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grok-4-1-fast-reasoning

grok-4-1-fast-reasoning is attributed to xAI in the catalog. It accepts text and image input and produces text output. Reported capabilities include reasoning and tool calling.

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Modalities

Hosted provider token rates

$0.19 / $0.475

USD per 1M input / output tokens · Jiekou.AI

Context

2M

Released

2025-11-19

Knowledge cutoff

Jun 2025

No recent lab-operated provider rate is available. Showing the third-party host with the lowest input rate + ¼ output rate. This is one offering, not an average; other providers, modalities, tiers, and fees may differ.

Where to use it

13 observed offerings · token prices in USD per million where available

Estimate your workload cost
Vercel AI Gateway

spacexai/grok-4.1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

1M

Max output

1M
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
Yes

Historical price

Jiekou.AI

grok-4-1-fast-reasoning

current

Input

$0.19

Output

$0.475

Cache

—

Context

2M

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
Yes

Recent price

Vertex

xai/grok-4.1-fast-reasoning

deprecated

Input

$0.20

Output

$0.50

Cache

$0.05

Context

128K

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
Yes

Not a current offering

FrogBot

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

2M

Max output

128K
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes

Recent price

Poe

xai/grok-4.1-fast-reasoning

deprecated

Input

—

Output

—

Cache

—

Context

2M

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
No

Not a current offering

Helicone

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

2M

Max output

2M
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes

Recent price

DevPass (LLM Gateway)

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

2M

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
Yes

Recent price

302.AI

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

—

Context

2M

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes

Recent price

LLM Gateway

azure/grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

—

Context

128K

Max output

128K
Reasoning
Yes
Tool calling
Yes
Structured output
No
Temperature
Yes

Recent price

LLM Gateway

azure-ai-foundry/grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

—

Context

128K

Max output

30K
Reasoning
Yes
Tool calling
Yes
Structured output
No
Temperature
Yes

Recent price

Azure

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

128K

Max output

8K
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes

Recent price

Azure Cognitive Services

grok-4-1-fast-reasoning

current

Input

$0.20

Output

$0.50

Cache

$0.05

Context

128K

Max output

8K
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes

Recent price

Qiniu

x-ai/grok-4.1-fast-reasoning

deprecated

Input

—

Output

—

Cache

—

Context

20M

Max output

2M
Reasoning
Yes
Tool calling
Yes
Structured output
No
Temperature
Yes

Not a current offering

Limits and capabilities reflect each provider’s listed offering. Unknown means support was not reported.

Capabilities and limits

Input
text, image
Output
text
Max output
30K
Weights
Closed (source-reported)
Release
2025-11-19
Knowledge cutoff
Jun 2025
Family
grok

Reasoning · Tool calling · Vision

Provider-specific limits and support can differ.

Plan a model evaluation

Evaluate quality and latency on examples from your intended use before choosing a model.

Explore available evidence

Models to compare

Candidates match reported specifications; they are not tested replacements.

