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Claude 3.5 Sonnet

✓ Verified

Mid-tier Claude model with 200K context for coding and agentic workflows

Updated Dec 7, 2025
AI ModelPay-per-useAPIWebiOS
Last reviewed: Dec 7, 2025Details verified against vendor changelogs and hands-on usage.
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Pricing and features change frequently—confirm on the vendor site.

About

Claude 3.5 Sonnet (launched Aug 28, 2025) is Anthropic's flagship mid-tier model with a 200K context window, strong coding and vision performance, and pay-per-use pricing at $3 per 1M input tokens and $15 per 1M output tokens. It is available via Claude.ai, the Claude iOS app, the Anthropic API, Amazon Bedrock, and Google Vertex AI, supports tool use/function calling, and powers agentic workflows, RAG, and coding assistants.

Key Features

  • 200K token context window with text and image inputs
  • Strong coding and multi-step reasoning performance
  • Tool use/function calling and structured outputs
  • Available via Anthropic API, Claude.ai, Claude iOS, Amazon Bedrock, and Google Vertex AI
  • Artifacts workspace in Claude.ai for editing generated code and content

Use Cases

    Technical Details

    Languages

    Any (via API)

    AI Models

    claude-3-5-sonnet

    Integrations

    Anthropic API (Messages)Claude.aiClaude iOSAmazon BedrockGoogle Vertex AI

    Frequently Asked Questions

    What is Claude 3.5 Sonnet?

    Claude 3.5 Sonnet (launched Aug 28, 2025) is Anthropic's flagship mid-tier model with a 200K context window, strong coding and vision performance, and pay-per-use pricing at $3 per 1M input tokens and $15 per 1M output tokens. It is available via Claude.ai, the Claude iOS app, the Anthropic API, Amazon Bedrock, and Google Vertex AI, supports tool use/function calling, and powers agentic workflows, RAG, and coding assistants.

    How much does Claude 3.5 Sonnet cost?

    Claude 3.5 Sonnet offers pay-per-use pricing. Plans include: API on-demand: $3 per 1M input tokens; $15 per 1M output tokens.

    What programming languages does Claude 3.5 Sonnet support?

    Claude 3.5 Sonnet supports 1+ programming languages including Any (via API).

    What AI models does Claude 3.5 Sonnet use?

    Claude 3.5 Sonnet is powered by claude-3-5-sonnet.

    What platforms does Claude 3.5 Sonnet support?

    Claude 3.5 Sonnet is available on API, Web, iOS.

    What can Claude 3.5 Sonnet do?

    Claude 3.5 Sonnet provides code generation, AI chat, agentic/autonomous mode. Key features include: 200K token context window with text and image inputs, Strong coding and multi-step reasoning performance, Tool use/function calling and structured outputs.

    Related Articles

    Pricing

    API on-demand

    $3 per 1M input tokens; $15 per 1M output tokens
    • Anthropic API access
    • Claude.ai and Claude iOS with higher limits on Pro and Team

    Company

    Name
    Anthropic
    Founded
    2021
    Location
    San Francisco, CA

    Links