Claude Opus — Frontier reasoning model
Anthropic’s most capable model for complex reasoning, long agentic tasks, and careful code review. By Anthropic. Where it runs: API, Browser. Pricing: Pay per token, Subscription.
- Strength: Top-tier agentic coding
- Strength: Strong instruction following
- Watch out: Among the most expensive per token; save it for hard problems
- Best for Planning & architecture: Thorough designs that consider edge cases and trade-offs.
- Best for Hard bugs: Holds many hypotheses and evidence in mind.
- Best for Code review & PRs: Finds subtle bugs other models miss.
- Best for Large codebases: Stays consistent over long agent sessions.
Frequently asked questions
What is Claude Opus best for?
Planning & architecture: Thorough designs that consider edge cases and trade-offs. Hard bugs: Holds many hypotheses and evidence in mind. Code review & PRs: Finds subtle bugs other models miss. Large codebases: Stays consistent over long agent sessions.
How do I write better prompts for Claude Opus?
Give Claude Opus a clear goal, the relevant files or context, constraints, and acceptance criteria. Pregoo's Prompt Builder scores your prompt and estimates its token cost.
What should I watch out for with Claude Opus?
Among the most expensive per token; save it for hard problems.
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