Model Comparison
DeepSeek-V3.2 (Non-thinking) vs Grok-4.1 Fast Non-ReasoningWhich is better in 2026?
Comparing DeepSeek-V3.2 (Non-thinking) and Grok-4.1 Fast Non-Reasoning across benchmarks, pricing, and capabilities.
Verdict: DeepSeek-V3.2 (Non-thinking) vs Grok-4.1 Fast Non-Reasoning — which is better?
DeepSeek-V3.2 (Non-thinking) (by DeepSeek) and Grok-4.1 Fast Non-Reasoning (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
On price, Grok-4.1 Fast Non-Reasoning is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4.1 Fast Non-Reasoning also accepts a larger context window (2,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Choose DeepSeek-V3.2 (Non-thinking) if…
- you want the most recent training data — it shipped Dec 2025
- you need open weights you can self-host or fine-tune
Choose Grok-4.1 Fast Non-Reasoning if…
- cost matters — it's about 1.1x cheaper per token
- you process long inputs — it offers a 2,000,000 token context window
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V3.2 (Non-thinking) and Grok-4.1 Fast Non-Reasoningdon'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
For input processing, DeepSeek-V3.2 (Non-thinking) ($0.28/1M tokens) is 1.4x more expensive than Grok-4.1 Fast Non-Reasoning ($0.20/1M tokens).
For output processing, DeepSeek-V3.2 (Non-thinking) ($0.42/1M tokens) is 1.2x cheaper than Grok-4.1 Fast Non-Reasoning ($0.50/1M tokens).
In conclusion, DeepSeek-V3.2 (Non-thinking) is more expensive than Grok-4.1 Fast Non-Reasoning.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4.1 Fast Non-Reasoning accepts 2,000,000 input tokens compared to DeepSeek-V3.2 (Non-thinking)'s 131,072 tokens. Grok-4.1 Fast Non-Reasoning can generate longer responses up to 30,000 tokens, while DeepSeek-V3.2 (Non-thinking) is limited to 8,192 tokens.
Input Capabilities
Supported data types and modalities
Grok-4.1 Fast Non-Reasoning supports multimodal inputs, whereas DeepSeek-V3.2 (Non-thinking) 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-V3.2 (Non-thinking)
Grok-4.1 Fast Non-Reasoning
License
Usage and distribution terms
DeepSeek-V3.2 (Non-thinking) 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.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
DeepSeek-V3.2 (Non-thinking) was released on 2025-12-01, while Grok-4.1 Fast Non-Reasoning was released on 2025-11-17.
DeepSeek-V3.2 (Non-thinking) is 0 month newer than Grok-4.1 Fast Non-Reasoning.
Dec 1, 2025
6 months ago
2w newerNov 17, 2025
6 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
DeepSeek-V3.2 (Non-thinking) is available from DeepSeek. Grok-4.1 Fast Non-Reasoning is available from xAI.
DeepSeek-V3.2 (Non-thinking)
Grok-4.1 Fast Non-Reasoning
Outputs Comparison
Key Takeaways
Detailed Comparison
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FAQ
Common questions about DeepSeek-V3.2 (Non-thinking) vs Grok-4.1 Fast Non-Reasoning.