Model and price history

Latest recorded change: source refresh · 2026-10-31

Model changes (3)
  • source refresh · 2026-10-31
    {
      "before": {
        "context_tokens": 2000000
      },
      "after": {
        "context_tokens": 128000
      }
    }
  • price change · 2026-10-22
    {
      "before": {
        "input": "0.18000000",
        "output": "0.45000000",
        "provider": "Jiekou.AI"
      },
      "after": {
        "input": 0.19,
        "output": 0.475,
        "provider": "Jiekou.AI"
      }
    }
  • source refresh · 2026-10-22
    {
      "before": {
        "status": "deprecated",
        "canonical_name": "Grok 4.1 Fast (Reasoning)",
        "context_tokens": 128000,
        "knowledge_cutoff_reported": null,
        "supports_structured_output": true
      },
      "after": {
        "status": "current",
        "canonical_name": "grok-4-1-fast-reasoning",
        "context_tokens": 2000000,
        "knowledge_cutoff_reported": "2025-06",
        "supports_structured_output": false
      }
    }
Price history (290 observations)
DateProviderInput / output
2026-11-02Jiekou.AI$0.19 / $0.475
2026-11-02302.AI$0.20 / $0.50
2026-11-02Helicone$0.20 / $0.50
2026-11-02DevPass (LLM Gateway)$0.20 / $0.50
2026-11-02Vertex$0.20 / $0.50
2026-11-02FrogBot$0.20 / $0.50
2026-11-02LLM Gateway$0.20 / $0.50
2026-11-02LLM Gateway$0.20 / $0.50
2026-11-02Azure Cognitive Services$0.20 / $0.50
2026-11-02Azure$0.20 / $0.50
2026-11-01Jiekou.AI$0.19 / $0.475
2026-11-01DevPass (LLM Gateway)$0.20 / $0.50
2026-11-01FrogBot$0.20 / $0.50
2026-11-01Helicone$0.20 / $0.50
2026-11-01302.AI$0.20 / $0.50
2026-11-01Vertex$0.20 / $0.50
2026-11-01LLM Gateway$0.20 / $0.50
2026-11-01LLM Gateway$0.20 / $0.50
2026-11-01Azure Cognitive Services$0.20 / $0.50
2026-11-01Azure$0.20 / $0.50
2026-10-31Helicone$0.20 / $0.50
2026-10-31FrogBot$0.20 / $0.50
2026-10-31Vertex$0.20 / $0.50
2026-10-31302.AI$0.20 / $0.50
2026-10-31DevPass (LLM Gateway)$0.20 / $0.50
2026-10-31Jiekou.AI$0.19 / $0.475
2026-10-31LLM Gateway$0.20 / $0.50
2026-10-31LLM Gateway$0.20 / $0.50
2026-10-31Azure Cognitive Services$0.20 / $0.50
2026-10-31Azure$0.20 / $0.50
2026-10-30302.AI$0.20 / $0.50
2026-10-30FrogBot$0.20 / $0.50
2026-10-30DevPass (LLM Gateway)$0.20 / $0.50
2026-10-30Helicone$0.20 / $0.50
2026-10-30Jiekou.AI$0.19 / $0.475
2026-10-30Vertex$0.20 / $0.50
2026-10-30LLM Gateway$0.20 / $0.50
2026-10-30Azure$0.20 / $0.50
2026-10-30Azure Cognitive Services$0.20 / $0.50
2026-10-29302.AI$0.20 / $0.50
2026-10-29Helicone$0.20 / $0.50
2026-10-29FrogBot$0.20 / $0.50
2026-10-29Vertex$0.20 / $0.50
2026-10-29Jiekou.AI$0.19 / $0.475
2026-10-29DevPass (LLM Gateway)$0.20 / $0.50
2026-10-29LLM Gateway$0.20 / $0.50
2026-10-29Azure Cognitive Services$0.20 / $0.50
2026-10-29Azure$0.20 / $0.50
2026-10-28FrogBot$0.20 / $0.50
2026-10-28Vertex$0.20 / $0.50
