Anthropic: Claude Opus 4.7 API
Claude Opus 4.7 is Anthropic's most advanced flagship model, specifically engineered for complex agentic reasoning, autonomous software engineering, and high-fidelity multimodal understanding. It introduces a groundbreaking "Self-Verification" mechanism, allowing the model to proactively audit its own logical plans and catch errors before execution. With its upgraded vision system supporting up to 3.75MP resolution, it can perceive technical diagrams and UI screenshots with 1:1 pixel precision. In 2026, Opus 4.7 is widely regarded as the industry gold standard for long-horizon projects that require sustained focus, literal instruction-following, and deep cognitive effort across massive 1M-token codebases.
- Context window: 1,000,000 tokens
- Max output: 128,000 tokens
- Input: text, image
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2026-04-15
- Knowledge cutoff: 2025-11-30
Frequently Asked Questions
What is the context window of Claude Opus 4.7?
Claude Opus 4.7 supports a context window of up to 1,000,000 tokens.
Does Claude Opus 4.7 support function calling?
Yes. Claude Opus 4.7 supports tool / function calling.
Does Claude Opus 4.7 support reasoning?
Yes. Claude Opus 4.7 is a reasoning-capable model.
What is the knowledge cutoff of Claude Opus 4.7?
The knowledge cutoff of Claude Opus 4.7 is 2025-11-30.