Detailed comparison of Gemini and Grok AI models — pricing, context window, parameters, and more. Updated for 2026.
| Model | Context | Parameters | Input Price | Output Price | Tier |
|---|---|---|---|---|---|
| Google: Gemini 3.1 Flash Lite Preview | 1049K | N/A | $0.25 | $1.50 | standard |
| Google: Gemini 3.1 Pro Preview Custom Tools | 1049K | N/A | $2.00 | $12.00 | premium |
| Google: Gemini 3.1 Pro Preview | 1049K | N/A | $2.00 | $12.00 | premium |
| Google: Gemini 3 Flash Preview | 1049K | N/A | $0.50 | $3.00 | standard |
| Google: Gemini 2.5 Flash Lite Preview 09-2025 | 1049K | N/A | $0.10 | $0.40 | budget |
| Google: Gemini 2.5 Flash Lite | 1049K | N/A | $0.10 | $0.40 | budget |
| Google: Gemini 2.5 Flash | 1049K | N/A | $0.30 | $2.50 | standard |
| Google: Gemini 2.5 Pro | 1049K | N/A | $1.25 | $10.00 | standard |
| Google: Gemini 2.5 Pro Preview 06-05 | 1049K | N/A | $1.25 | $10.00 | standard |
| Google: Gemini 2.5 Pro Preview 05-06 | 1049K | N/A | $1.25 | $10.00 | standard |
| Model | Context | Parameters | Input Price | Output Price | Tier |
|---|---|---|---|---|---|
| xAI: Grok 4.20 Multi-Agent Beta | 2000K | N/A | $2.00 | $6.00 | standard |
| xAI: Grok 4.20 Beta | 2000K | N/A | $2.00 | $6.00 | standard |
| xAI: Grok 4.1 Fast | 2000K | N/A | $0.20 | $0.50 | budget |
| xAI: Grok 4 Fast | 2000K | N/A | $0.20 | $0.50 | budget |
| xAI: Grok Code Fast 1 | 256K | N/A | $0.20 | $1.50 | standard |
| xAI: Grok 4 | 256K | N/A | $3.00 | $15.00 | premium |
| xAI: Grok 3 Mini | 131K | N/A | $0.30 | $0.50 | budget |
| xAI: Grok 3 | 131K | N/A | $3.00 | $15.00 | premium |
| xAI: Grok 3 Mini Beta | 131K | N/A | $0.30 | $0.50 | budget |
| xAI: Grok 3 Beta | 131K | N/A | $3.00 | $15.00 | premium |
Choosing between Gemini and Grok depends on your specific needs. Both are powerful AI models with different strengths. With CoreAI, you don't have to choose — you get access to both Gemini and Grok, along with 300+ other AI models, all under one subscription.
Use CoreAI's Compare feature to send the same prompt to both Gemini and Grok simultaneously and see their responses side-by-side. This is the best way to determine which AI model works better for your specific use case.
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