Grok-4.1 Fast Reasoning vs Nova Micro Comparison

Comparing Grok-4.1 Fast Reasoning and Nova Micro across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok-4.1 Fast Reasoning and Nova Micro don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Nova Micro costs less

For input processing, Grok-4.1 Fast Reasoning ($0.20/1M tokens) is 6.7x more expensive than Nova Micro ($0.03/1M tokens).

For output processing, Grok-4.1 Fast Reasoning ($0.50/1M tokens) is 3.6x more expensive than Nova Micro ($0.14/1M tokens).

In conclusion, Grok-4.1 Fast Reasoning is more expensive than Nova Micro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Grok-4.1 Fast Reasoning

Input tokens$0.20

Output tokens$0.50

Best providerxAI

Nova Micro

Input tokens$0.03

Output tokens$0.14

Best providerAWS Bedrock

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Context Window

Maximum input and output token capacity

Grok-4.1 Fast Reasoning accepts 2,000,000 input tokens compared to Nova Micro's 128,000 tokens. Nova Micro can generate longer responses up to 128,000 tokens, while Grok-4.1 Fast Reasoning is limited to 30,000 tokens.

Grok-4.1 Fast Reasoning

Input2,000,000 tokens

Output30,000 tokens

Nova Micro

Input128,000 tokens

Output128,000 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-4.1 Fast Reasoning supports multimodal inputs, whereas Nova Micro does not.

Grok-4.1 Fast Reasoning can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-4.1 Fast Reasoning

Text

Images

Audio

Video

Nova Micro

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-4.1 Fast Reasoning

Proprietary

Closed source

Nova Micro

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-4.1 Fast Reasoning was released on 2025-11-17, while Nova Micro was released on 2024-11-20.

Grok-4.1 Fast Reasoning is 12 months newer than Nova Micro.

Grok-4.1 Fast Reasoning

Nov 17, 2025

3 months ago

12mo newer

Nova Micro

Nov 20, 2024

1.3 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Grok-4.1 Fast Reasoning is available from xAI. Nova Micro is available from Bedrock. The availability of providers can affect quality of the model and reliability.