Azure
Grok 4 Fast (Reasoning)
Canonical ID:
azure/grok-4-fast-reasoning
Grok 4 Fast (Reasoning) is listed under Azure in LLM Directory with pricing, context limits, modalities, and capability metadata for quick comparison.
Overview
- Provider
-
Azure
- Family
- grok-4-fast-reasoning
- 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
- azure/grok-4-fast-reasoning
Model Summary
Grok 4 Fast (Reasoning) is a model listing in the Azure 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.
More From Azure
Related models from the same provider catalog.
Claude Fable 5
azure/claude-fable-5
Claude Fable 5.1
azure/claude-fable-5-1
Claude Haiku 4.5
azure/claude-haiku-4-5
Claude Haiku 5.5
azure/claude-haiku-5-5
Claude Mythos 5
azure/claude-mythos-5
Claude Opus 4.1
azure/claude-opus-4-1
Claude Opus 4.5
azure/claude-opus-4-5
Claude Opus 4.6
azure/claude-opus-4-6
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_cognitive_services/grok-4-fast-reasoning
|
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
Grok 4 Fast Reasoning
xai/grok-4-fast-reasoning
|
|
2,000,000 | $0.2/1M | $0.5/1M |
Tools
|
|
Grok 4 Fast Reasoning
vercel/xai/grok-4-fast-reasoning
|
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
Grok-4-Fast-Reasoning
poe/xai/grok-4-fast-reasoning
|
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|
|
grok-4-fast-reasoning
jiekou/grok-4-fast-reasoning
|
|
2,000,000 | $0.18/1M | $0.45/1M |
Tools
|
|
grok-4-fast-reasoning
302ai/grok-4-fast-reasoning
|
|
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
|
|
2,000,000 | N/A | N/A |
Reasoning
Tools
|
|
X-Ai/Grok-4-Fast-Reasoning
qiniu-ai/x-ai/grok-4-fast-reasoning
|
|
2,000,000 | N/A | N/A |
Reasoning
Tools
|
|
xAI: Grok 4 Fast Reasoning
helicone/grok-4-fast-reasoning
|
|
2,000,000 | $0.2/1M | $0.5/1M |
Reasoning
Tools
|