Model Comparison
Qwen3.6 Plus vs GLM-5.1Which is better in 2026?
GLM-5.1 has a slight edge in benchmark performance. Qwen3.6 Plus is 1.9x cheaper per token.
Verdict: Qwen3.6 Plus vs GLM-5.1 — which is better?
Qwen3.6 Plus (by Alibaba Cloud / Qwen Team) and GLM-5.1 (by Zhipu AI) 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.
Qwen3.6 Plus outperforms in 6 benchmarks (GPQA, HMMT 2025, HMMT Feb 26, LiveBench, MCP Atlas, TAU3-Bench), while GLM-5.1 is better at 8 benchmarks (Finance Agent v2, FrontierSWE, GDPval-AA, Humanity's Last Exam, NL2Repo, SWE-Bench Pro, Terminal-Bench 2.0, Toolathlon). GLM-5.1 has a slight edge in benchmark performance.
On price, Qwen3.6 Plus is roughly 1.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Qwen3.6 Plus also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Choose Qwen3.6 Plus if…
- cost matters — it's about 1.9x cheaper per token
- you process long inputs — it offers a 1,000,000 token context window
Choose GLM-5.1 if…
- you want the strongest raw capability — it leads on 10 of 16 shared benchmarks
- you want the most recent training data — it shipped Apr 2026
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Qwen3.6 Plus outperforms in 6 benchmarks (GPQA, HMMT 2025, HMMT Feb 26, LiveBench, MCP Atlas, TAU3-Bench), while GLM-5.1 is better at 8 benchmarks (Finance Agent v2, FrontierSWE, GDPval-AA, Humanity's Last Exam, NL2Repo, SWE-Bench Pro, Terminal-Bench 2.0, Toolathlon).
GLM-5.1 has a slight edge in benchmark performance.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Qwen3.6 Plus ($0.50/1M tokens) is 2.8x cheaper than GLM-5.1 ($1.40/1M tokens).
For output processing, Qwen3.6 Plus ($3.00/1M tokens) is 1.5x cheaper than GLM-5.1 ($4.40/1M tokens).
In conclusion, GLM-5.1 is more expensive than Qwen3.6 Plus.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Qwen3.6 Plus accepts 1,000,000 input tokens compared to GLM-5.1's 200,000 tokens. GLM-5.1 can generate longer responses up to 128,000 tokens, while Qwen3.6 Plus is limited to 65,536 tokens.
Input Capabilities
Supported data types and modalities
Qwen3.6 Plus supports multimodal inputs, whereas GLM-5.1 does not.
Qwen3.6 Plus can handle both text and other forms of data like images, making it suitable for multimodal applications.
Qwen3.6 Plus
GLM-5.1
License
Usage and distribution terms
Qwen3.6 Plus is licensed under a proprietary license, while GLM-5.1 uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
Qwen3.6 Plus was released on 2026-03-31, while GLM-5.1 was released on 2026-04-07.
GLM-5.1 is 0 month newer than Qwen3.6 Plus.
Mar 31, 2026
3 months ago
Apr 7, 2026
3 months ago
1w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Qwen3.6 Plus is available from Together. GLM-5.1 is available from FriendliAI, ZAI.
Qwen3.6 Plus
GLM-5.1
Outputs Comparison
Key Takeaways
Qwen3.6 Plus
View detailsAlibaba Cloud / Qwen Team
GLM-5.1
View detailsZhipu AI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Qwen3.6 Plus and GLM-5.1 side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Qwen3.6 Plus vs GLM-5.1.