Helicone
xAI: Grok 4 Fast Reasoning
Canonical ID:
helicone/grok-4-fast-reasoning
Fast Grok model for responsive chat, reasoning, and tool-assisted work
Overview
- Provider
-
Helicone
- Family
- grok-4-fast-reasoning
- Release date
- 2025-09-01
- Last updated
- 2025-09-01
- 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
- 2,000,000
- Qualified ID
- helicone/grok-4-fast-reasoning
Model Summary
xAI: Grok 4 Fast Reasoning is a model listing in the Helicone provider catalog. It is categorized under the grok-4-fast-reasoning 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-reasoning
Comparable models in the same family across providers.
| Model | Provider | Context | Input | Output | Flags |
|---|---|---|---|---|---|
|
Grok 4 Fast (Reasoning)
azure/grok-4-fast-reasoning
|
Azure
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
Grok 4 Fast (Reasoning)
azure_cognitive_services/grok-4-fast-reasoning
|
Azure Cognitive Services
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
Grok 4 Fast Reasoning
xai/grok-4-fast-reasoning
|
xAI
|
2,000,000 | $0.2/1M | $0.5/1M |
Tools
|
|
Grok 4 Fast Reasoning
vercel/xai/grok-4-fast-reasoning
|
Vercel AI Gateway
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
grok-4-fast-reasoning
jiekou/grok-4-fast-reasoning
|
Jiekou.AI
|
2,000,000 | $0.18/1M | $0.45/1M |
Tools
|
|
Grok-4-Fast-Reasoning
poe/xai/grok-4-fast-reasoning
|
Poe
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
grok-4-fast-reasoning
302ai/grok-4-fast-reasoning
|
302.AI
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
X-Ai/Grok-4-Fast-Reasoning
qiniu-ai/x-ai/grok-4-fast-reasoning
|
Qiniu
|
2,000,000 | N/A | N/A |
Reasoning
Tools
|
|
X-Ai/Grok-4-Fast-Reasoning
qiniu_ai/x-ai/grok-4-fast-reasoning
|
Qiniu
|
2,000,000 | N/A | N/A |
Reasoning
Tools
|