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Claude Opus 4.6
#1 Best LLMThe most capable model for complex reasoning and coding
4.9(142,000 reviews)
50M+ users
FreemiumText AILLMReasoningCoding
Claude Opus 4.6 is Anthropic's most powerful model, setting state-of-the-art on coding benchmarks (SWE-bench), reasoning, and tool use. With a 200K-token context window and best-in-class agentic performance, it powers Claude Code and the Claude Agent SDK.
Key Features
State-of-the-art on SWE-bench coding benchmark
200K-token context window with strong recall
Native tool use and computer use
Best-in-class agentic loop performance
Vision input and structured output
Who Uses It?
👤
Engineers
Complex refactors, architecture, debugging
🔬
Researchers
Long-document analysis, literature review
👤
Product Teams
Spec writing, decision frameworks
Pros & Cons
Pros
Strongest model for complex software engineering
Most reliable at following nuanced instructions
Excellent for multi-step agentic workflows
Cons
Premium tier needed for heavy usage
Slower than Haiku for trivial tasks
API pricing higher than Sonnet
Ready to get started?
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Pricing
⚡
freemium
Free tier on claude.ai. Pro at $20/mo. API: $15/$75 per M tokens.
Tags
LLMReasoningCodingLong-contextAgent
Best For Industries
TechnologyResearchEducationBusiness