Model Comparison
Qwen3.5-397B-A17B vs GLM-5.1
GLM-5.1 shows notably better performance in the majority of benchmarks. Qwen3.5-397B-A17B is 1.6x cheaper per token.
Performance Benchmarks
Comparative analysis across standard metrics
Qwen3.5-397B-A17B outperforms in 2 benchmarks (GPQA, HMMT 2025), while GLM-5.1 is better at 6 benchmarks (AIME 2026, BrowseComp, Humanity's Last Exam, IMO-AnswerBench, Terminal-Bench 2.0, Toolathlon).
GLM-5.1 shows notably better performance in the majority of benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Qwen3.5-397B-A17B ($0.60/1M tokens) is 2.3x cheaper than GLM-5.1 ($1.40/1M tokens).
For output processing, Qwen3.5-397B-A17B ($3.60/1M tokens) is 1.2x cheaper than GLM-5.1 ($4.40/1M tokens).
In conclusion, GLM-5.1 is more expensive than Qwen3.5-397B-A17B.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
GLM-5.1 has 357.0B more parameters than Qwen3.5-397B-A17B, making it 89.9% larger.
Context Window
Maximum input and output token capacity
Qwen3.5-397B-A17B accepts 262,144 input tokens compared to GLM-5.1's 200,000 tokens. GLM-5.1 can generate longer responses up to 128,000 tokens, while Qwen3.5-397B-A17B is limited to 64,000 tokens.
Input Capabilities
Supported data types and modalities
Qwen3.5-397B-A17B supports multimodal inputs, whereas GLM-5.1 does not.
Qwen3.5-397B-A17B can handle both text and other forms of data like images, making it suitable for multimodal applications.
Qwen3.5-397B-A17B
GLM-5.1
License
Usage and distribution terms
Qwen3.5-397B-A17B is licensed under Apache 2.0, while GLM-5.1 uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
MIT
Open weights
Release Timeline
When each model was launched
Qwen3.5-397B-A17B was released on 2026-02-16, while GLM-5.1 was released on 2026-04-07.
GLM-5.1 is 2 months newer than Qwen3.5-397B-A17B.
Feb 16, 2026
1 months ago
Apr 7, 2026
6 days ago
1mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Qwen3.5-397B-A17B is available from Novita. GLM-5.1 is available from ZAI.
Qwen3.5-397B-A17B
GLM-5.1
Outputs Comparison
Key Takeaways
Qwen3.5-397B-A17B
View detailsAlibaba Cloud / Qwen Team
GLM-5.1
View detailsZhipu AI
Detailed Comparison
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FAQ
Common questions about Qwen3.5-397B-A17B vs GLM-5.1