Claude

Claude is a chat-based AI assistant by Anthropic for problem solvers, writers, and developers who need help with reasoning, text work, and coding across web and API.

Key capabilities include:

• Advanced reasoning and analysis for complex questions, step-by-step problem solving, and data-focused work
• Vision + text understanding to analyze images alongside written prompts
• Coding support for generating and editing code, plus Claude Code for more autonomous coding workflows
• Research mode and long-form outputs for compiling comprehensive reports from multiple sources, plus Projects for persistent context, instructions, and file uploads

Pricing: Freemium. Free plan available; Pro costs $20/month (or $17/month billed annually). Max plans start from $100/month.

Notable for its emphasis on safety, honesty, and harmlessness, including alignment via constitutional AI, and for offering multiple model options (including Haiku, Sonnet, and Opus) for different speed and complexity needs.