Model

Gemini 3.5 Flash Cyber

CLOSED

Google · Gemini 3.5 family · released Jul 21, 2026

Fine-tune of Gemini 3.5 Flash specialized for finding, validating and patching security vulnerabilities, released alongside Gemini 3.6 Flash and 3.5 Flash-Lite on July 21, 2026 but exclusive to Google's CodeMender program for governments and trusted partners — no public API, no published pricing (apiAvailable/price reflect that, not a data gap), no disclosed standalone context window (1M inherited from base 3.5 Flash as a best estimate). Within CodeMender, up to five Cyber calls are combined into one report.

ReasoningCodingVisionFunction callingTool useAgentic

3028.0

Elo · unrated

Parameters

Undisclosed

Active params

Undisclosed

Context

1M tokens

Architecture

Sparse Mixture-of-Experts Transformer (configuration undisclosed), fine-tuned from Gemini 3.5 Flash for cybersecurity vulnerability discovery, validation and patching

License

Proprietary (CodeMender pilot access only)

Languages

—

API price (in/out)

No hosted API

Modalities

text

Benchmark results

Bar shows position within the tracked field; marker = field best

CyberGymCoding83.2%#2

best: GPT-5.6 Sol · 84.5%

Run it locally

Closed weights — available via API only. No local deployment.

Input / M tok

—

Output / M tok

—

Gemini 3.5 family

Elo progression across releases

Gemini 3.5 FlashMay 20262526.7 Gemini 3.5 Flash CyberJul 20263028.0 Gemini 3.5 Flash-LiteJul 20262125.6

Resources

DOCShttps://deepmind.google/blog/introducing-gemini-3-5-flash-cyber

API price — · each benchmark row carries its own source badge (see methodology)