Google: Gemini 3.1 Pro Preview vs xAI: Grok 4.5

Side-by-side pricing, context window, and capabilities — try both on ChatLima.

Google: Gemini 3.1 Pro Preview

Premium

Description

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

Strengths

  • Multimodal understanding with text and image support
  • Large context window (1049k tokens)

Best For

Image and document understanding

xAI: Grok 4.5

Premium

Description

Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

Strengths

  • Multimodal understanding with text and image support
  • Large context window (500k tokens)

Best For

Image and document understanding

FeatureGoogle: Gemini 3.1 Pro PreviewxAI: Grok 4.5
ProviderOpenRouterOpenRouter
Context Length1,048,576 tokens500,000 tokens
Input Price$2.00/M$2.00/M
Output Price$12.00/M$6.00/M
Vision SupportYesYes
Higher costYesYes
Capabilities
TextVision
TextVision