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Gemini 3.8 Flash vs Grok Build 0.1

At a glance

Google's most intelligent Flash model, with significant gains over 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

1.0M ctx$0.75/$3.75 per M

xAI's agentic build model for autonomous software engineering.

256K ctx$1.00/$2.00 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
Coding
Real-World Coding—
Reasoning
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-06-15
Cheaper17%
Coding
Real-World Coding70.8%
Specs
1.0M
Context
66K
Max output
Sep 2026
Released
256K
Context
16K
Max output
May 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input25%$0.75/M tokens
Output$3.75/M tokens
Reasoning$3.75/M tokens
Cache read63%$0.07/M tokens
Cache write$0.04/M tokens
Image input$0.75/M tokens
Audio input$0.75/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$1.00/M tokens
Output47%$2.00/M tokens
Cache read$0.20/M tokens
Web search64%$0.005/search
Chat with Gemini 3.8 FlashGo to model
Chat with Grok Build 0.1Go to model
Frequently Asked Questions: Gemini 3.8 Flash vs Grok Build 0.1▼

Which is better, Gemini 3.8 Flash or Grok Build 0.1?

▼

Both Gemini 3.8 Flash and Grok Build 0.1 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, Gemini 3.8 Flash or Grok Build 0.1?

▼

Grok Build 0.1 has a lower blended cost. Gemini 3.8 Flash: $0.75 input / $3.75 output. Grok Build 0.1: $1.00 input / $2.00 output.

Which has a larger context window, Gemini 3.8 Flash or Grok Build 0.1?

▼

Gemini 3.8 Flash has a larger context window: Gemini 3.8 Flash supports 1M tokens vs Grok Build 0.1 at 256K tokens.

Do both Gemini 3.8 Flash and Grok Build 0.1 support vision?

▼

Yes, both Gemini 3.8 Flash and Grok Build 0.1 support vision/image input.

What are the key differences between Gemini 3.8 Flash and Grok Build 0.1?

▼

Gemini 3.8 Flash and Grok Build 0.1 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

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 Gemini 3.8 Flash and Grok Build 0.1 for free on idapt.app to see which performs better for your specific needs.

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