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AI Engineering with Python
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Module 6 · Frontier AI Engineering
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Frontier model selection: Opus vs Sonnet vs Haiku
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📝 **Question:** Default model for a new agentic feature? 📋 Pick the right answer. 💡 **Hint:** Re-read the theory above if unsure.
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📝 **Question:** Default model for a new agentic feature? 📋 Pick the right answer. 💡 **Hint:** Re-read the theory above if unsure.
A
Always Opus 4.6 — the highest-quality checkpoint guarantees you never under-spend on accuracy on a paid product
B
Start with Sonnet 4.6 (best value), eval-drive against Opus and Haiku to find the cheapest model that still clears your task accuracy bar
C
Always Haiku 4.6 — it's the fastest checkpoint per token, so cost-per-resolved-ticket is automatically the lowest of the lineup
D
Pick whichever Claude model the most-upvoted LinkedIn post in your feed this week says is the best for support workflows
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