Claude Sonnet 5.5 | Anthropic LLM API Pricing & Performance

Name: Claude Sonnet 5.5 API
Brand: anthropic
Price: 2 USD
Availability: InStock

anthropic/claude-sonnet-5.5

Data di rilascio: 2026-09-29

1,000,000 context · $2.00/M input tokens · $10.00/M output tokens

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Prezzi

Pay-per-use

Nessun costo iniziale, paga solo per ciò che usi

Input$2.00 / M Tokens

Output$10.00 / M Tokens

Cache Read$0.10 / M Tokens

Cache Write$2.50 / M Tokens

Prova il modello

anthropic/claude-sonnet-5.5

Online

Ciao! Sono un assistente IA utile. Come posso aiutarti?

Pronto a usare questo modello in un coding agent locale?Setup agent

Utilizzo API

Usa i seguenti esempi di codice per integrare la nostra API:

import OpenAI from 'openai';

if (!process.env.WAVESPEED_API_KEY) throw new Error('Set WAVESPEED_API_KEY');
const client = new OpenAI({
  apiKey: process.env.WAVESPEED_API_KEY,
  baseURL: 'https://llm.wavespeed.ai/v1',
  timeout: 120_000,
  maxRetries: 0,
});

try {
  const response = await client.chat.completions.create({
    model: 'anthropic/claude-sonnet-5.5',
    messages: [{ role: 'user', content: 'Hello!' }],
  });
  const body = response as typeof response & { error?: { message?: string } };
  if (body.error) throw new Error(body.error.message || 'LLM generation failed');
  console.log(response.choices[0]?.message?.content ?? '');
} catch (error) {
  console.error('LLM request failed:', error);
  process.exitCode = 1;
}

import OpenAI from 'openai';

if (!process.env.WAVESPEED_API_KEY) throw new Error('Set WAVESPEED_API_KEY');
const client = new OpenAI({
  apiKey: process.env.WAVESPEED_API_KEY,
  baseURL: 'https://llm.wavespeed.ai/v1',
  timeout: 120_000,
  maxRetries: 0,
});

try {
  const response = await client.chat.completions.create({
    model: 'anthropic/claude-sonnet-5.5',
    messages: [{ role: 'user', content: 'Hello!' }],
  });
  const body = response as typeof response & { error?: { message?: string } };
  if (body.error) throw new Error(body.error.message || 'LLM generation failed');
  console.log(response.choices[0]?.message?.content ?? '');
} catch (error) {
  console.error('LLM request failed:', error);
  process.exitCode = 1;
}

Introduzione al modello

Anthropic: Claude Sonnet 5.5

This model is available through the WaveSpeed AI OpenAI-compatible API for chat completions and compatible application workflows.

Why It Looks Great

text+image+file->text architecture for Text, Image, file to Text workloads
1000000 context window for long prompts, document analysis, and multi-turn workflows
Vision input support for image understanding and multimodal tasks
Function calling and tool-use support for agentic application workflows
Structured output support for JSON responses and schema-constrained generation
Reasoning controls available through supported parameters

Key Features

Context Window: 1000000 tokens
Max Input: 872000 tokens
Max Output: 128000 tokens
Vision: Supported
Function Calling: Supported
Structured Outputs: Supported
Image Generation: Not listed
Audio Input: Not listed
Supported Parameters: include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, stop, structured_outputs, tool_choice, tools, verbosity

Specifications

Specification	Value
Provider	anthropic
Model Type	Chat Completions model
Architecture	text+image+file->text
Context Window	1000000 tokens
Max Input	872000 tokens
Max Output	128000 tokens
Input	Text, Image, file
Output	Text
Vision	Supported
Function Calling	Supported
Structured Outputs	Supported
Release Date	September 29, 2026

How to Use

Write your prompt - describe the task, provide context, and specify the desired output format.
Submit - the model processes your request and returns the response.

API Integration

Base URL: https://llm.wavespeed.ai/v1 API Endpoint: chat/completions Model ID: anthropic/claude-sonnet-5.5

API Usage

Python SDK

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

response = client.chat.completions.create(
    model="anthropic/claude-sonnet-5.5",
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.choices[0].message.content)

cURL

curl https://llm.wavespeed.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "anthropic/claude-sonnet-5.5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Notes

Model: anthropic/claude-sonnet-5.5
Provider: anthropic

Info

Provideranthropic

Tipollm

Funzionalità supportate

Input

TestoImmagine

Output

Testo

Contesto1,000,000

Output massimo128,000

Vision✓ Supportato

Function Calling✓ Supportato

Guida all'accesso API

Base URLhttps://llm.wavespeed.ai/v1

API Endpointchat/completions

ID modelloanthropic/claude-sonnet-5.5

Domande frequenti su Claude Sonnet 5.5

Quanto costa Claude Sonnet 5.5 via API?+

Prezzi su WaveSpeedAI: $2.00 per milione di token in input e $10.00 per milione di token in output. Prompt caching e batch processing sono fatturati separatamente e riducono il costo effettivo su carichi lunghi e ripetitivi.

Qual è la context window di Claude Sonnet 5.5?+

Claude Sonnet 5.5 supporta fino a 1000K token di contesto e fino a 128K token di output per richiesta.

Claude Sonnet 5.5 è compatibile con OpenAI?+

WaveSpeedAI espone Claude Sonnet 5.5 su https://llm.wavespeed.ai/v1 tramite l’interfaccia Chat Completions compatibile con OpenAI. Per la maggior parte dei client OpenAI SDK basta cambiare base URL e API key; i campi opzionali dipendono dal modello.

Come si inizia con Claude Sonnet 5.5?+

Accedi a WaveSpeedAI, crea una API key in Access Keys e invia una richiesta a https://llm.wavespeed.ai/v1/chat/completions con il model id mostrato sopra. Consulta il catalogo attuale per disponibilità, funzionalità e prezzi.