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Claude Opus 4
High-end Claude model for difficult reasoning, coding and long-running work
Claude Opus 4 is positioned for demanding tasks that need stronger reasoning, deeper code understanding and careful execution over longer workflows.
historyVersions and aliases
Model IDclaude-opus-4-20250514
Version dateMay 14, 2025
Sourcemodels.dev
descriptionOverview
Overview
Claude Opus 4 is a high-capability model for complex knowledge work.
Best for
Use it for difficult coding tasks, deep analysis, planning and workflows where quality matters more than raw cost.
lightbulbUse cases
- Advanced coding
- Deep research analysis
- Complex planning
- High-quality writing
thumb_upStrengths
- Strong reasoning quality
- Good coding capability
- Careful long-form responses
- Useful for complex workflows
infoLimitations
- Higher cost
- May be slower than smaller models
- Overkill for simple tasks