Model Comparison

DeepSeek R1 Zero vs Grok-4.1 Fast Non-Reasoning

Comparing DeepSeek R1 Zero and Grok-4.1 Fast Non-Reasoning across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

DeepSeek R1 Zero and Grok-4.1 Fast Non-Reasoning 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

Cost data unavailable.

Lowest available price from all providers
Wed Apr 15 2026 • llm-stats.com
DeepSeek
DeepSeek R1 Zero
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
xAI
Grok-4.1 Fast Non-Reasoning
Input tokens$0.20
Output tokens$0.50
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Only Grok-4.1 Fast Non-Reasoning specifies input context (2,000,000 tokens). Only Grok-4.1 Fast Non-Reasoning specifies output context (30,000 tokens).

DeepSeek
DeepSeek R1 Zero
Input- tokens
Output- tokens
xAI
Grok-4.1 Fast Non-Reasoning
Input2,000,000 tokens
Output30,000 tokens
Wed Apr 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-4.1 Fast Non-Reasoning supports multimodal inputs, whereas DeepSeek R1 Zero does not.

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

DeepSeek R1 Zero

Text
Images
Audio
Video

Grok-4.1 Fast Non-Reasoning

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek R1 Zero is licensed under MIT, while Grok-4.1 Fast Non-Reasoning uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

DeepSeek R1 Zero

MIT

Open weights

Grok-4.1 Fast Non-Reasoning

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek R1 Zero was released on 2025-01-20, while Grok-4.1 Fast Non-Reasoning was released on 2025-11-17.

Grok-4.1 Fast Non-Reasoning is 10 months newer than DeepSeek R1 Zero.

DeepSeek R1 Zero

Jan 20, 2025

1.2 years ago

Grok-4.1 Fast Non-Reasoning

Nov 17, 2025

4 months ago

10mo newer

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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

DeepSeek
Has open weights
xAI
Larger context window (2,000,000 tokens)
Supports multimodal inputs

Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek R1 Zero
xAI
Grok-4.1 Fast Non-Reasoning

FAQ

Common questions about DeepSeek R1 Zero vs Grok-4.1 Fast Non-Reasoning

DeepSeek R1 Zero (DeepSeek) and Grok-4.1 Fast Non-Reasoning (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.
DeepSeek R1 Zero scores MATH-500: 95.9%, AIME 2024: 86.7%, GPQA: 73.3%, LiveCodeBench: 50.0%.
DeepSeek R1 Zero supports an unknown number of tokens and Grok-4.1 Fast Non-Reasoning supports 2.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.
DeepSeek R1 Zero is developed by DeepSeek and Grok-4.1 Fast Non-Reasoning is developed by xAI.