claude-sonnet-5 API

Availability and pricing

Published contract · ready

$1.92 per 1 million input tokens; $9.6 per 1 million output tokens

Prices shown use the public default price group. Your account price and the request quote determine the amount reserved and charged.

Published verification: 2026-10-05T20:32:08.970Z

Pricing revision: rev_143340ba-21eb-425b-861f-0d5354cb9d57

Supported inputs and limits

messages

max Input Tokens

8192

max Output Tokens

1024

default Output Tokens

256

tools

Not enabled

multimodal Input

Not enabled

reasoning

Not enabled

cache

Not enabled

conversation

Enabled

structured Output

Not enabled

compact

Not enabled

streaming

Enabled

{
  "kind": "messages",
  "modes": [
    "chat"
  ],
  "qualities": [
    "standard"
  ],
  "units": [
    1
  ],
  "aspects": [],
  "resolutions": [],
  "maxReferences": 0,
  "maxInputTokens": 8192,
  "maxOutputTokens": 1024,
  "defaultOutputTokens": 256,
  "protocols": [
    "messages"
  ]
}

Limitations

• Draft only until live verification and actual cost reconciliation pass. The single cache-write component uses the highest published TTL rate; TTL-specific pricing is not advertised. Tools, vision, explicit reasoning, structured output and compaction are disabled pending dedicated live evidence.

API request example

Use your own API key. This is a request body; asynchronous tasks also require checking their status and output.

POST /v1/messages
{
  "model": "anthropic/claude-sonnet-5",
  "max_tokens": 256,
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}

Try this model

Sign in and check your available credits before sending a request.