This page provides detailed pricing information for Anthropic’s models and features. All prices are in USD.

For the most current pricing information, please visit anthropic.com/pricing.

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Model pricing

The following table shows pricing for all Claude models across different usage tiers:

ModelBase Input Tokens5m Cache Writes1h Cache WritesCache Hits & RefreshesOutput Tokens
Claude Opus 4$15 / MTok$18.75 / MTok$30 / MTok$1.50 / MTok$75 / MTok
Claude Sonnet 4$3 / MTok$3.75 / MTok$6 / MTok$0.30 / MTok$15 / MTok
Claude Sonnet 3.7$3 / MTok$3.75 / MTok$6 / MTok$0.30 / MTok$15 / MTok
Claude Sonnet 3.5$3 / MTok$3.75 / MTok$6 / MTok$0.30 / MTok$15 / MTok
Claude Haiku 3.5$0.80 / MTok$1 / MTok$1.6 / MTok$0.08 / MTok$4 / MTok
Claude Opus 3$15 / MTok$18.75 / MTok$30 / MTok$1.50 / MTok$75 / MTok
Claude Haiku 3$0.25 / MTok$0.30 / MTok$0.50 / MTok$0.03 / MTok$1.25 / MTok

MTok = Million tokens. The “Base Input Tokens” column shows standard input pricing, “Cache Writes” and “Cache Hits” are specific to prompt caching, and “Output Tokens” shows output pricing.

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Feature-specific pricing

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Batch processing

The Batch API allows asynchronous processing of large volumes of requests with a 50% discount on both input and output tokens.

ModelBatch inputBatch output
Claude Opus 4$7.50 / MTok$37.50 / MTok
Claude Sonnet 4$1.50 / MTok$7.50 / MTok
Claude Sonnet 3.7$1.50 / MTok$7.50 / MTok
Claude Sonnet 3.5$1.50 / MTok$7.50 / MTok
Claude Haiku 3.5$0.40 / MTok$2 / MTok
Claude Opus 3$7.50 / MTok$37.50 / MTok
Claude Haiku 3$0.125 / MTok$0.625 / MTok

For more information about batch processing, see our batch processing documentation.

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Tool use pricing

Tool use requests are priced based on:

  1. The total number of input tokens sent to the model (including in the tools parameter)
  2. The number of output tokens generated
  3. For server-side tools, additional usage-based pricing (e.g., web search charges per search performed)

Client-side tools are priced the same as any other Claude API request, while server-side tools may incur additional charges based on their specific usage.

The additional tokens from tool use come from:

  • The tools parameter in API requests (tool names, descriptions, and schemas)
  • tool_use content blocks in API requests and responses
  • tool_result content blocks in API requests

When you use tools, we also automatically include a special system prompt for the model which enables tool use. The number of tool use tokens required for each model are listed below (excluding the additional tokens listed above). Note that the table assumes at least 1 tool is provided. If no tools are provided, then a tool choice of none uses 0 additional system prompt tokens.

ModelTool choiceTool use system prompt token count
Claude Opus 4auto, none
any, tool		346 tokens
313 tokens
Claude Sonnet 4auto, none
any, tool		346 tokens
313 tokens
Claude Sonnet 3.7auto, none
any, tool		346 tokens
313 tokens
Claude Sonnet 3.5 (Oct)auto, none
any, tool		346 tokens
313 tokens
Claude Sonnet 3.5 (June)auto, none
any, tool		294 tokens
261 tokens
Claude Haiku 3.5auto, none
any, tool		264 tokens
340 tokens
Claude Opus 3auto, none
any, tool		530 tokens
281 tokens
Claude Sonnet 3auto, none
any, tool		159 tokens
235 tokens
Claude Haiku 3auto, none
any, tool		264 tokens
340 tokens

These token counts are added to your normal input and output tokens to calculate the total cost of a request.

For current per-model prices, refer to our model pricing section above.

For more information about tool use implementation and best practices, see our tool use documentation.

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Specific tool pricing

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Bash tool

The bash tool adds 245 input tokens to your API calls.

Additional tokens are consumed by:

  • Command outputs (stdout/stderr)
  • Error messages
  • Large file contents

See tool use pricing for complete pricing details.

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Code execution tool

The code execution tool usage is tracked separately from token usage. Execution time is a minimum of 5 minutes. If files are included in the request, execution time is billed even if the tool is not used due to files being preloaded onto the container.

Pricing: $0.05 per session-hour.

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Text editor tool

The text editor tool uses the same pricing structure as other tools used with Claude. It follows the standard input and output token pricing based on the Claude model you’re using.

