Grok 3 Fast Beta
Grok 3 Fast Beta is xAI's language model with a 131K context window, starting at $3.00 / 1M input and $15.00 / 1M output. The beta fast-inference variant of Grok 3, balancing xAI's flagship model quality with reduced latency for agentic and enterprise workloads.
xAI's language model with a 131K context window, starting at $3.00 / 1M input and $15.00 / 1M output. The beta fast-inference variant of Grok 3, balancing xAI's flagship model quality with reduced latency for agentic and enterprise workloads.Capabilities
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Output1/5
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Capabilities2/13
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Pricing by Provider
| Provider | Standard | Batch | ||||
|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
xAI | $3.00 | $15.00 | $0.750 | $1.50 | $7.50 | $0.375 |
Cost Calculator
Preset:
Compares every provider & tier in USD
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Grok 4.20 Multi-Agent | 2.0M | $2.00 | $6.00 | Available | |
| Grok 4.20 Multi Agent Beta | 2.0M | $2.00 | $6.00 | Available | |
| Grok 4 20 Non-Reasoning | 2.0M | — | — | Available | |
| Grok 4 20 Reasoning | 2.0M | — | — | Available | |
| Grok 4 20 | — | 131K | $3.00 | $15.00 | Available |
| Grok 4.1 Fast | 2.0M | $0.200 | $0.500 | Available | |
| Grok 4.1 Fast Non-Reasoning | 2.0M | $0.200 | $0.500 | Available | |
| Grok 4.1 Fast Reasoning | 2.0M | $0.200 | $0.500 | Available | |
| Grok 4 Non-Reasoning | 2.0M | $2.00 | $6.00 | Available | |
| Grok 4 Reasoning | 2.0M | $2.00 | $6.00 | Available | |
| Grok 3 Fast Beta | — | 131K | $3.00 | $15.00 | Current |