Claude Opus 4.6
Claude Opus 4.6 is an AI model developed by Anthropic designed for complex coding and professional workflows. It supports a large context window and multimodal inputs, including text, images, and files, while offering advanced reasoning and tool-calling capabilities.
Claude Opus 4.6 specs and pricing
- Provider: Anthropic
- Released: February 4, 2026
- Context window: 1M tokens
- Max output: 128K tokens
- Input: text, images, files
- Output: text
- Price: $5.00 input / $25 output per 1M tokens
- Reasoning: yes
- Tool calling: yes
What Claude Opus 4.6 is good at
- Managing complex coding projects
- Analyzing extensive documents or files
- Automating multi-step professional workflows
To-dos to try with Claude Opus 4.6
- Analyze a large codebase to identify potential security vulnerabilities
- Review a collection of technical documents and summarize key project requirements
- Execute a multi-step research task by reading provided files and outputting a structured report
FAQ
- Who developed Claude Opus 4.6? Claude Opus 4.6 is developed by Anthropic.
- Can this model process images and files? Yes, the model accepts text, images, and files as input.
- How much does Claude Opus 4.6 cost? Claude Opus 4.6 costs $5.00 per million input tokens and $25 per million output tokens through OpenRouter. In todo.is a typical agent step costs about 17.5 credits ($1 = 100 credits).
- What is the context window of Claude Opus 4.6? Claude Opus 4.6 can read up to 1M tokens at once and write up to 128K tokens in one reply.
- Can I use Claude Opus 4.6 without coding? Yes. In todo.is you pick Claude Opus 4.6 as your agent's model and write to-dos in plain words, on the web, the Android app, WhatsApp or Telegram. No API key needed: credits are included, or you can bring your own key.
JavaScript is required to use the todo.is app.