In addition to the base tokens, the following additional input tokens are needed for the text editor tool:

ToolAdditional input tokens
text_editor_20250429 (Claude 4)700 tokens
text_editor_20250124 (Claude Sonnet 3.7)700 tokens
text_editor_20241022 (Claude Sonnet 3.5)700 tokens

See tool use pricing for complete pricing details.

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Web search tool

Web search usage is charged in addition to token usage:

"usage": {
  "input_tokens": 105,
  "output_tokens": 6039,
  "cache_read_input_tokens": 7123,
  "cache_creation_input_tokens": 7345,
  "server_tool_use": {
    "web_search_requests": 1
  }
}

Web search is available on the Anthropic API for $10 per 1,000 searches, plus standard token costs for search-generated content. Web search results retrieved throughout a conversation are counted as input tokens, in search iterations executed during a single turn and in subsequent conversation turns.

Each web search counts as one use, regardless of the number of results returned. If an error occurs during web search, the web search will not be billed.

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Computer use tool

Computer use follows the standard tool use pricing. When using the computer use tool:

System prompt overhead: The computer use beta adds 466-499 tokens to the system prompt

Computer use tool token usage:

ModelInput tokens per tool definition
Claude 4 / Sonnet 3.7735 tokens
Claude Sonnet 3.5683 tokens

Additional token consumption:

  • Screenshot images (see Vision pricing)
  • Tool execution results returned to Claude

If you’re also using bash or text editor tools alongside computer use, those tools have their own token costs as documented in their respective pages.

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Agent use case pricing examples

Understanding pricing for agent applications is crucial when building with Claude. These real-world examples can help you estimate costs for different agent patterns.

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Customer support agent example

When building a customer support agent, here’s how costs might break down:

Example calculation for processing 10,000 support tickets:

  • Average ~3,700 tokens per conversation
  • Using Claude Sonnet 4 at 3/MTokinput,3/MTok input, 15/MTok output
  • Total cost: ~$22.20 per 10,000 tickets

For a detailed walkthrough of this calculation, see our customer support agent guide.

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General agent workflow pricing

For more complex agent architectures with multiple steps:

  1. Initial request processing

    • Typical input: 500-1,000 tokens
    • Processing cost: ~$0.003 per request

  2. Memory and context retrieval

    • Retrieved context: 2,000-5,000 tokens
    • Cost per retrieval: ~$0.015 per operation

  3. Action planning and execution

    • Planning tokens: 1,000-2,000
    • Execution feedback: 500-1,000
    • Combined cost: ~$0.045 per action

For a comprehensive guide on agent pricing patterns, see our agent use cases guide.

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Cost optimization strategies

When building agents with Claude:

  1. Use appropriate models: Choose Haiku for simple tasks, Sonnet for complex reasoning
  2. Implement prompt caching: Reduce costs for repeated context
  3. Batch operations: Use the Batch API for non-time-sensitive tasks
  4. Monitor usage patterns: Track token consumption to identify optimization opportunities

For high-volume agent applications, consider contacting our enterprise sales team for custom pricing arrangements.

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Additional pricing considerations

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Rate limits

Rate limits vary by usage tier and affect how many requests you can make:

  • Tier 1: Entry-level usage with basic limits
  • Tier 2: Increased limits for growing applications
  • Tier 3: Higher limits for established applications
  • Tier 4: Maximum standard limits
  • Enterprise: Custom limits available

For detailed rate limit information, see our rate limits documentation.

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Volume discounts

Volume discounts may be available for high-volume users. These are negotiated on a case-by-case basis.

  • Standard tiers use the pricing shown above
  • Enterprise customers can contact sales for custom pricing
  • Academic and research discounts may be available

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Enterprise pricing

For enterprise customers with specific needs:

  • Custom rate limits
  • Volume discounts
  • Dedicated support
  • Custom terms

Contact our sales team at sales@anthropic.com or through the Anthropic Console to discuss enterprise pricing options.

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Billing and payment

  • Billing is calculated monthly based on actual usage
  • Payments are processed in USD
  • Credit card and invoicing options available
  • Usage tracking available in the Anthropic Console

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Frequently asked questions

How is token usage calculated?

Tokens are pieces of text that models process. As a rough estimate, 1 token is approximately 4 characters or 0.75 words in English. The exact count varies by language and content type.

Are there free tiers or trials?

New users receive a small amount of free credits to test the API. Contact sales for information about extended trials for enterprise evaluation.

How do discounts stack?

Batch API and prompt caching discounts can be combined. For example, using both features together provides significant cost savings compared to standard API calls.

What payment methods are accepted?

We accept major credit cards for standard accounts. Enterprise customers can arrange invoicing and other payment methods.

For additional questions about pricing, contact support@anthropic.com.