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GPT 6 Luna Pro vs DeepSeek V4 Pro (0813)

At a glance

OpenAI's GPT-6 Luna served in pro reasoning mode for the hardest problems.

1.1M ctx$0.10/$0.50 per M

The GA release of DeepSeek's open 1.6T-parameter MoE flagship for advanced reasoning and long-horizon agents.

1.0M ctx$0.66/$1.98 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper80%
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—
Agentic
Novel Reasoning—
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Reasoning & Knowledge
Graduate Science91.7%Factual Recall52.9%
Math
Competition Math98.6%
Agentic
Novel Reasoning61.3%
Specs
1.1M
Context
128K
Max output
Sep 2026
Released
1.0M
Context
256K
Max output
Aug 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input85%$0.10/M tokens
Output75%$0.50/M tokens
Cache read55%$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$0.66/M tokens
Output$1.98/M tokens
Cache read$0.02/M tokens
Chat with GPT 6 Luna ProGo to model
Chat with DeepSeek V4 Pro (0813)Go to model
Frequently Asked Questions: GPT 6 Luna Pro vs DeepSeek V4 Pro (0813)▼

Which is better, GPT 6 Luna Pro or DeepSeek V4 Pro (0813)?

▼

Both GPT 6 Luna Pro and DeepSeek V4 Pro (0813) 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 6 Luna Pro or DeepSeek V4 Pro (0813)?

▼

GPT 6 Luna Pro has a lower blended cost. GPT 6 Luna Pro: $0.10 input / $0.50 output. DeepSeek V4 Pro (0813): $0.66 input / $1.98 output.

Which has a larger context window, GPT 6 Luna Pro or DeepSeek V4 Pro (0813)?

▼

GPT 6 Luna Pro has a larger context window: GPT 6 Luna Pro supports 1.1M tokens vs DeepSeek V4 Pro (0813) at 1M tokens.

Do both GPT 6 Luna Pro and DeepSeek V4 Pro (0813) support vision?

▼

GPT 6 Luna Pro supports vision/image input, but DeepSeek V4 Pro (0813) does not.

What are the key differences between GPT 6 Luna Pro and DeepSeek V4 Pro (0813)?

▼

Key differences: GPT 6 Luna Pro is significantly cheaper; only GPT 6 Luna Pro supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

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 6 Luna Pro and DeepSeek V4 Pro (0813) for free on idapt.app to see which performs better for your specific needs.

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