Grok-4 Fast Non-Reasoning vs Qwen3 VL 4B Instruct
Comparing Grok-4 Fast Non-Reasoning and Qwen3 VL 4B Instruct across benchmarks, pricing, and capabilities.
xAI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Grok-4 Fast Non-Reasoning and Qwen3 VL 4B Instruct trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Qwen3 VL 4B Instruct is roughly 1.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4 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.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-4 Fast Non-Reasoning
- you process long inputs — it offers a 2,000,000 token context window
Choose Qwen3 VL 4B Instruct
- cost matters — it's about 1.2x cheaper per token
- you want the most recent training data — it shipped Sep 2025
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
0 reported for Grok-4 Fast Non-Reasoning · 45 for Qwen3 VL 4B Instruct
Grok-4 Fast Non-Reasoning and Qwen3 VL 4B Instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Grok-4 Fast Non-Reasoning ($0.20/1M tokens) is 2.0x more expensive than Qwen3 VL 4B Instruct ($0.10/1M tokens).
For output processing, Grok-4 Fast Non-Reasoning ($0.50/1M tokens) is 1.2x cheaper than Qwen3 VL 4B Instruct ($0.60/1M tokens).
In conclusion, Grok-4 Fast Non-Reasoning is more expensive than Qwen3 VL 4B Instruct.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4 Fast Non-Reasoning accepts 2,000,000 input tokens compared to Qwen3 VL 4B Instruct's 262,144 tokens. Qwen3 VL 4B Instruct can generate longer responses up to 262,144 tokens, while Grok-4 Fast Non-Reasoning is limited to 30,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Grok-4 Fast Non-Reasoning and Qwen3 VL 4B Instruct support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Fast Non-Reasoning
Qwen3 VL 4B Instruct
License
Usage and distribution terms
Grok-4 Fast Non-Reasoning is licensed under a proprietary license, while Qwen3 VL 4B Instruct uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Grok-4 Fast Non-Reasoning was released on 2025-08-28, while Qwen3 VL 4B Instruct was released on 2025-09-22.
Qwen3 VL 4B Instruct is 1 month newer than Grok-4 Fast Non-Reasoning.
Aug 28, 2025
1.0 years ago
Sep 22, 2025
11 months ago
3w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Grok-4 Fast Non-Reasoning is available from xAI. Qwen3 VL 4B Instruct is available from DeepInfra.
Grok-4 Fast Non-Reasoning
Qwen3 VL 4B Instruct
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Fast Non-Reasoning and Qwen3 VL 4B Instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Fast Non-Reasoning vs Qwen3 VL 4B Instruct.