AnthropicFastHigh

Claude 3.7 Sonnet

Enhanced Claude 3.7 Sonnet with improved reasoning and coding capabilities. A strong mid-tier model offering reliable performance across a wide range of tasks.

3 credits

per 1K tokens (avg)

200K context window

16K max output tokens

Vision capabilities

Extended thinking mode

Strong coding abilities

Streaming support

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txt

Model Specifications

Context Window

200K

tokens

Max Output

16K

tokens

Training Cutoff

2024-11

Compatible SDK

Anthropic

Capabilities

Vision

Function Calling

Streaming

JSON Mode

System Prompt

Token Pricing (per 1M tokens)

Token Type	Credits	USD Equivalent
Input Tokens	6,000	$6.00
Output Tokens	30,000	$30.00
Cached Tokens	600	$0.60

* 1 credit ≈ $0.001 (actual charges may vary based on usage)

Quick Start

curl -X POST "https://api.core.today/llm/anthropic/v1/messages" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "claude-3-7-sonnet",
  "max_tokens": 3000,
  "messages": [
    {
      "role": "user",
      "content": "Write a Python async function that fetches multiple URLs concurrently using aiohttp and returns results as a dictionary mapping URL to response status and body."
    }
  ],
  "temperature": 0.3
}'

Parameters

Parameter	Type	Required	Default	Description
`messages`	array	Yes	-	Array of message objects with role and content
`model`	string	Yes	claude-3-7-sonnet	Model identifier
`temperature`	float	No	1.0	Sampling temperature (0-1)
`max_tokens`	integer	Yes	-	Maximum tokens in response (required, up to 16384)
`stream`	boolean	No	false	Enable streaming responses
`system`	string	No	-	System prompt for setting behavior
`top_p`	float	No	0.999	Nucleus sampling parameter (0-1)

Examples

Code Generation

Generate code with Claude 3.7 Sonnet

curl -X POST "https://api.core.today/llm/anthropic/v1/messages" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "claude-3-7-sonnet",
  "max_tokens": 3000,
  "messages": [
    {
      "role": "user",
      "content": "Write a Python async function that fetches multiple URLs concurrently using aiohttp and returns results as a dictionary mapping URL to response status and body."
    }
  ],
  "temperature": 0.3
}'

Data Analysis

Analyze data with structured output

curl -X POST "https://api.core.today/llm/anthropic/v1/messages" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "claude-3-7-sonnet",
  "max_tokens": 2000,
  "system": "You are a data analyst. Provide insights in a structured format.",
  "messages": [
    {
      "role": "user",
      "content": "Analyze the following sales data and identify trends, anomalies, and actionable recommendations: [sales data]"
    }
  ]
}'