier reasoning. For frontier coding, Claude Opus 5 ($5/$25) and GPT-5.6 Sol ($5/$30) lead as of August 2026.

Quick Answer

Is Gemini 3.5 Pro Out Yet? August 2026 Status

Published: August 1, 2026

The Short Answer

No — Gemini 3.5 Pro is still not generally available as of August 1, 2026. Announced at Google I/O on May 19, 2026, it has slipped past every rumored window. On July 21, 2026, Google shipped Gemini 3.6 Flash, 3.5 Flash-Lite, and Flash Cyber — but still no 3.5 Pro.

The Timeline

Date	Event
May 19, 2026	Gemini 3.5 Pro announced at Google I/O
~June 2026	GA “expected” — slipped
Mid-July 2026	Leaks push launch to August
July 21, 2026	Google ships 3.6 Flash, 3.5 Flash-Lite, Flash Cyber — no 3.5 Pro
Aug 1, 2026	Still in limited Vertex preview, no public GA

What Google Shipped Instead

Rather than the flagship Pro, Google released a Flash-tier wave in July 2026:

Gemini 3.6 Flash — new default ($1.50/$7.50 per MTok), uses up to 65% fewer output tokens than 3.5 Flash.
Gemini 3.5 Flash-Lite — cheapest tier at $0.30/$2.50.
Flash Cyber — a security/coding-leaning Flash variant.

The 3.5 Pro absence prompted fresh questions about Google’s flagship strategy in TechCrunch’s July 21 report.

What to Use Right Now

Google model, cheap & fast → Gemini 3.6 Flash ($1.50/$7.50)
Google model, heavier reasoning → Gemini 3.1 Pro ($2/$12)
Frontier coding → Claude Opus 5 ($5/$25) or GPT-5.6 Sol ($5/$30)
Cheapest coding agent → DeepSeek V4 Flash 0731 ($0.14/$0.28)

Bottom Line

Don’t wait on 3.5 Pro. The 3.6 Flash line is the practical Google default in August 2026, and frontier coding is better served by Opus 5 or GPT-5.6 Sol until Pro actually ships.

Sources

TechCrunch — Google’s three new Gemini models, no 3.5 Pro (Jul 21, 2026): techcrunch.com/2026/07/21/google-releases-three-new-gemini-models-but-no-3-5-pro
Google I/O 2026 keynote: io.google