2026-10-28Jiekou.AI$0.19 / $0.475
2026-10-28Helicone$0.20 / $0.50
2026-10-28302.AI$0.20 / $0.50
2026-10-28DevPass (LLM Gateway)$0.20 / $0.50
2026-10-28LLM Gateway$0.20 / $0.50
2026-10-28Azure$0.20 / $0.50
2026-10-28Azure Cognitive Services$0.20 / $0.50
2026-10-27Helicone$0.20 / $0.50
2026-10-27Vertex$0.20 / $0.50
2026-10-27302.AI$0.20 / $0.50
2026-10-27DevPass (LLM Gateway)$0.20 / $0.50
2026-10-27Jiekou.AI$0.19 / $0.475
2026-10-27FrogBot$0.20 / $0.50
2026-10-27LLM Gateway$0.20 / $0.50
2026-10-27Azure$0.20 / $0.50
2026-10-27Azure Cognitive Services$0.20 / $0.50
2026-10-27Vertex$0.20 / $0.50
2026-10-27FrogBot$0.20 / $0.50
2026-10-27302.AI$0.20 / $0.50
2026-10-27Helicone$0.20 / $0.50
2026-10-27DevPass (LLM Gateway)$0.20 / $0.50
2026-10-27Jiekou.AI$0.19 / $0.475
2026-10-27LLM Gateway$0.20 / $0.50
2026-10-27Azure$0.20 / $0.50
2026-10-27Azure Cognitive Services$0.20 / $0.50
2026-10-27Helicone$0.20 / $0.50
2026-10-27DevPass (LLM Gateway)$0.20 / $0.50
2026-10-27Jiekou.AI$0.19 / $0.475
2026-10-27FrogBot$0.20 / $0.50
2026-10-27302.AI$0.20 / $0.50
2026-10-27Vertex$0.20 / $0.50
2026-10-27LLM Gateway$0.20 / $0.50
2026-10-27Azure Cognitive Services$0.20 / $0.50
2026-10-27Azure$0.20 / $0.50
2026-10-27Helicone$0.20 / $0.50
2026-10-27DevPass (LLM Gateway)$0.20 / $0.50
2026-10-27302.AI$0.20 / $0.50
2026-10-27Jiekou.AI$0.19 / $0.475
2026-10-27FrogBot$0.20 / $0.50
2026-10-27Vertex$0.20 / $0.50
2026-10-27LLM Gateway$0.20 / $0.50
2026-10-27Azure Cognitive Services$0.20 / $0.50
2026-10-27Azure$0.20 / $0.50
2026-10-26FrogBot$0.20 / $0.50
2026-10-26Jiekou.AI$0.19 / $0.475
2026-10-26Helicone$0.20 / $0.50
2026-10-26Vertex$0.20 / $0.50
2026-10-26302.AI$0.20 / $0.50
2026-10-26DevPass (LLM Gateway)$0.20 / $0.50
2026-10-26LLM Gateway$0.20 / $0.50
2026-10-26Azure Cognitive Services$0.20 / $0.50
2026-10-26Azure$0.20 / $0.50
2026-10-25FrogBot$0.20 / $0.50
2026-10-25DevPass (LLM Gateway)$0.20 / $0.50
2026-10-25Vertex$0.20 / $0.50
2026-10-25Helicone$0.20 / $0.50
2026-10-25302.AI$0.20 / $0.50
2026-10-25Jiekou.AI$0.19 / $0.475
2026-10-25LLM Gateway$0.20 / $0.50
2026-10-25Azure$0.20 / $0.50
2026-10-25Azure Cognitive Services$0.20 / $0.50
2026-10-24DevPass (LLM Gateway)$0.20 / $0.50
2026-10-24Vertex$0.20 / $0.50
2026-10-24FrogBot$0.20 / $0.50
2026-10-24Jiekou.AI$0.19 / $0.475
2026-10-24302.AI$0.20 / $0.50
2026-10-24Helicone$0.20 / $0.50
2026-10-24LLM Gateway$0.20 / $0.50
2026-10-24Azure Cognitive Services$0.20 / $0.50
2026-10-24Azure$0.20 / $0.50
2026-10-24Jiekou.AI$0.19 / $0.475
2026-10-24DevPass (LLM Gateway)$0.20 / $0.50
2026-10-24FrogBot$0.20 / $0.50
2026-10-24Vertex$0.20 / $0.50
2026-10-24302.AI$0.20 / $0.50
2026-10-24Helicone$0.20 / $0.50
2026-10-24LLM Gateway$0.20 / $0.50
2026-10-24Azure Cognitive Services$0.20 / $0.50
2026-10-24Azure$0.20 / $0.50
2026-10-24Vertex$0.20 / $0.50
2026-10-24DevPass (LLM Gateway)$0.20 / $0.50
