Claude 3.5

service active paid

Anthropic's mid-generation update to Claude 3, with Claude 3.5 Sonnet released in June 2024. Despite being a "Sonnet" tier model, 3.5 Sonnet matched or exceeded Claude 3 Opus performance while maintaining Sonnet-level pricing and speed. Became the default choice for many AI coding applications.

Implements

Concepts this tool claims to implement:

  • Opus-level performance at Sonnet pricing. Particularly strong on coding and reasoning tasks.

  • Image understanding inherited from Claude 3 with improved visual analysis capabilities.

  • Anthropic Messages API with full tool use support.

  • Excellent coding performance made it the model of choice for Claude Code and similar coding assistants.

Integration Surfaces

  • REST API
  • Python SDK
  • TypeScript SDK

Details

Vendor
Anthropic
License
Proprietary
Runs On
cloud
Used By
human, agent, system

Notes

Claude 3.5 Sonnet became a standout model for its combination of capability and efficiency. Its strong coding performance made it the default for many AI coding assistants and agent applications.