Install & Configure
Download Specter for your platform. Paste your API key once — Gemini, OpenAI, or Claude. Works immediately, no account required.
Takes less than 2 minutes.
Specter watches your screen, detects interview questions the instant they appear, and streams spoken-ready answers in real time. Completely invisible to your interviewer.
Free to start · No account required · Mac · Windows · Linux
Race Mode
40% faster
Stealth
Screen-share safe
BYOK
Keys stay local
How It Works
No complex setup. No account required. Three steps from download to your next interview.
Download Specter for your platform. Paste your API key once — Gemini, OpenAI, or Claude. Works immediately, no account required.
Takes less than 2 minutes.
Launch Specter before your interview begins. Choose your role — SWE, System Design, Behavioral, DSA, Data Science, or PM. Enable Race Mode for fastest responses.
Runs invisibly in the background.
Specter scans all connected monitors continuously. The moment a question appears — typed or spoken — it streams a spoken-ready answer. You stay composed.
Zero dead-time with non-blocking queue.
Features
Built specifically for competitive interviews — every feature earns its place by solving a real problem candidates face.
All connected screens captured and analyzed in parallel. Questions detected on any monitor the moment they appear — no manual switching required.
Fire two LLM providers simultaneously. The first token wins. Empirically ~40% faster time-to-first-token vs single-provider. Never wait on a slow API again.
Specter's window is completely invisible to Zoom, Google Meet, Microsoft Teams, and all other screen-sharing software. Your co-pilot stays your secret.
Open up to 5 independent panels simultaneously. Keep system design references, behavioral frameworks, and role cheat sheets open alongside the live question stream.
Captures system audio and microphone simultaneously. Whisper transcription + Web Speech API for live streaming. Voice Activity Detection filters silence automatically.
Execute Python, JavaScript, TypeScript, Java, C++, Go, and Rust directly in Specter. Verify AI-generated code with one click before presenting it.
Every answer gets three instant refinement options: Rephrase for a different angle, Expand for more depth, Shorter for concise delivery. One click, instant result.
Paste your Gemini, OpenAI, or Claude API key and Specter connects directly — no markup, no middleman. Your keys never leave your machine.
Interview Roles
Each mode uses a specialized system prompt tuned for the expectations of that interview type — delivering the right depth, format, and vocabulary on demand.
Switch roles mid-session without restarting
Comparison
Specter beats Chiku AI and Parakeet on every dimension that matters. See the full breakdown.
| Feature | Specterby Tattva Mind | Chiku AI | Parakeet |
|---|---|---|---|
| macOS Support | arm64 + x64 | arm64 only | |
| Windows Support | |||
| Linux Support | AppImage + .deb | ||
| Multi-Monitor Scan | All screens, parallel | ||
| Race Mode (dual LLM) | |||
| Audio Detection | Real-time streaming | Batch only | Batch only |
| Whisper Transcription | Partial | ||
| Web Speech API | |||
| Voice Activity Detection | |||
| Hold Mode (in-person) | |||
| Built-in Code Runner | 7 languages | ||
| Content Protection | Full stealth | Partial | |
| Multi-LLM Support | Gemini, GPT-4o, Claude | 1 LLM | 1 LLM |
| Bring Your Own Key | Limited | ||
| Answer Refinement | Rephrase/Expand/Shorter | Limited | |
| Multi-Panel Workspaces | Up to 5 panels | 1 panel | 1 panel |
| Session Debrief + AI Score | 1-10 scoring | ||
| Practice Mode | 20+ questions | ||
| Interview Roles | 6 specialized modes | Generic | Generic |
| Answer History | 300 entries + export | Limited | Limited |
| Custom System Prompt | |||
| Free Tier | Full features, BYOK | Limited trial | Limited trial |
Comparison based on publicly available information as of June 2025. Features may change.
Testimonials
I went from 2/5 on system design to getting an offer from Meta. Specter's Race Mode means answers come before the interviewer finishes typing. Used it across 6 rounds and never felt unprepared.
Sarah K.
Software Engineer L6 · Meta
Cleared 4 FAANG rounds back to back. Multi-panel workspace kept System Design cheat sheets open while the main window handled live questions. Session Debrief scored me 8.5/10 on average.
Raj M.
CS Graduate · IIT Delhi → Google
I was nervous about PM frameworks. Specter's role-specific prompts gave me RICE, ICE, and user empathy answers on demand. The answers were articulate and interview-ready. Got the offer in 2 rounds.
James L.
Product Manager · Series B Startup
Pricing
Buy credits once and use them forever, or subscribe for a better monthly rate. Chiku AI charges ₹1,999 for 7 hrs. Our Pro Pack gives 25 full sessions at ₹1,999 — 3× more value.
₹8988 billed annually — save ₹3000/year
Cancel anytime · No long-term contract
₹15588 billed annually — save ₹6000/year
Cancel anytime · No long-term contract
Chiku AI and Parakeet charge Chiku AI ₹3,499+GST/mo unlimited. Specter gives you more features at a fraction of the price.
Not sure which to pick?
Occasional interviews → Credit Pack (no commitment, credits never expire). Regular prep → Lite subscription (unlimited sessions/mo, BYOK). No API key / daily use → Pro subscription (unlimited sessions + API credits included).
All plans include a 3-session free trial with limited features. Subscriptions cancel anytime. Credit packs never expire.
FAQ
Everything you need to know before your first session.
Yes. Specter uses OS-level content protection to make its window invisible to any screen-sharing software — including Zoom, Google Meet, Microsoft Teams, Webex, and OBS. When you share your screen, Specter simply does not appear.
Specter supports three LLM providers: Gemini 2.0 Flash (the default — fastest and most cost-effective), GPT-4o (OpenAI, excellent for complex reasoning), and Claude 3.5 Sonnet (Anthropic, outstanding for nuanced long-form answers).
The free trial gives you 3 sessions with core question detection and answer streaming. Race Mode, audio capture, multi-monitor, multi-panel workspaces, answer refinement, code runner, and session debrief are locked behind paid plans.
Yes. Specter is fully cross-platform. macOS users get DMG for both Apple Silicon (arm64) and Intel (x64). Windows users get an NSIS installer. Linux users get an AppImage and a .deb package.
Race Mode fires two LLM providers simultaneously with every detected question. Specter streams the response from whichever provider returns its first token first, then discards the slower connection. In testing, Race Mode reduced 95th-percentile time-to-first-token by approximately 40%.
Yes. Enable Hold Mode before your session starts. In Hold mode, Specter queues detected questions without streaming answers immediately — you review queued questions at your own pace, on a secondary device or a screen angled away from the interviewer.
No. Specter processes everything locally on your device. Questions, answers, and session history are all stored in local JSON files. Nothing is sent to Tattva Mind's servers. API calls go directly from your machine to your chosen LLM provider.
Just paste them in Settings → API Keys. Your key is stored locally, used only to call the LLM API directly from your device, and never shared with Tattva Mind. No additional charges or markups — you pay your LLM provider at their standard rates.
Get Started Free
Join thousands of candidates who leveled the playing field. Free to start, no account required.