Model Comparison

Grok-4 Fast Reasoning vs Qwen3-Next-80B-A3B-BaseWhich is better in 2026?

Comparing Grok-4 Fast Reasoning and Qwen3-Next-80B-A3B-Base across benchmarks, pricing, and capabilities.

Verdict: Grok-4 Fast Reasoning vs Qwen3-Next-80B-A3B-Base — which is better?

Grok-4 Fast Reasoning (by xAI) and Qwen3-Next-80B-A3B-Base (by Alibaba Cloud / Qwen Team) 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 Grok-4 Fast Reasoning if…

  • you want predictable pricing at $0.20/M input and $0.50/M output

Choose Qwen3-Next-80B-A3B-Base if…

  • you want the most recent training data — it shipped Sep 2025
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok-4 Fast Reasoning and Qwen3-Next-80B-A3B-Basedon'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).

xAI
Grok-4 Fast Reasoning
Input2,000,000 tokens
Output30,000 tokens
Alibaba Cloud / Qwen Team
Qwen3-Next-80B-A3B-Base
Input- tokens
Output- tokens
Wed Jun 24 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-4 Fast Reasoning supports multimodal inputs, whereas Qwen3-Next-80B-A3B-Base does not.

Grok-4 Fast Reasoning can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-4 Fast Reasoning

Text
Images
Audio
Video

Qwen3-Next-80B-A3B-Base

Text
Images
Audio
Video

License

Usage and distribution terms

Grok-4 Fast Reasoning is licensed under a proprietary license, while Qwen3-Next-80B-A3B-Base uses Apache 2.0.

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

Grok-4 Fast Reasoning

Proprietary

Closed source

Qwen3-Next-80B-A3B-Base

Apache 2.0

Open weights

Release Timeline

When each model was launched

Grok-4 Fast Reasoning was released on 2025-08-28, while Qwen3-Next-80B-A3B-Base was released on 2025-09-10.

Qwen3-Next-80B-A3B-Base is 0 month newer than Grok-4 Fast Reasoning.

Grok-4 Fast Reasoning

Aug 28, 2025

10 months ago

Qwen3-Next-80B-A3B-Base

Sep 10, 2025

9 months ago

1w 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

xAI
Larger context window (2,000,000 tokens)
Supports multimodal inputs
Alibaba Cloud / Qwen Team

Qwen3-Next-80B-A3B-Base

View details

Alibaba Cloud / Qwen Team

Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-4 Fast Reasoning
Alibaba Cloud / Qwen Team
Qwen3-Next-80B-A3B-Base

FAQ

Common questions about Grok-4 Fast Reasoning vs Qwen3-Next-80B-A3B-Base.

Which is better, Grok-4 Fast Reasoning or Qwen3-Next-80B-A3B-Base?

Grok-4 Fast Reasoning (xAI) and Qwen3-Next-80B-A3B-Base (Alibaba Cloud / Qwen Team) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

What are the context window sizes for Grok-4 Fast Reasoning and Qwen3-Next-80B-A3B-Base?

Grok-4 Fast Reasoning supports 2.0M tokens and Qwen3-Next-80B-A3B-Base supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-4 Fast Reasoning and Qwen3-Next-80B-A3B-Base?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-4 Fast Reasoning and Qwen3-Next-80B-A3B-Base?

Grok-4 Fast Reasoning is developed by xAI and Qwen3-Next-80B-A3B-Base is developed by Alibaba Cloud / Qwen Team.

Related comparisons