Unverified50% confidenceDecision RuleExact time
The criterion proposed by the creator: if a task has a clear definition of done, try Sonnet first; if it requires creativity or needs the model to help define "what counts as done," use Opus.
1
Sources
50%
Confidence
Long-term
Relevance
10/12/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedWhen using Opus 5.5, the completion state of a task should be explicitly defined (e.g., screenshot required, PR submitted, tests passing) to give the model a clear endpoint.70% similarUnverifiedIn the demo, the system classified the planning task difficulty as moderate and subsequently selected Claude Sonnet to handle it.68% similarUnverifiedAnthropic officially recommends: use Sonnet for everyday coding, bug fixing, high-throughput routine development, and polishing documents/slides/spreadsheets; use Opus for tasks requiring complex judgment, long-chain agentic coding, knowledge work, or the toughest problems.68% similarUnverifiedClaude 3.5 Sonnet 以精确的指令遵循和较低的幻觉率著称，适合准确性要求极高的文档分析和合规审查类任务64% similarUnverifiedThe key question for validating skill documentation is: can the model complete the intended task based solely on that document, without any additional context?61% similar
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