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Claude Sonnet 5.5

Claude Sonnet 5.5 API pricing, supported protocols, and request examples on RequestBeam.

Get an API key
Model ID
claude-sonnet-5-5
Publisher
Anthropic
Availability
Available
Protocols
HTTP, Chat Completions, Messages

Pricing and billing

Compare APIs

0-1M input tokens

Official price

Input
$2.0000 /M
Output
$10.0000 /M
Cache input
$0.1000 /M
Cache write (5m)
$2.5000 /M
Cache write (1h)
$4.0000 /M

Our price Save 45%

Input
$1.1000 /M
Output
$5.5000 /M
Cache input
$0.0550 /M
Cache write (5m)
$1.3750 /M
Cache write (1h)
$2.2000 /M

API requests

API documentation

Requests use your API key and account balance. Model access is determined by your API key; check GET /v1/models before sending a paid request.

Chat Completions

POST /v1/chat-completions

curl --request POST 'https://api.requestbeam.com/v1/chat-completions' \
  --header "Authorization: Bearer $REQUESTBEAM_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "claude-sonnet-5-5",
  "messages": [
    {
      "role": "user",
      "content": "Hello, introduce yourself in one sentence."
    }
  ],
  "stream": false
}'

Messages

POST /anthropic/v1/messages

curl --request POST 'https://api.requestbeam.com/anthropic/v1/messages' \
  --header "Authorization: Bearer $REQUESTBEAM_API_KEY" \
  --header 'Content-Type: application/json' \
  --header 'anthropic-version: 2023-06-01' \
  --data '{
  "model": "claude-sonnet-5-5",
  "messages": [
    {
      "role": "user",
      "content": "Hello, introduce yourself in one sentence."
    }
  ],
  "stream": false,
  "max_tokens": 4096
}'