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Anthropic

Anthropic: Claude 3.5 Sonnet

This model is deprecated

Claude 3.5 Sonnet was deprecated on Oct 22, 2025 and can no longer be run here. Its evaluation results and details remain available for reference. Try Claude Sonnet 5 instead.

Claude 3.5 Sonnet Overview

Claude 3.5 Sonnet, introduced by Anthropic in June 2024 and upgraded in October 2024, is the mid-tier model of the Claude 3.5 family, designed to balance speed, cost, and advanced reasoning. It is multimodal, handling text and images, and the upgraded version introduced a “computer use” beta feature, allowing the model to interact with a desktop environment for tasks like cursor control and typing. With a 200,000-token context window, it supports long-context reasoning, coding, and multi-step workflows.

Sonnet is positioned as a cost-effective alternative to higher-end models, priced at $3 per million input tokens and $15 per million output tokens. It performs well on benchmarks relative to Claude 3 and earlier Opus models, and its upgrades enhanced tool use, coding, and agentic reasoning. However, Anthropic announced in August 2025 that Claude 3.5 Sonnet will be retired on October 22, 2025, with Claude Sonnet 4 recommended as its successor. Common use cases include enterprise-scale assistants, research workflows, and productivity automation.

Claude 3.5 Sonnet Details & Performance

Details

Resources

Vision Tasks

CaptioningChart Question AnsweringClassificationDocument Question AnsweringImage TaggingMulti-Label ClassificationOCRObject DetectionVision LanguageVisual Question Answering

Features

Foundation VisionLLMs with Vision CapabilitiesMultimodal Vision

Usage

Past 30 Days

Not available

Not in Playground

Performance

Avg. Latency

Arena Rankings

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Other Anthropic Sonnet models

Other versions in the same family as Claude 3.5 Sonnet.

Claude 3.5 Sonnet License

Proprietary

License terms and commercial-use guidance for Claude 3.5 Sonnet.

This model is proprietary. The author retains all rights, and use of the model is governed by their specific terms of service or license agreement.

Commercial use depends on the terms set by the model author. Most proprietary commercial models require a paid subscription, API key, or per-call billing. Check the provider’s pricing and terms-of-service for details.

License information is provided as a guide and is not legal advice.