GPT 5.6 Luna vs DeepSeek V3.1
OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.
Large hybrid reasoning model supporting thinking and non-thinking modes.
No captured outputs for these models yet.
Frequently Asked Questions: GPT 5.6 Luna vs DeepSeek V3.1▼
Which is better, GPT 5.6 Luna or DeepSeek V3.1?
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Both GPT 5.6 Luna and DeepSeek V3.1 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 DeepSeek V3.1?
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DeepSeek V3.1 has a lower blended cost. GPT 5.6 Luna: $1.00 input / $6.00 output. DeepSeek V3.1: $0.21 input / $0.79 output.
Which has a larger context window, GPT 5.6 Luna or DeepSeek V3.1?
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GPT 5.6 Luna has a larger context window: GPT 5.6 Luna supports 1.1M tokens vs DeepSeek V3.1 at 164K tokens.
Do both GPT 5.6 Luna and DeepSeek V3.1 support vision?
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GPT 5.6 Luna supports vision/image input, but DeepSeek V3.1 does not.
What are the key differences between GPT 5.6 Luna and DeepSeek V3.1?
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Key differences: DeepSeek V3.1 is significantly cheaper; only GPT 5.6 Luna supports vision input. 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 DeepSeek V3.1 for free on idapt.app to see which performs better for your specific needs.