Grok 4 Fast:free
OpenRouterText
Grok 4 Fast:free is a text model from OpenRouter with a context window of 2.0M tokens and max output of 30K tokens.
Specifications
| Model Key | openrouter/x-ai/grok-4-fast:free |
| Provider | OpenRouter |
| LiteLLM Provider | openrouter |
| Mode | Text |
| Canonical Name | grok-4-fast |
| Context Window | 2.0M tokens |
| Max Output | 30K tokens |
Capabilities
✗ Vision✓ Function Calling✓ Reasoning✗ JSON Schema✗ System Messages✗ Web Search✗ Prompt Caching✗ Audio Input✗ Audio Output
Pricing
| Type | Per 1K Tokens | Per 1M Tokens |
|---|---|---|
| Input Tokens | N/A | N/A |
| Output Tokens | N/A | N/A |
Similar Models
Models with similar capabilities and context window size.
Model | Provider | Mode | Input Price | Output Price | Context | Max Output | Vision | Functions |
|---|---|---|---|---|---|---|---|---|
| Gemini 1.5 Pro-exp-0827 | Google Gemini | Text | N/A | N/A | 2.1M | 8K | yes | yes |
| Gemini 2.0 Pro-exp-02-05 | Google Gemini | Text | N/A | N/A | 2.1M | 8K | yes | yes |
| Gemini Experimental 1206 | Google Gemini | Text | N/A | N/A | 2.1M | 8K | yes | yes |
| Grok 4 1 Fast | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | yes | yes |
| Grok 4 1 Fast Non Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | yes | yes |
| Grok 4 1 Fast Non Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | yes | yes |
| Grok 4 1 Fast Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | yes | yes |
| Grok 4 1 Fast Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | yes | yes |
| Grok 4 Fast Non Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | no | yes |
| Grok 4 Fast Reasoning | xAI | Text | $0.200 | $0.500 | 2.0M | 2.0M | no | yes |