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Grok Build 0.1 vs GPT 6 Luna Pro

At a glance

xAI's agentic build model for autonomous software engineering.

256K ctx$1.00/$2.00 per M

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
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-06-15
Coding
Real-World Coding70.8%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper84%
Coding
Real-World Coding—
Specs
256K
Context
128K
Max output
May 2026
Released
1.1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$1.00/M tokens
Output$2.00/M tokens
Cache read$0.20/M tokens
Web search50%$0.005/search
Live pricing, shown before you run
Input90%$0.10/M tokens
Output75%$0.50/M tokens
Cache read95%$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Chat with Grok Build 0.1Go to model
Chat with GPT 6 Luna ProGo to model
Frequently Asked Questions: Grok Build 0.1 vs GPT 6 Luna Pro▼

Which is better, Grok Build 0.1 or GPT 6 Luna Pro?

▼

Both Grok Build 0.1 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 is cheaper, Grok Build 0.1 or GPT 6 Luna Pro?

▼

GPT 6 Luna Pro has a lower blended cost. Grok Build 0.1: $1.00 input / $2.00 output. GPT 6 Luna Pro: $0.10 input / $0.50 output.

Which has a larger context window, Grok Build 0.1 or GPT 6 Luna Pro?

▼

GPT 6 Luna Pro has a larger context window: Grok Build 0.1 supports 256K tokens vs GPT 6 Luna Pro at 1.1M tokens.

Do both Grok Build 0.1 and GPT 6 Luna Pro support vision?

▼

Yes, both Grok Build 0.1 and GPT 6 Luna Pro support vision/image input.

What are the key differences between Grok Build 0.1 and GPT 6 Luna Pro?

▼

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 Grok Build 0.1 and GPT 6 Luna Pro for free on idapt.app to see which performs better for your specific needs.

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