Google DeepMind introduces Gemini 3.5 Flash Cyber, a lightweight cybersecurity model fine-tuned from 3.5 Flash to find, validate, and patch vulnerabilities. It is available via a limited-access pilot program to governments and trusted partners through CodeMender.

New model

Image published with the post by Google DeepMind

Where to run it

Google AntigravityModel update· 19 May

Gemini 3.5 Flash in Google Antigravity

Gemini 3.5 Flash is now the default Flash model in Google Antigravity, delivering frontier performance for agents and coding, with co-optimization for speed and efficiency.

How it measures

Artificial Analysis · Intelligence Index · Medium

33.6106thof 697 models

Median 12.5Top 57.6

Benchmarks, as Artificial Analysis ran them

92%GPQA Diamond
41%Humanity's Last Exam
39%Terminal-Bench Hard
96%τ²-Bench
75%IFBench
74%Long context reasoning

Per 1M tokens: $1.50 in · $9.00 out
Context: 1M tokens

LMArena · Text29thof 417

1Gemini 4 Argon (High)
2Muse Wonder (Max)
3Claude Opus 5.5 (High)
4Claude Fable 5 (High)

gemini-3.5-flash-high · 1,477 (1,474–1,481) · 48,486 votes

Rated by versionGemini FlashLevel with Gemini 3 Flash; Gemini 3.8 Flash rates 19 points higher.

Gemini 3.5 Flash · 1,477 (1,474–1,481) · 29th

Against list priceRating for the price

Gemini 3.5 Flash · 1,477 · $3.38 per 1M tokens ($1.50 in, $9.00 out) · 1M context

LMArena, CC BY 4.0, 15 October 2026 · prices OpenRouter, list price blended 3:1, read 22 October 2026 · Artificial Analysis, read 22 October 2026

Everything else, by date

Gemini 3.5 Flash deprecationDeprecation8 Oct

About the model

Lab: Google DeepMind
Variant: Gemini 3.5 Flash Lite
Released: 19 May 2026, per models.dev
OpenRouter: Listed 19 May 2026google/gemini-3.5-flash

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