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Claude Opus 3: Everything You Need to Know

Explore how Claude Opus 3 compares to GPT-4 and Gemini Ultra, and when you should use it.
Claude Opus 3: Everything You Need to Know
A
Aiden Smith
Mar 25, 2026 ・ 1 mins read

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

What Is Claude Opus 3?

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

Claude Opus 3 Capabilities

1. Advanced Reasoning and Analysis

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

2. Multimodal Understanding

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3. Long-Context Processing

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4. Code Generation and Review

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5. Nuanced Writing and Communication

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Claude Opus 3 vs. GPT-4 vs. Gemini Ultra

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` propstronger at extended reasoning, document analysis, and nuanced writing[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

Claude Opus 3 Limitations

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

When Should You Use Claude Opus 3?

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

Claude Opus 3 vs. Claude Opus 4

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Try Claude Opus 3 and Other AI Models with Chat Smith

[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` propChat Smith[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

Conclusion

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[@portabletext/react] Unknown block type "span", specify a component for it in the `components.types` prop

Frequently Asked Questions

1. Is Claude Opus 3 still available?

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2. What is the context window of Claude Opus 3?

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3. How does Claude Opus 3 compare to ChatGPT?

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4. Is Claude Opus 3 safe to use for sensitive tasks?

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