Anthropic: Claude Sonnet 5.5
Chatanthropic/claude-sonnet-5.5Claude Sonnet 5.5 is Anthropic's Sonnet-tier model, offering a balance of speed and intelligence for coding, reasoning, and agentic workloads. It supports text, image, and file inputs with text output, with a 1M-token context window and up to 128K output tokens, at a lower per-token price than Claude Opus 5.5.
Context Window
1M
Max Output Tokens
128K
Released
2026-09-28
Capabilities
VisionFunction CallingReasoningPrompt CachingWeb SearchPDF Input
Available Providers
Bedrock
Supported Protocols
openaianthropic
Providers
Bedrock
provider.type: "aws_bedrock"Input Tokens
$2/M
Output Tokens
$10/M
Cache Read
$0.2/M
Cache Write (5 min)
$2.5/M
Cache Write (1 hour)
$4/M
Web Search
$0.015/R
Protocols
openai
/v1/chat/completions/v1/responsesanthropic
Code Examples
import anthropicclient = anthropic.Anthropic(base_url="https://api.ofox.ai/anthropic",api_key="YOUR_OFOX_API_KEY",)message = client.messages.create(model="anthropic/claude-sonnet-5.5",max_tokens=1024,messages=[{"role": "user", "content": "Hello!"}],)print(message.content[0].text)
Uptime & Status
Related Models
Frequently Asked Questions
Anthropic: Claude Sonnet 5.5 on Ofox.ai costs $2/M per million input tokens and $10/M per million output tokens. Pay-as-you-go, no monthly fees.
Anthropic: Claude Sonnet 5.5 supports a context window of 1M tokens with max output of 128K tokens, allowing you to process large documents and maintain long conversations.
Simply set your base URL to https://api.ofox.ai/v1 and use your Ofox API key. The API is OpenAI-compatible โ just change the base URL and API key in your existing code.
Anthropic: Claude Sonnet 5.5 supports the following capabilities: Vision, Function Calling, Reasoning, Prompt Caching, Web Search, PDF Input. Access all features through the Ofox.ai unified API.