Grok-4 Fast Non-Reasoning vs Qwen3.5-397B-A17B Comparison
Comparing Grok-4 Fast Non-Reasoning and Qwen3.5-397B-A17B across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Grok-4 Fast Non-Reasoning and Qwen3.5-397B-A17B 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
For input processing, Grok-4 Fast Non-Reasoning ($0.20/1M tokens) is 3.0x cheaper than Qwen3.5-397B-A17B ($0.60/1M tokens).
For output processing, Grok-4 Fast Non-Reasoning ($0.50/1M tokens) is 7.2x cheaper than Qwen3.5-397B-A17B ($3.60/1M tokens).
In conclusion, Qwen3.5-397B-A17B is more expensive than Grok-4 Fast Non-Reasoning.*
* 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 Qwen3.5-397B-A17B's 262,144 tokens. Qwen3.5-397B-A17B can generate longer responses up to 64,000 tokens, while Grok-4 Fast Non-Reasoning is limited to 30,000 tokens.
Input Capabilities
Supported data types and modalities
Both Grok-4 Fast Non-Reasoning and Qwen3.5-397B-A17B support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Fast Non-Reasoning
Qwen3.5-397B-A17B
License
Usage and distribution terms
Grok-4 Fast Non-Reasoning is licensed under a proprietary license, while Qwen3.5-397B-A17B 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 Qwen3.5-397B-A17B was released on 2026-02-16.
Qwen3.5-397B-A17B is 6 months newer than Grok-4 Fast Non-Reasoning.
Aug 28, 2025
6 months ago
Feb 16, 2026
3 weeks ago
5mo 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. Qwen3.5-397B-A17B is available from Novita. The availability of providers can affect quality of the model and reliability.
Grok-4 Fast Non-Reasoning
Qwen3.5-397B-A17B
Outputs Comparison
Key Takeaways
Qwen3.5-397B-A17B
View detailsAlibaba Cloud / Qwen Team
Detailed Comparison
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