Gemini 3.1 Pro vs Grok Build 0.1
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 3.1 Pro and Grok Build 0.1.
Gemini 3.1 Pro
Google's premiere multi-modal model featuring a massive 2 million token context window. Engineered for deep code analysis, video indexing, and long-context reasoning.
Grok Build 0.1
Grok Build 0.1 is xAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...
Technical Specifications
| Specification | Gemini 3.1 Pro | Grok Build 0.1 |
|---|---|---|
| Provider | xAI | |
| Context Window | 2,000,000 tokens | 256,000 tokens |
| Agent Suitability | 93/100 | N/A |
| Time to First Token (TTFT) | 420 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2026-04-20 | 2026-05-20 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 3.1 Pro
$2.00
Grok Build 0.1
$1.00
Output Price per Million Tokens
Gemini 3.1 Pro
$12.00
Grok Build 0.1
$2.00
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Gemini 3.1 Pro Quirks & Gotchas
- ▸Best model for massive context — 2M token window is class-leading
- ▸Tool calling requires explicit schema definition in Google AI Studio
Grok Build 0.1 Quirks & Gotchas
No developer gotchas reported.