Claude Opus 5.5

Claude Opus 5.5 is Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It's developed by Anthropic and offers 1,000,000 tokens of context with balanced response times. Available now on JustSimpleChat.

Claude Opus 5.5 costs $4 per million input tokens and $20 per million output tokens. You can use it on JustSimpleChat with flexible pricing options. Check our pricing page for current rates.

Claude Opus 5.5 supports 1,000,000 input tokens and 128,000 output tokens. This large context window makes it ideal for analyzing long documents, codebases, and extensive conversations.

Claude Opus 5.5 is classified as balanced speed. This means it's balanced, offering a good mix of speed and thoughtful responses. Perfect for complex reasoning, detailed analysis, and tasks requiring careful consideration.

Claude Opus 5.5 excels at data analysis and research, analyzing images and visual content, working with text, images, and other media, integrating with external tools and APIs. As a premium model, it delivers exceptional quality for demanding applications.

Claude Opus 5.5 can assist with coding-related questions and provide guidance on programming concepts. For advanced code generation and execution, consider models with dedicated coding capabilities available on JustSimpleChat.

JustSimpleChat has a free plan with a daily message allowance; Claude Opus 5.5 itself unlocks on a paid plan. Sign up free to start, and upgrade only if you need more.

Getting started with Claude Opus 5.5 is easy: 1) Sign up or log in to JustSimpleChat, 2) Open the chat interface, 3) Select Claude Opus 5.5 from the model picker, and 4) Start chatting! No complex setup required - just choose and use.

Claude Opus 5.5 supports analysis, vision, multimodal, function calling, tool use, structured output, and more. This makes it a versatile choice for a wide range of AI-powered tasks and applications.

Claude Opus 5.5 is part of Anthropic's model lineup. On JustSimpleChat, you can compare it side by side with hundreds of other models from providers like OpenAI, Google and Anthropic to find the best fit for your needs.