xAI
Grok 4 Fast
Canonical ID:
xai/grok-4-fast
Grok 4 Fast is listed under xAI in LLM Directory with pricing, context limits, modalities, and capability metadata for quick comparison.
Overview
- Provider
-
xAI
- Family
- grok-4-fast
- Release date
- 2025-09-19
- Last updated
- 2025-09-19
- Input modalities
- text, image
- Output modalities
- text
Pricing and Limits
Token pricing
- Input
- $0.2/1M
- Output
- $0.5/1M
- Cached input
- N/A
Context and output
- Context window
- 2,000,000
- Max output tokens
- 30,000
- Qualified ID
- xai/grok-4-fast
Model Summary
Grok 4 Fast is a model listing in the xAI provider catalog. It is categorized under the grok-4-fast family.
The model supports text, image modalities across input/output paths. Reported context capacity is 2,000,000. Pricing is listed at $0.2/1M input and $0.5/1M output.
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Same Family: grok-4-fast
Comparable models in the same family across providers.
| Model | Provider | Context | Input | Output | Flags |
|---|---|---|---|---|---|
|
Grok 4 Fast
requesty/xai/grok-4-fast
|
Requesty
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
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|
Grok 4 Fast
zenmux/x-ai/grok-4-fast
|
Zenmux
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
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x-AI/Grok-4-Fast
qiniu-ai/x-ai/grok-4-fast
|
Qiniu
|
2,000,000 | N/A | N/A |
Reasoning
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x-AI/Grok-4-Fast
qiniu_ai/x-ai/grok-4-fast
|
Qiniu
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2,000,000 | N/A | N/A |
Reasoning
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xAI: Grok 4 Fast
kilo/x-ai/grok-4-fast
|
Kilo Gateway
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
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|