2026-10-24Jiekou.AI$0.19 / $0.475
2026-10-24Helicone$0.20 / $0.50
2026-10-24302.AI$0.20 / $0.50
2026-10-24FrogBot$0.20 / $0.50
2026-10-24LLM Gateway$0.20 / $0.50
2026-10-24Azure$0.20 / $0.50
2026-10-24Azure Cognitive Services$0.20 / $0.50
2026-10-23FrogBot$0.20 / $0.50
2026-10-23302.AI$0.20 / $0.50
2026-10-23Vertex$0.20 / $0.50
2026-10-23Jiekou.AI$0.19 / $0.475
2026-10-23DevPass (LLM Gateway)$0.20 / $0.50
2026-10-23Helicone$0.20 / $0.50
2026-10-23LLM Gateway$0.20 / $0.50
2026-10-23Azure$0.20 / $0.50
2026-10-23Azure Cognitive Services$0.20 / $0.50
2026-10-23FrogBot$0.20 / $0.50
2026-10-23Helicone$0.20 / $0.50
2026-10-23302.AI$0.20 / $0.50
2026-10-23DevPass (LLM Gateway)$0.20 / $0.50
2026-10-23Jiekou.AI$0.19 / $0.475
2026-10-23Vertex$0.20 / $0.50
2026-10-23LLM Gateway$0.20 / $0.50
2026-10-23Azure$0.20 / $0.50
2026-10-23Azure Cognitive Services$0.20 / $0.50
2026-10-23DevPass (LLM Gateway)$0.20 / $0.50
2026-10-23FrogBot$0.20 / $0.50
2026-10-23Vertex$0.20 / $0.50
2026-10-23Helicone$0.20 / $0.50
2026-10-23302.AI$0.20 / $0.50
2026-10-23Jiekou.AI$0.19 / $0.475
2026-10-23LLM Gateway$0.20 / $0.50
2026-10-23Azure$0.20 / $0.50
2026-10-23Azure Cognitive Services$0.20 / $0.50
2026-10-23Vertex$0.20 / $0.50
2026-10-23Jiekou.AI$0.19 / $0.475
2026-10-23DevPass (LLM Gateway)$0.20 / $0.50
2026-10-23302.AI$0.20 / $0.50
2026-10-23Helicone$0.20 / $0.50
2026-10-23FrogBot$0.20 / $0.50
2026-10-23LLM Gateway$0.20 / $0.50
2026-10-23Azure Cognitive Services$0.20 / $0.50
2026-10-23Azure$0.20 / $0.50
2026-10-23302.AI$0.20 / $0.50
2026-10-23DevPass (LLM Gateway)$0.20 / $0.50
2026-10-23FrogBot$0.20 / $0.50
2026-10-23Helicone$0.20 / $0.50
2026-10-23Jiekou.AI$0.19 / $0.475
2026-10-23Vertex$0.20 / $0.50
2026-10-23LLM Gateway$0.20 / $0.50
2026-10-23Azure Cognitive Services$0.20 / $0.50
2026-10-23Azure$0.20 / $0.50
2026-10-22DevPass (LLM Gateway)$0.20 / $0.50
2026-10-22FrogBot$0.20 / $0.50
2026-10-22Jiekou.AI$0.19 / $0.475
2026-10-22Vertex$0.20 / $0.50
2026-10-22302.AI$0.20 / $0.50
2026-10-22Helicone$0.20 / $0.50
2026-10-22Vercel AI Gateway$0.20 / $0.50
2026-10-22LLM Gateway$0.20 / $0.50
2026-10-22Azure Cognitive Services$0.20 / $0.50
2026-10-22Azure$0.20 / $0.50
2026-10-21DevPass (LLM Gateway)$0.20 / $0.50
2026-10-21Vertex$0.20 / $0.50
2026-10-21Vercel AI Gateway$0.20 / $0.50
2026-10-21LLM Gateway$0.20 / $0.50
2026-10-21Azure Cognitive Services$0.20 / $0.50
2026-10-21Azure$0.20 / $0.50
2026-10-20Vertex$0.20 / $0.50
2026-10-20DevPass (LLM Gateway)$0.20 / $0.50
2026-10-20Vercel AI Gateway$0.20 / $0.50
2026-10-20LLM Gateway$0.20 / $0.50
2026-10-20Azure$0.20 / $0.50
2026-10-20Azure Cognitive Services$0.20 / $0.50
2026-10-19Vercel AI Gateway$0.20 / $0.50
2026-10-19DevPass (LLM Gateway)$0.20 / $0.50
2026-10-19Vertex$0.20 / $0.50
2026-10-19LLM Gateway$0.20 / $0.50
2026-10-19Azure$0.20 / $0.50
2026-10-18DevPass (LLM Gateway)$0.20 / $0.50
