Model overview
Grok 4 Fast 是 xAI 最新的多模态模型，具有 SOTA 成本效益和 2M 令牌上下文窗口。它有两种风格：非推理和推理
The summary below is compiled from sources by an AI model, not our own testing. Verify selection decisions against original sources and your workload.
Key features
- 支持多模态输入（含图像识别）
- 具备200万令牌的超长上下文窗口
- 提供两种推理模式：非推理风格与推理风格
Limitations & considerations
Sources are insufficient to establish specific limitations. Verify task performance, latency, data policies, licensing and version lifecycle.
Source prices & cost analysis
Prices vary by channel, region and configuration. Channel quotes are listed independently and are not treated as a single official provider price.
| Source / channel | Input | Output | Billing unit | Collected at |
|---|---|---|---|---|
| Apilio · AZ-优质 ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/11/2 06:25:15 |
| Apilio · default ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/11/2 06:25:15 |
| Apilio · openai官-优质 ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/11/2 06:25:15 |
| Apilio · origin ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/11/2 06:25:15 |
| Apilio · ssvip ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/11/2 06:25:15 |
Estimate monthly base token costs
Estimates exclude cache discounts, tiered pricing, multimodal surcharges, web search, taxes and additional reasoning output.
Public benchmarks & run configuration
暂无已采集的可核验公开评分。模型未上榜不代表能力较低。
View full indexed rankings →Frequently asked questions
Grok 4 Fast 是否支持图像理解？
是的，根据标签‘识图’及多模态描述，它支持图像理解能力。
它的上下文长度具体是多少？
其上下文窗口为2M（200万）令牌。
什么是‘推理风格’和‘非推理风格’的区别？
资料中仅说明存在两种风格（非推理和推理），但未定义具体差异。
Do open weights permit free commercial use?
Not necessarily. Check the version license, commercial conditions and usage policies. Self-hosting incurs compute and maintenance costs.
Are these real-time billing prices?
These are timestamped source snapshots, not live billing prices. Check the channel for current versions, regions, discounts and billing methods.
Sources & traceability
许可证：来源未披露，须进一步核验。模型介绍与第三方评测均以原来源的具体版本和方法为准。