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GPT 6 Luna Pro vs GPT 5 Mini

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

Compact GPT-5 variant balancing speed and intelligence.

78400K ctx$0.25/$2.00 per M#33/92
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
Cheaper71%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Math Problems—Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—
Reasoning
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Capability
CapabilityECI78.0
Reasoning & Knowledge
Graduate Science75.0%Factual Recall21.6%
Math
Math Problems97.8%Competition Math86.7%Research Math27.2%
Coding
Real-World Coding64.7%
Agentic
Terminal Tasks31.9%Novel Reasoning4.4%
Specs
1.1M
Context
128K
Max output
Sep 2026
Released
400K
Context
128K
Max output
Aug 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input60%$0.10/M tokens
Output75%$0.50/M tokens
Cache read60%$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$0.25/M tokens
Output$2.00/M tokens
Cache read$0.02/M tokens
Web search$0.01/search
Chat with GPT 6 Luna ProGo to model
Chat with GPT 5 MiniGo to model
Frequently Asked Questions: GPT 6 Luna Pro vs GPT 5 Mini▼

Which is better, GPT 6 Luna Pro or GPT 5 Mini?

▼

Both GPT 6 Luna Pro and GPT 5 Mini 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 GPT 5 Mini?

▼

GPT 6 Luna Pro has a lower blended cost. GPT 6 Luna Pro: $0.10 input / $0.50 output. GPT 5 Mini: $0.25 input / $2.00 output.

Which has a larger context window, GPT 6 Luna Pro or GPT 5 Mini?

▼

GPT 6 Luna Pro has a larger context window: GPT 6 Luna Pro supports 1.1M tokens vs GPT 5 Mini at 400K tokens.

Do both GPT 6 Luna Pro and GPT 5 Mini support vision?

▼

Yes, both GPT 6 Luna Pro and GPT 5 Mini support vision/image input.

What are the key differences between GPT 6 Luna Pro and GPT 5 Mini?

▼

Key differences: GPT 6 Luna Pro is significantly cheaper. 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 GPT 5 Mini for free on idapt.app to see which performs better for your specific needs.

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