IntroducingAlpha · In Development

Quantum Sentinel-Alpha

Specialized AI for secure software.

A specialized AI model being trained to find, understand and fix vulnerabilities in source code.

sentinel · report.jsonJSON / SARIF

// Planned report format

finding {

location
<file>:<line range>
cwe
CWE-<id>// when evidence is sufficient
evidence
data flow · trust boundary
remediation
concrete mitigation
patch
minimal, security-focused// optional
verification
tests · re-analysis

}

Evidence-backed findingRejectedAbstained
Illustration of the planned output structure, derived from the training objectives. Not model output; no Sentinel weights are available yet.
Status
Alpha · In Development
Alpha target
October 2026
Primary foundation candidate
Qwen3.5-9BFinal selection after the internal 4B / 9B security bake-off.
Primary languages
Python · JavaScript / TypeScript · Go
  • Cybersecurity-focused
  • Local-first
  • Open weights planned

Planned architecture

A specialized model. A verifiable system.

The model evaluates semantic risks. The Sentinel Engine supplies repository context and deterministic tools, then checks candidate findings. The planned model remains independently downloadable and locally usable.

  1. Repository / Pull Request

    Sentinel Engine
  2. Repository Indexer

    Sentinel Engine
  3. Static Signals + Context

    Sentinel Engine
  4. Quantum Sentinel

    Quantum Sentinel
  5. Candidate Findings

    Quantum Sentinel
  6. Verifier / Tests / Re-analysis

    Sentinel Engine
  7. Evidence-backed Finding

    Sentinel Engine
  8. JSON / SARIF / Human Report

    Sentinel Engine

Standalone model

Quantum Sentinel Model

  • Security analysis
  • Localization
  • CWE classification
  • Evidence
  • Patch proposals
  • Abstention

Context + deterministic tools

Sentinel Engine

  • Repository indexing
  • Context selection
  • Static signals
  • Tool orchestration
  • Verification
  • Tests
  • Re-analysis
  • JSON / SARIF

Deterministic work belongs in tools: indexing narrows the search, static analysis adds signals, verification checks model claims and tests help establish whether a patch still works and is safer. Specialization plus verification matters more than model size alone.

Security training objectives

From a potential risk to a reasoned finding.

Training objectives for Alpha. Performance has not yet been published. When evidence is insufficient, the model should express uncertainty or abstain.

  1. Detection

    Find potential vulnerabilities in source code while distinguishing unsafe patterns from benign lookalikes.

  2. Localization

    Identify affected files and relevant code spans, rather than returning only generic warnings.

  3. CWE Classification

    Map findings to appropriate CWE categories when sufficient evidence exists.

  4. Evidence

    Provide concise technical evidence around data flow, trust boundaries and why a pattern may be unsafe.

  5. Remediation

    Explain concrete ways to remove or mitigate a vulnerability.

  6. Patch Generation

    Propose minimal security-focused patches designed to preserve existing functionality.

  7. False-Positive Rejection

    Recognize similar-looking, safe code as benign. Abstain instead of inventing a vulnerability.

  8. Secure Review

    Review repositories, pull requests and diffs as a specialized second security reviewer.

Development plan

Alpha first. A stable release later.

Alpha is the first real security-SFT milestone, before Beta, Release Candidate and the later stable Quantum Sentinel 1.0. The early Lean plan aims for an initial Alpha fine-tune; the sequence below is a development plan, not a record of completed phases.

Alpha target

October 2026

An Alpha development target, not a guaranteed release date. Quantum Sentinel 1.0 follows later.

  1. Foundation

    Planned

  2. Baseline

    Planned

  3. Dataset / Garden

    Planned

  4. Calibration

    Planned

  5. SFT Alpha

    Current focus

  6. Data Iteration + Beta

    Planned

  7. Optional Hardening

    Planned

  8. Release Candidate

    Planned

  9. Quantum Sentinel 1.0

    Planned

rappidAI Research

Independent AI research. Berlin.

We build compact language models and open tools for inspectable AI systems. Independent, founder-led research from Berlin, with Quantum Sentinel-Alpha as our current security-model focus.

Meet rappidAI

The work

Intelligence. Under your control.

From model weights to agent execution. Three distinct research directions, built around efficiency, transparency and local control.

rappidAI Quantum

Compact models. Open experiments.

Security-specialized Sentinel, the Echelon model line and German-language pilot models. Explore the releases, methods and evidence behind each stage.

Sentinel Alpha + Echelon in development · Two public pilots

Explore our models

rappidAI Ghost

Set the boundaries.

An integrated security runtime for autonomous agents: isolation, SHADOW deception, prompt-injection signals, scoped approvals, runtime limits and evidence behind one simple flow.

v0.3.0 · Integrated agent security · Experimental

Explore

rappidAI Replay

Understand every run.

Record execution, restore technical state and compare branches. Local-first infrastructure for reproducible agent research.

Experimental · Open source

Explore

Our approach

Built to be understood.

Useful research leaves a trail. We connect our work to code, model artifacts and documented methods, so you can examine what works and where the limits are.

Inside the research
Efficiency
Compact architectures and local inference, with compute treated as a real constraint.
Control
Inspectable systems and explicit boundaries around what an agent can access.
Evidence
Published results, current development and open questions are clearly distinguished.

From the lab

Research you can inspect.

All publications

rappidAI

Independent. Focused. Berlin.

rappidAI is an early-stage, self-funded research and development initiative building compact intelligence and the infrastructure around it.