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anthropic
anthropic/claude-opus-5.5

anthropic/claude-opus-5.5

Release date: 2026-09-22

1,000,000 context · $4.00/M input tokens · $20.00/M output tokens

Claude Opus 5.5 supports coding, document analysis, and multi-step tasks with text and image inputs.

Pricing

Pay-per-use

No upfront costs, pay only for what you use

Input$4.00 / M Tokens
Output$20.00 / M Tokens
Cache Read$0.20 / M Tokens
Cache Write$5.00 / M Tokens

Try the model

anthropic/claude-opus-5.5
Online
anthropic
Hi! I am a helpful AI assistant. What can I do for you?
Ready to use this model in a local coding agent?Agent setup

API Usage

Use the following code examples to integrate with our 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: 2,
});

try {
  const response = await client.chat.completions.create({
    model: 'anthropic/claude-opus-5.5',
    messages: [{ role: 'user', content: 'Hello!' }],
  });
  console.log(response.choices[0]?.message?.content ?? '');
} catch (error) {
  console.error('LLM request failed:', error);
  process.exitCode = 1;
}

Model Introduction

Anthropic: Claude Opus 5.5

Claude Opus 5.5 supports coding, document analysis, and multi-step tasks with text and image inputs.

API

Use model anthropic/claude-opus-5.5 with https://llm.wavespeed.ai/v1/chat/completions.

Adaptive thinking is always enabled. Use automatic tool selection; forced tool calls and manual thinking budgets are not supported.

Pricing

Standard input: $4 per million tokens. Output: $20 per million tokens. Cache reads: $0.2 per million tokens.

Info

Provideranthropic
Typellm

Supported Functionality

Input
TextImage
Output
Text
Context1,000,000
Max Output128,000
Vision✓ Supported
Function Calling✓ Supported

API Access Guide

Base URLhttps://llm.wavespeed.ai/v1
API Endpointchat/completions
Model IDanthropic/claude-opus-5.5

Claude Opus 5.5 API

anthropic/claude-opus-5.5

Claude Opus 5.5 supports coding, document analysis, and multi-step tasks with text and image inputs.

Input

$4 /M

Output

$20 /M

Context

1000K

Max Output

128K

Vision

Supported

Tool Use

Supported

Try Claude Opus 5.5 on WaveSpeedAI

Access Claude Opus 5.5 through our unified API — OpenAI-compatible, no cold starts, transparent pricing.

Frequently Asked Questions about Claude Opus 5.5

How much does Claude Opus 5.5 cost via the API?+

Pricing on WaveSpeedAI: $4.00 per million input tokens and $20.00 per million output tokens. Prompt caching and batch processing are billed separately and reduce effective cost on long, repetitive workloads.

What is the context window of Claude Opus 5.5?+

Claude Opus 5.5 supports up to 1000K tokens of context with up to 128K tokens of output per request.

Is Claude Opus 5.5 OpenAI-compatible?+

WaveSpeedAI exposes Claude Opus 5.5 at https://llm.wavespeed.ai/v1 through the OpenAI-compatible Chat Completions interface. Most OpenAI SDK clients work by changing the base URL and API key; optional fields depend on the selected model.

How do I get started with Claude Opus 5.5?+

Sign in to WaveSpeedAI, create an API key in Access Keys, then send a request to https://llm.wavespeed.ai/v1/chat/completions with the model id shown above. Check the current model catalog for availability, capabilities, and pricing.

Related LLM APIs

Anthropic: Claude Opus 5.5 API Pricing | WaveSpeedAI