AI hallucination blocker & LLM prompt gatekeeper. ChatGPT hallucination fix—prevent AI guessing, verify LLM inputs before sending.
Users
3
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#291K
#239K among extensions
Version
1.6.27
updated 23 Aug 2026
Users
monthly, 2 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About AI Hallucination Blocker - ChatGPT
ChatGPT hallucination fix — stop AI making things up before you hit Send.
Tired of ChatGPT, Gemini, or Claude inventing dates, names, and numbers? This AI hallucination blocker is an AI accuracy extension for everyday prompts and power users alike.
Prevent AI guessing. When your ask is vague, models fill in fake metrics and made-up details. This LLM prompt gatekeeper intercepts Send, breaks your prompt into parts, and makes you verify LLM inputs before sending (or mark unknowns as [TBD]).
Works on: ChatGPT · Google Gemini · Claude prompt validation · Microsoft Copilot
What it does
Verify LLM inputs before sending — Pre-flight check on audience, dates, metrics, and scope. Lock meaning before the model runs.
Preview without sending — Paste a prompt in the side panel; see what would be flagged. No message sent to the chat.
Compare vague vs locked replies — Reply A (sent as-is) vs Reply B (after you confirmed facts). See what the model invented when you were vague.
Audit the reply — Flags names, dates, and numbers that were not in your confirmed list.
Your choice of analyzer — On-device Chrome AI, local Ollama, or your own OpenAI-compatible API key.
Who this is for
- Anyone searching for a ChatGPT hallucination fix
- Managers tired of AI making up status, deadlines, or stakeholder names
- Developers who want an LLM prompt gatekeeper before prompts hit the interface
- Claude and Gemini users who need strict prompt grounding
Privacy
- Analysis runs on your device, your Ollama, or your cloud API — not on RAG Box servers
- Settings and API keys stay in browser storage on this computer
- No account required for the core gate
Pricing
- 30-day free trial — full features
- $15.95/mo on Chrome Web Store after trial — includes free updates while subscribed
- CPFS Runner — $49/mo (https://ragbox.llc/tutorials/cpfs-runner.html) — separate product, IDE discipline
- CPFS MCP — $49/mo (https://ragbox.llc/tutorials/cpfs-mcp.html) — separate product, agent discipline
- No forced bundle — one-time $49 browser license and cross-sell options on other channels (https://ragbox.llc/tutorials/cpfs-in-browser.html#pricing)
User guide: https://ragbox.llc/tutorials/cpfs-in-browser-user-guide.html
Privacy policy: https://ragbox.llc/privacy/source-gate.html