AI Models

Meet the Claude Model Family

Four powerful AI models, each optimized for different tasks. All included in your free 30-day trial.

Flagship

Claude Fable 5

The most capable model ever released by Anthropic. Mythos-class AI designed for complex reasoning, long-horizon agentic work, advanced software engineering, and scientific research. Features a 1 million token context window.

  • 1 million token context window
  • Long-horizon agentic tasks
  • Advanced software engineering
  • Scientific research & analysis
  • 128K output tokens per request
Agentic Work · Engineering · Science · Research
Most Powerful

Claude Opus 4

The flagship model for complex reasoning, deep analysis, and tasks requiring the highest level of intelligence. Perfect for research, strategy, and multi-step problem solving.

  • Complex reasoning & deep analysis
  • Advanced code generation
  • Multi-step problem solving
  • Research & academic work
  • 200K+ token context window
Research · Strategy · Complex Code
Best Balance

Claude Sonnet 4

The perfect balance between power and speed. Handles 90% of daily tasks with exceptional quality. Your go-to model for everyday use.

  • Fast & high-quality responses
  • Email & content writing
  • Code review & debugging
  • Data analysis & summaries
  • Ideal for daily workflows
Daily Work · Email · Code Review
Fastest

Claude Haiku

Instant responses for simple queries and real-time applications. Lightning-fast with minimal latency.

  • Near-instant responses
  • Quick questions & lookups
  • Real-time chat applications
  • Simple translations & edits
  • Lowest latency available
Quick Q&A · Chat · Lookups

Which Model Should You Use?

With Claude Max, you get all all four models. Switch freely between them based on your task.

🔥 Fable 5 Opus 4 Sonnet 4 Haiku
Intelligence ★★★★★ ★★★★★ ★★★★☆ ★★★☆☆
Speed ★★★☆☆ ★★★☆☆ ★★★★☆ ★★★★★
Context 1M 200K+ 200K+ 200K+
Best For Agentic Research Daily Use Quick Tasks
Try All Models Free for 30 Days