Model Comparison

DeepSeek VL2 Tiny vs Grok-4 Fast ReasoningWhich is better in 2026?

Comparing DeepSeek VL2 Tiny and Grok-4 Fast Reasoning across benchmarks, pricing, and capabilities.

Verdict: DeepSeek VL2 Tiny vs Grok-4 Fast Reasoning — which is better?

DeepSeek VL2 Tiny (by DeepSeek) and Grok-4 Fast 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.

Choose DeepSeek VL2 Tiny if…

  • you need open weights you can self-host or fine-tune

Choose Grok-4 Fast Reasoning if…

  • you want the most recent training data — it shipped Aug 2025

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

DeepSeek VL2 Tiny and Grok-4 Fast Reasoningdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Grok-4 Fast Reasoning specifies input context (2,000,000 tokens). Only Grok-4 Fast Reasoning specifies output context (30,000 tokens).

DeepSeek
DeepSeek VL2 Tiny
Input- tokens
Output- tokens
xAI
Grok-4 Fast Reasoning
Input2,000,000 tokens
Output30,000 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both DeepSeek VL2 Tiny and Grok-4 Fast Reasoning support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

DeepSeek VL2 Tiny

Text
Images
Audio
Video

Grok-4 Fast Reasoning

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek VL2 Tiny is licensed under deepseek, while Grok-4 Fast Reasoning uses a proprietary license.

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

DeepSeek VL2 Tiny

deepseek

Open weights

Grok-4 Fast Reasoning

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek VL2 Tiny was released on 2024-12-13, while Grok-4 Fast Reasoning was released on 2025-08-28.

Grok-4 Fast Reasoning is 9 months newer than DeepSeek VL2 Tiny.

DeepSeek VL2 Tiny

Dec 13, 2024

1.6 years ago

Grok-4 Fast Reasoning

Aug 28, 2025

11 months ago

8mo 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)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against DeepSeek VL2 Tiny and Grok-4 Fast Reasoning side-by-side, then vote on the output you prefer.

DeepSeek VL2 Tiny
✓ Preferred
Grok-4 Fast Reasoning
Open in Playground
AI Model Comparison Table
Feature
DeepSeek
DeepSeek VL2 Tiny
xAI
Grok-4 Fast Reasoning

FAQ

Common questions about DeepSeek VL2 Tiny vs Grok-4 Fast Reasoning.

Which is better, DeepSeek VL2 Tiny or Grok-4 Fast Reasoning?

DeepSeek VL2 Tiny (DeepSeek) and Grok-4 Fast Reasoning (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does DeepSeek VL2 Tiny compare to Grok-4 Fast Reasoning in benchmarks?

DeepSeek VL2 Tiny scores DocVQA: 88.9%, ChartQA: 81.0%, OCRBench: 80.9%, TextVQA: 80.7%, AI2D: 71.6%.

What are the context window sizes for DeepSeek VL2 Tiny and Grok-4 Fast Reasoning?

DeepSeek VL2 Tiny supports an unknown number of tokens and Grok-4 Fast Reasoning supports 2.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek VL2 Tiny and Grok-4 Fast Reasoning?

Key differences include licensing (deepseek vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek VL2 Tiny and Grok-4 Fast Reasoning?

DeepSeek VL2 Tiny is developed by DeepSeek and Grok-4 Fast Reasoning is developed by xAI.

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