Claude Sonnet 4.5

claude-sonnet-4-5

Anthropic's smart model for complex agents and coding tasks. Offers the best balance of intelligence, speed, and cost for most use cases, with exceptional performance in coding and agentic workflows.

Upcoming Retirement

This model will be retired on September 28, 2026. Consider migrating to a newer model before this date.

Use this model with Aisle

Chat

Have natural conversations with the model in a familiar interface

Prompts

Automate tasks, share with your team, and deploy to chat

Playgrounds

Test prompt variants, model settings, and compare models side by side

Workflows

Chain prompts together for complex automation and outcomes

Context Window

200K

tokens

Max Output

64,000

tokens

Temperature

0 – 1

default: 0.7

Extended Thinking

Supported

Web Search

Available

MCP Support

Available

Structured Output

Available

Supported File Formats

Images

WEBP(5 MB)PNG(5 MB)JPEG(5 MB)GIF(5 MB)

Documents

pdftextdocxlsrtfdocxxlsxpptxpptodtodpods