Grok 4 Reasoning
Grok 4 Reasoning is xAI's language model with a 2.0M context window and up to 256K output tokens, available from 2 providers, starting at $0.200 / 1M input and $0.500 / 1M output. The reasoning-enabled variant of xAI's Grok 4 Fast, combining chain-of-thought capabilities with cost-efficient multimodal processing and a 2M token context window.
Capabilities
Input3/5
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Output1/5
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Capabilities5/13
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Pricing by Provider
| Provider | Standard | Batch | ||||
|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
 Azure AI Foundry | $0.200 | $0.500 | N/A | — | — | — |
xAI | $1.25 | $2.50 | $0.200 | $0.625 | $1.25 | $0.100 |
Cost Calculator
Preset:
Compares every provider & tier in USD
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Grok 4.3 | 1.0M | $1.25 | $2.50 | Available | |
| Grok 4.20 | 2.0M | $1.25 | $2.50 | Available | |
| Grok 4.20 Multi-Agent | 2.0M | $1.25 | $2.50 | Available | |
| Grok 4.20 Multi-Agent Beta | 2.0M | $1.25 | $2.50 | Available | |
| Grok 4.20 Non-Reasoning | 2.0M | $1.25 | $2.50 | Available | |
| Grok 4.20 Reasoning | 2.0M | $1.25 | $2.50 | Available | |
| Grok 4.1 Fast | 2.0M | $1.25 | $2.50 | Deprecated | |
| Grok 4 Fast | 131K | $0.200 | $0.500 | Deprecated | |
| Grok 4 Fast Non-Reasoning | 2.0M | $0.200 | $0.500 | Available | |
| Grok 4 Reasoning | 2.0M | $0.200 | $0.500 | Current | |
| Grok 4 | 256K | $1.25 | $2.50 | Deprecated |