Claude 4 Opus
Anthropic · 2025
Anthropic's most powerful model for complex reasoning, research, and specialized tasks.
Quick Facts
Parameters
Undisclosed
Context Window
200K tokens
Modalities
text, image, audio
Open Source
No
Pricing
$20/mo Pro / $30/user/mo Team
Released
2025
Developer
Anthropic
About
Claude 4 Opus is Anthropic's most capable model, designed for complex reasoning, research, and specialized tasks requiring deep analytical thinking. It features a 200K token context window and enhanced multimodal capabilities. Claude 4 Opus represents a significant leap in reasoning depth, scientific knowledge, and nuanced understanding compared to previous generations. It is the preferred choice for professionals working on cutting-edge research, complex mathematical proofs, legal analysis, and any domain requiring the highest level of cognitive performance.
Strengths
- +Deepest reasoning and analytical capabilities in Claude family
- +Exceptional at scientific and technical domains
- +Superior long-context understanding and recall
- +Advanced multimodal understanding
Weaknesses
- −Higher cost per token than Sonnet
- −Slower response times for deep reasoning
- −Over-provisioned for simple daily tasks
Best For
Advanced research and scientific analysis
Complex legal document review
Mathematical reasoning and proofs
High-stakes professional decision support
Pricing
Pro
$20/mo
- Claude 4 Opus access
- Higher rate limits
- Projects
Team
$30/user/mo
- All Pro features
- Shared workspaces
- Priority support
API
$15.00/1M input tokens
- Pay-as-you-go
- 200K context
- Multimodal input
Technical Specs
Parameters
Undisclosed
Context Window
200K tokens
Modalities
text, image, audio
Languages
Open Source
No
Developer
Anthropic
Released: 2025
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