Claude Opus 4.6 is the gold standard for nuanced reasoning. DeepSeek V4 Pro reaches similar conclusions for ~10x less cost and shows its work. CouncilMind runs both on your prompt so you can see the trade-off live.
Claude Opus: This problem needs a careful framing. The user's stated goal is X, but the deeper need is Y; the answer differs.
DeepSeek V4 Pro [reasoning]: Working through the problem step by step: Premise → Inference → Conclusion. The user's framing is X, but Y is the load-bearing constraint.
Verdict: Both arrive at Y. Claude's is more polished prose; DeepSeek's is more inspectable.
Polish or transparency. Both have a place.
When the deliverable is prose—a doc, an email, a strategy memo—Claude's tone usually wins.
When you need to verify the chain of thought—debugging, research, math—DeepSeek's traces help you catch errors.
When wrong is expensive, run both and let a third model adjudicate.
On your prompt, in 30 seconds
Reasoning, writing, research—your actual question.
Claude Opus 4.6 and DeepSeek V4 Pro stream live.
A verdict pass tells you which is right for the workflow you care about.
Both included free. Five queries on the house.