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anthropic/claude-sonnet-4-5

Claude.Color

Anthropic: claude-sonnet-4-5

Claude Sonnet 4.5 is a strong earlier Sonnet release for coding, agents, computer use, and long-running tasks.

Modetext → text
Input price$3 per M tokens
Output price$15 per M tokens
Context length
Weekly usage1.1K tokens
Listed at

Anthropic

Latency
Throughput
Upload rate
Context length
Max output
Input price$3per 1M tokens
Output price$15per 1M tokens
Cache read$0.8999999999999999per 1M tokens
Cache write$11.25per 1M tokens

Performance

Avg TPS
Avg latency
Avg success rate
TPS
TTFT
Latency
Success rate

Success rate

Speed

Code Example

curl ${API_BASE_URL}/v1/messages \
  -H "Authorization: Bearer <YOUR_API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-5",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Replace <YOUR_API_KEY> with the API key generated on your token management page.

Authentication

All requests must include the Authorization: Bearer <TOKEN> header.

Endpoint Path

POST
anthropic

Supported Parameters

ParameterTypeDefaultDescription

Rate Limits

GroupRPMTPMRPD

RPM = requests per minute, TPM = tokens per minute, RPD = requests per day. Limits apply by token group.

Pricing

GroupBilling typePrice summary
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens
Anthropic0%
Per call
Input price3per 1M tokens
Completion price15per 1M tokens
Cache read price0.8999999999999999per 1M tokens
Cache write price11.25per 1M tokens