GPT 5.6 Luna vs Claude Opus 4.6
OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.
Anthropic's previous flagship for complex coding and professional work.
No captured outputs for these models yet.
Frequently Asked Questions: GPT 5.6 Luna vs Claude Opus 4.6▼
Which is better, GPT 5.6 Luna or Claude Opus 4.6?
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Both GPT 5.6 Luna and Claude Opus 4.6 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Which is cheaper, GPT 5.6 Luna or Claude Opus 4.6?
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GPT 5.6 Luna has a lower blended cost. GPT 5.6 Luna: $1.00 input / $6.00 output. Claude Opus 4.6: $5.00 input / $25.00 output.
Which has a larger context window, GPT 5.6 Luna or Claude Opus 4.6?
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GPT 5.6 Luna has a larger context window: GPT 5.6 Luna supports 1.1M tokens vs Claude Opus 4.6 at 1M tokens.
Do both GPT 5.6 Luna and Claude Opus 4.6 support vision?
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Yes, both GPT 5.6 Luna and Claude Opus 4.6 support vision/image input.
What are the key differences between GPT 5.6 Luna and Claude Opus 4.6?
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Key differences: GPT 5.6 Luna is significantly cheaper. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 5.6 Luna and Claude Opus 4.6 for free on idapt.app to see which performs better for your specific needs.