2026-10-18Vercel AI Gateway$0.20 / $0.50
2026-10-18Vertex$0.20 / $0.50
2026-10-18LLM Gateway$0.20 / $0.50
2026-10-18Azure$0.20 / $0.50
2026-10-17Vertex$0.20 / $0.50
2026-10-17Vercel AI Gateway$0.20 / $0.50
2026-10-17DevPass (LLM Gateway)$0.20 / $0.50
2026-10-17LLM Gateway$0.20 / $0.50
2026-10-17Azure$0.20 / $0.50
2026-10-12Vercel AI Gateway$0.20 / $0.50
2026-10-12DevPass (LLM Gateway)$0.20 / $0.50
2026-10-12Vertex$0.20 / $0.50
2026-10-12LLM Gateway$0.20 / $0.50
2026-10-12Azure$0.20 / $0.50
2026-10-12Vertex$0.20 / $0.50
2026-10-12DevPass (LLM Gateway)$0.20 / $0.50
2026-10-12Vercel AI Gateway$0.20 / $0.50
2026-10-12LLM Gateway$0.20 / $0.50
2026-10-12Azure$0.20 / $0.50
2026-10-11Vercel AI Gateway$0.20 / $0.50
2026-10-11DevPass (LLM Gateway)$0.20 / $0.50
2026-10-11Vertex$0.20 / $0.50
2026-10-11LLM Gateway$0.20 / $0.50
2026-10-11Azure$0.20 / $0.50
2026-10-10Vercel AI Gateway$0.20 / $0.50
2026-10-10Vertex$0.20 / $0.50
2026-10-10DevPass (LLM Gateway)$0.20 / $0.50
2026-10-10LLM Gateway$0.20 / $0.50
2026-10-10Azure$0.20 / $0.50
2026-10-09Vercel AI Gateway$0.20 / $0.50
2026-10-09DevPass (LLM Gateway)$0.20 / $0.50
2026-10-09Vertex$0.20 / $0.50
2026-10-09LLM Gateway$0.20 / $0.50
2026-10-09Azure$0.20 / $0.50
2026-10-09DevPass (LLM Gateway)$0.20 / $0.50
2026-10-09Vercel AI Gateway$0.20 / $0.50
2026-10-09Vertex$0.20 / $0.50
2026-10-09LLM Gateway$0.20 / $0.50
2026-10-09Azure$0.20 / $0.50
2026-10-08Vertex$0.20 / $0.50
2026-10-08DevPass (LLM Gateway)$0.20 / $0.50
2026-10-08Vercel AI Gateway$0.20 / $0.50
2026-10-08LLM Gateway$0.20 / $0.50
2026-10-08Azure$0.20 / $0.50
2026-10-07Vercel AI Gateway$0.20 / $0.50
2026-10-07DevPass (LLM Gateway)$0.20 / $0.50
2026-10-07Vertex$0.20 / $0.50
2026-10-07LLM Gateway$0.20 / $0.50
2026-10-07Azure$0.20 / $0.50
2026-09-22Vercel AI Gateway$0.20 / $0.50
2026-09-22Vertex$0.20 / $0.50
2026-09-22DevPass (LLM Gateway)$0.20 / $0.50
2026-09-22LLM Gateway$0.20 / $0.50
2026-09-22Azure$0.20 / $0.50
2026-09-21Vertex$0.20 / $0.50
2026-09-21DevPass (LLM Gateway)$0.20 / $0.50
2026-09-21Vercel AI Gateway$0.20 / $0.50
2026-09-21LLM Gateway$0.20 / $0.50
2026-09-21Azure$0.20 / $0.50
2026-09-20DevPass (LLM Gateway)$0.20 / $0.50
2026-09-20Vertex$0.20 / $0.50
2026-09-20Vercel AI Gateway$0.20 / $0.50
2026-09-20LLM Gateway$0.20 / $0.50
2026-09-20Azure$0.20 / $0.50
2026-09-19Vertex$0.20 / $0.50
2026-09-19Vercel AI Gateway$0.20 / $0.50
2026-09-19DevPass (LLM Gateway)$0.20 / $0.50
2026-09-19LLM Gateway$0.20 / $0.50
2026-09-19Azure$0.20 / $0.50
2026-09-18Vertex$0.20 / $0.50
2026-09-18DevPass (LLM Gateway)$0.20 / $0.50
2026-09-18Vercel AI Gateway$0.20 / $0.50
2026-09-18LLM Gateway$0.20 / $0.50
2026-09-18Azure$0.20 / $0.50
2026-09-17DevPass (LLM Gateway)$0.20 / $0.50
2026-09-17Vercel AI Gateway$0.20 / $0.50
2026-09-17Vertex$0.20 / $0.50
2026-09-17LLM Gateway$0.20 / $0.50
2026-09-17Azure$0.20 / $0.50