Is Claude Code or GPT-5.6-Sol more reliable?

Based on StupidLLM's incident database, Claude Code has 31 documented failures (avg severity 7.2/10) while GPT-5.6-Sol has 3 (avg severity 9.0/10). Claude Code shows better reliability.

What are the main differences between Claude Code and GPT-5.6-Sol failures?

Claude Code's most common failure mode is Destructive Action, while GPT-5.6-Sol most commonly fails via Destructive Action. Claude Code has 9 critical incidents vs GPT-5.6-Sol's 2.

Which has more critical-severity failures?

Claude Code has more critical failures (9 vs 2), indicating a higher likelihood of severe, production-impacting incidents.

Should I use Claude Code or GPT-5.6-Sol for production code?

Claude Code has a lower average failure severity (7.2/10 vs 9.0/10), 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?

Claude Code has 30 verified incidents out of 31 total, while GPT-5.6-Sol has 2 verified out of 3. Verified incidents are confirmed against source evidence.

Head to head

Claude Code vs GPT-5.6-Sol

Comparing 31 documented Claude Code incidents against 3 for GPT-5.6-Sol.

Full Claude Codereport →Full GPT-5.6-Solreport →

Verdict

Claude Code has the lower average failure severity (7.2/10 vs 9.0/10), making it the statistically safer choice of the two — though both agents have documented critical incidents.