Undetectable Interview AI: How Haggle Stays Invisible During Your Interview

Why Most Interview AI Tools Can Be Detected

Every cloud-based AI interview tool — Cluely, FinalRoundAI, LockedIn AI, Interview Coder — has the same architectural weakness: they process your data on remote servers. This means every time you need an AI suggestion, your device makes an outbound API call. That call is visible.

On corporate networks, outbound traffic to AI API endpoints (OpenAI, Anthropic, proprietary servers) can be logged by network monitoring software. Unusual traffic patterns during an interview session create detectable signatures. This is why some companies have started monitoring for AI tool usage during remote technical assessments.

Haggle was engineered from the ground up to eliminate this vulnerability. In local mode (powered by Ollama), all AI inference runs on your device. There are no outbound API calls. No network traffic. Nothing to detect.

Three Layers of Invisibility in Haggle

Layer 1: Zero Network Traffic (Local Mode)

When using Haggle with Ollama and a local model (Llama 3, DeepSeek, Mistral, or any GGUF-format model), the application makes zero outbound network requests during your interview session. A network monitoring tool watching your connection will see no AI API traffic — because there is none. The AI runs entirely within your machine's CPU/GPU.

Layer 2: Invisible Screen Overlay

Haggle displays suggestions through a system-level overlay that does not appear in screen recordings, screen shares, or screenshots captured by video conferencing software. When you share your screen on Zoom, Google Meet, or Microsoft Teams, interviewers see only what you intend to show. The Haggle interface is invisible to them.

This is the same principle used by presentation teleprompters and heads-up displays — the overlay exists on your screen but is excluded from the screen-capture output.

Layer 3: Native Application Architecture

Unlike browser extensions or Electron-based apps that have a larger visible footprint, Haggle is built as a native macOS and Windows application. It doesn't inject into browsers, doesn't require elevated permissions beyond screen recording and microphone access, and runs with a minimal process signature.

Detectable vs Undetectable: A Comparison

Setting Up Haggle for Maximum Undetectability

Step 1: Install Ollama

Ollama is a free, open-source local AI runtime. Download it from ollama.com and install it on your Mac or Windows machine. It runs in the background and serves local language models to Haggle.

Step 2: Pull a Local Model

Run ollama pull llama3 or ollama pull deepseek-coder to download a local AI model. DeepSeek Coder is specifically optimized for coding interview problems. Llama 3 is excellent for system design and behavioral questions.

Step 3: Configure Haggle to Use Local Model

In Haggle's settings, select "Ollama" as your AI provider and choose your downloaded model. From this point, all AI processing happens locally. You can disconnect your internet entirely and Haggle will continue to function for the duration of your interview.

Step 4: Start Your Interview

Launch Haggle, grant screen recording and microphone permissions, and begin your interview. Haggle listens passively, detects questions, and surfaces AI suggestions in its invisible overlay. Your interviewer sees nothing. Your network logs show nothing. Your screen recording shows nothing.

Cloud Mode: Still More Private Than Competitors

If you prefer cloud-grade AI models (GPT-4o, Claude 3.5 Sonnet, Gemini Pro) for more complex reasoning, Haggle supports a Bring Your Own Key (BYOK) model. You supply your own API key from OpenAI, Anthropic, Google, or OpenRouter — Haggle never has access to your credentials or billing.

In BYOK cloud mode, traffic does leave your device — but to the AI provider you already trust, using your own account, not through a third-party intermediary like Cluely or FinalRoundAI. Your interview data is governed by your own API terms, not by an interview tool vendor's privacy policy.

Frequently Asked Questions

Is Haggle completely undetectable?

In local mode (Ollama), Haggle generates zero outbound network traffic during your interview. The overlay is excluded from screen recordings. No AI API domains are contacted. At the network and screen level, it is undetectable. The only exception is if a proctor physically observes your physical screen — but that applies to any assistant.

Can proctoring software detect Haggle?

Most proctoring software works by monitoring network traffic, capturing screenshots, or restricting running processes. Haggle in local mode leaves no network footprint. Its overlay is excluded from screen captures. It runs as a normal native desktop application, indistinguishable from any other productivity app.

Why are cloud-based tools like Cluely detectable?

Cloud tools must send your screen or audio to remote AI servers to generate suggestions. This creates real-time outbound traffic to identifiable endpoints (e.g., api.openai.com, cluely.com). On monitored networks, this traffic is logged and can be analyzed. Haggle's local mode eliminates this entirely.

What local AI models work best for technical interviews?

For coding problems: DeepSeek Coder V2 (excellent algorithm reasoning), Qwen2.5 Coder (strong on LeetCode patterns). For system design and behavioral: Llama 3.1 8B or 70B (broad reasoning), Mistral 7B (fast responses on standard hardware). All are available via Ollama at zero cost.

Does Haggle work on restricted corporate networks?

Yes. If a corporate network blocks AI API domains or restricts outbound traffic, cloud-based tools like FinalRoundAI and LockedIn AI will fail. Haggle in local mode makes no outbound connections — it works identically on any network, including air-gapped environments.