How much does Claude Sonnet 5 cost?

Claude Sonnet 5 is billed pay-as-you-go at $1.59 per 1M input tokens and $7.97 per 1M output tokens. There is no subscription — you only pay for what you use.

What can Claude Sonnet 5 do?

Claude Sonnet 5 supports Reasoning, Prompt caching.

Is Claude Sonnet 5 free to use?

Claude Sonnet 5 is a paid, pay-as-you-go model — no subscription, you are only charged for usage.

How do I use Claude Sonnet 5 via the API?

Claude Sonnet 5 is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID claude-sonnet-5 with your Api.Airforce API key.

Who makes Claude Sonnet 5?

Claude Sonnet 5 is Anthropic's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

AnthropicPaidOperational

Claude Sonnet 5

API model name: claude-sonnet-5

Claude Sonnet 5 is Anthropic's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning, Prompt caching. It is priced at $1.59 per million input tokens and $7.97 per million output tokens. That is below the provider's $3.00 official input rate. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

Get an API key View pricing

Pricing

Input / 1M tokens

$1.59

Output / 1M tokens

$7.97

Cache read / 1M tokens

$0.16

Cache write / 1M tokens

$1.98

Official input rate

$3.00

Official output rate

$15.00

Api.Airforce price vs. the provider's official rate.

Specifications

Provider: Anthropic
Type: chat model
Prompt caching: Supported

Capabilities

ReasoningPrompt caching

What is Claude Sonnet 5 used for?

Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
Complex reasoning — math, coding and step-by-step problem solving.

Claude Sonnet 5 vs. similar models

Model	Intelligence	Context	Input / 1M	Output / 1M
Claude Sonnet 5	—	—	$1.59	$7.97
Claude Fable 5	64.9	—	$7.00	$35.00
Claude Haiku 4.5	—	200K	$0.30	$1.80
Claude Opus 4	—	—	—	—

Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.

Claude Sonnet 5 — frequently asked questions

How much does Claude Sonnet 5 cost?: Claude Sonnet 5 is billed pay-as-you-go at $1.59 per 1M input tokens and $7.97 per 1M output tokens. There is no subscription — you only pay for what you use.
What can Claude Sonnet 5 do?: Claude Sonnet 5 supports Reasoning, Prompt caching.
Is Claude Sonnet 5 free to use?: Claude Sonnet 5 is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use Claude Sonnet 5 via the API?: Claude Sonnet 5 is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID claude-sonnet-5 with your Api.Airforce API key.
Who makes Claude Sonnet 5?: Claude Sonnet 5 is Anthropic's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

All models·Quickstart·Chat API reference

Use Claude Sonnet 5 via the API

OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass claude-sonnet-5 as the model.

cURL

curl https://api.airforce/v1/chat/completions \
  -H "Authorization: Bearer $AIRFORCE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-5",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'

Python

from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
    model="claude-sonnet-5",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
  model: "claude-sonnet-5",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);