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GPT 6 Luna Pro vs Gemma 2 27B

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

Second-generation open model from Google DeepMind.

578K ctx$0.65/$0.65 per M#72/92
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
Cheaper69%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—
Math
Math Problems—Competition Math—
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Capability
CapabilityECI56.8
Reasoning & Knowledge
Graduate Science36.5%
Math
Math Problems27.9%Competition Math1.4%
Specs
1.1M
Context
128K
Max output
Sep 2026
Released
8K
Context
2K
Max output
Jul 2024
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input85%$0.10/M tokens
Output23%$0.50/M tokens
Cache read$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$0.65/M tokens
Output$0.65/M tokens
Chat with GPT 6 Luna ProGo to model
Chat with Gemma 2 27BGo to model
Frequently Asked Questions: GPT 6 Luna Pro vs Gemma 2 27B▼

Which is better, GPT 6 Luna Pro or Gemma 2 27B?

▼

Both GPT 6 Luna Pro and Gemma 2 27B 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 Gemma 2 27B?

▼

GPT 6 Luna Pro has a lower blended cost. GPT 6 Luna Pro: $0.10 input / $0.50 output. Gemma 2 27B: $0.65 input / $0.65 output.

Which has a larger context window, GPT 6 Luna Pro or Gemma 2 27B?

▼

GPT 6 Luna Pro has a larger context window: GPT 6 Luna Pro supports 1.1M tokens vs Gemma 2 27B at 8K tokens.

Do both GPT 6 Luna Pro and Gemma 2 27B support vision?

▼

GPT 6 Luna Pro supports vision/image input, but Gemma 2 27B does not.

What are the key differences between GPT 6 Luna Pro and Gemma 2 27B?

▼

Key differences: GPT 6 Luna Pro is significantly cheaper; only GPT 6 Luna Pro supports vision input; only GPT 6 Luna Pro offers extended reasoning mode. 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 Gemma 2 27B for free on idapt.app to see which performs better for your specific needs.

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