Gemini Cli vs Unknown Agent

AI Agent Reliability Comparison

According to StupidLLM's incident database of 64 documented AI agent failures, Gemini Cli has 3 incidents (avg severity 10.0/10) while Unknown Agent has 4 (avg severity 8.5/10). Here's how these two AI coding agents compare on reliability, failure modes, and real-world risk.

Gemini Cli

3
Incidents
10.0
Avg Severity
3
Critical
0
High

Top Failure Modes

Security Vulnerability 1
Scope Explosion 1
Destructive Action 1

Worst Incident

STUPID-2026-0027 10/10
Gemini CLI silently executed arbitrary code from an untrusted repo (CVE-2026-12537, CVSS 10.0)

Unknown Agent

4
Incidents
8.5
Avg Severity
3
Critical
0
High

Top Failure Modes

Security Vulnerability 3
Infinite Loop 1

Worst Incident

STUPID-2026-0022 10/10
AI vibe-coded Next.js app pinned vulnerable dependency — cryptominer compromised production server

Comparison Summary

Metric Gemini Cli Unknown Agent
Total Incidents 3 4
Avg Severity 10.0/10 8.5/10
Critical Incidents 3 3
Top Failure Mode Security Vulnerability Security Vulnerability

Frequently Asked Questions

Is Gemini Cli or Unknown Agent more reliable?

Based on StupidLLM's incident database, Gemini Cli has 3 documented failures (avg severity 10.0/10) while Unknown Agent has 4 (avg severity 8.5/10). Unknown Agent shows better reliability based on average severity scores.

What are the main differences between Gemini Cli and Unknown Agent failures?

Gemini Cli's most common failure mode is security vulnerability, while Unknown Agent most commonly fails via security vulnerability. Gemini Cli has 3 critical incidents vs Unknown Agent's 3.

Which has more critical-severity failures?

Both Gemini Cli and Unknown Agent have 3 critical-severity incidents — the most dangerous category of AI agent failure.

What is the most dangerous failure mode for Gemini Cli?

Gemini Cli's most frequent failure mode is security vulnerability — its worst documented incident (STUPID-2026-0027) was rated 10/10 severity. Understanding these failure patterns helps teams decide whether Gemini Cli is safe for their specific use case.

What is the most dangerous failure mode for Unknown Agent?

Unknown Agent's most frequent failure mode is security vulnerability — its worst documented incident (STUPID-2026-0022) was rated 10/10 severity. Understanding these failure patterns helps teams decide whether Unknown Agent is safe for their specific use case.

Should I use Gemini Cli or Unknown Agent for production code?

Based on StupidLLM's reliability data, Unknown Agent has a lower average failure severity (8.5/10 vs 10.0/10), making it the statistically safer choice for production environments. However, both agents have documented critical incidents — no AI coding agent is risk-free.

How many verified incidents does each agent have?

Gemini Cli has 3 verified incidents out of 3 total, while Unknown Agent has 4 verified out of 4. Verified incidents are confirmed against source evidence (GitHub PRs, bug reports, news articles), making them the most reliable data points in StupidLLM's database.

How does Gemini Cli compare to other AI agents?

StupidLLM tracks 27 AI coding agents. Gemini Cli has 3 documented failures — placing it among the higher-risk agents in the database. See the full comparison matrix for context against all tracked agents.

How does Unknown Agent compare to other AI agents?

StupidLLM tracks 27 AI coding agents. Unknown Agent has 4 documented failures — placing it among the higher-risk agents in the database. See the full comparison matrix for context against all tracked agents.