claude
Claude
Claude (by Anthropic) is OpenAI's main competitor. It is famous for its large context window (200k+), low hallucination rates, and "Artifacts" UI.
When to Use
- Coding: Claude 3.5 Sonnet is widely considered the best coding model in 2025.
- Long Context: Analyzing massive PDFs or codebases.
- Safety: Enterprise-grade safety guardrails.
Core Concepts
Models
- Opus: The smartest, largest model.
- Sonnet: The sweet spot. Fast and incredibly capable.
- Haiku: Fast and cheap.
Artifacts
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