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Phi 4 Reasoning vs GPT 6 Luna Pro

At a glance

Microsoft's 14B open reasoning model that rivals much larger models.

33K ctx

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

1.1M ctx$0.10/$0.50 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
Sources:Epoch AI· as of 2026-10-02
Reasoning & Knowledge
Graduate Science56.1%
Math
Math Problems64.9%Competition Math13.8%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Reasoning & Knowledge
Graduate Science—
Math
Math Problems—Competition Math—
Specs
33K
Context
8K
Max output
—
Released
1.1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Pricing not available
Live pricing, shown before you run
Input$0.10/M tokens
Output$0.50/M tokens
Cache read$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Chat with Phi 4 ReasoningGo to model
Chat with GPT 6 Luna ProGo to model
Frequently Asked Questions: Phi 4 Reasoning vs GPT 6 Luna Pro▼

Which is better, Phi 4 Reasoning or GPT 6 Luna Pro?

▼

Both Phi 4 Reasoning and GPT 6 Luna Pro 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 has a larger context window, Phi 4 Reasoning or GPT 6 Luna Pro?

▼

GPT 6 Luna Pro has a larger context window: Phi 4 Reasoning supports 33K tokens vs GPT 6 Luna Pro at 1.1M tokens.

Do both Phi 4 Reasoning and GPT 6 Luna Pro support vision?

▼

GPT 6 Luna Pro supports vision/image input, but Phi 4 Reasoning does not.

What are the key differences between Phi 4 Reasoning and GPT 6 Luna Pro?

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Key differences: 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 Phi 4 Reasoning and GPT 6 Luna Pro for free on idapt.app to see which performs better for your specific needs.

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