Grok 3 Fast
Grok 3 Fast is xAI's language model with a 131K context window, available from 3 providers, starting at $3.00 / 1M input and $15.00 / 1M output. A high-speed variant of xAI's Grok 3 flagship LLM optimized for enterprise tasks like data extraction, coding, and summarization with reduced latency.
Capabilities
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Output1/5
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Capabilities3/13
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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 |
 Oracle Cloud (OCI) | $5.00 | $25.00 | N/A | — | — | — |
 Vercel AI Gateway | $5.00 | $25.00 | $1.25 | — | — | — |
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 | $0.200 | $0.500 | Deprecating | |
| Grok 4 Fast | 2.0M | $0.200 | $0.500 | Deprecating | |
| Grok 4 Fast Non-Reasoning | 2.0M | $0.200 | $0.500 | Available | |
| Grok 4 | 256K | $3.00 | $15.00 | Deprecating | |
| Grok 3 Fast | 131K | $3.00 | $15.00 | Current |