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Claude Sonnet 3.5

Retired

An Anthropic model with a 200K-token context window, image input and tool calling. Released on the Anthropic API June 20, 2024, now retired.

Access details: Anthropic API

The model ID to use in API requests.

claude-3-5-sonnet-20240620
Updated Sep 23, 2026

Capabilities & limits

Context window
200K
Maximum output
8K
Image input
Supported
Tool calling
Supported
Structured output
Unsupported

Pricing

USD / 1M tokens
Input
No longer sold
Output
No longer sold

No longer sold on the Anthropic API.

Price history
Oct 28, 2025

Input No longer sold per million tokens

Oct 28, 2025

Output No longer sold per million tokens

Technical details

Parameters
Not published
Active parameters
Not published
Architecture
Not published
Training / knowledge cutoff
Apr 2024
Input modalities
Text, image
Output modalities
Text

Release & lifecycle

First available
Jun 20, 2024
retired
As of Sep 13, 2026

Considering a switch?

Specs only go so far. Try both on your own tasks and compare quality, speed and cost.

Compare with GPT-4o Mini →

Prices and availability as of October 20, 2026. Anthropic's own pages have the latest.