Google’s Gemini 3.8 Flash is built for agents, while its Cyber twin hunts vulnerabilities

September 5, 2026 154news ai

Google’s Gemini 3.8 Flash is built for agents, while its Cyber twin hunts vulnerabilities

Taryn Plumb

5:02 pm, PT, September 2, 2026

Google keeps cranking out Flash models: the company on Wednesday announced two versions of a new 3.8 Flash.

Variants of Gemini 3.8 Flash

The variants include:

  • A standard Flash, a “workhorse” model for agentic tasks, software development, and multi-step reasoning.
  • Flash Cyber optimized for vulnerability detection and mitigation.

Google CEO Sundar Pichai said in an X post that 3.8 Flash delivers “significant leaps” from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

Flash Cyber Capabilities

Google claims Flash Cyber is its “most capable” cybersecurity model, achieving:

  • 86.2% on the CyberGym cybersecurity benchmark
  • 47.2% on CWE-Bench, evaluating AI patching abilities
  • Over 70% success rate discovering vulnerabilities across 20 programming languages in an internal Google benchmark

Availability and Pricing

Gemini 3.8 Flash is available now in Gemini Enterprise. Developers can try it out via the Gemini API through Google AI Studio, Google Antigravity, Android Studio, or generate UIs in Stitch.

It’s priced at:

  • $0.75 per million input tokens
  • $3.75 per million output tokens

Users can customize and adjust model effort levels based on their needs around quality, cost, and latency.

Benchmarks and Specialized Domains

Gemini 3.8 Flash was evaluated across numerous benchmarks testing:

  • Coding
  • Multimodal capabilities
  • Computer use
  • Long-context and knowledge work
  • Scientific reasoning

It also performed well in specialized knowledge domains requiring more in-depth analysis and reporting, outperforming its predecessor and other frontier models on benchmarks like:

  • Vals Finance Agent V2 for finance
  • Harvey's Legal Agent Benchmark for law
  • Scoring 54.9% on Humanity’s Last Exam (HLE)-Verified

Examples of Gemini 3.8 Flash Creations

In examples shared by Google, Gemini 3.8 Flash:

  • Built a game using looping techniques in Google’s Antigravity platform.
  • Created a fully-functional DOS version of Google Maps with interactive locations, directions, and street views.
  • Developed a 3D visualizer that automatically decomposed devices into layers for inspection.
  • Crafted a topographic map of famous geographical sites based on real datasets from the U.S. Geological Survey.