GLM 4.6 vs Sonar Reasoning Pro (Comparative Analysis)
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Comparative Analysis: GLM 4.6 vs. Sonar Reasoning Pro
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Overview
Sonar Reasoning Pro was released 6 months before GLM 4.6.
 GLM 4.6 |  Sonar Reasoning Pro | |
|---|---|---|
Model Provider The organization behind this AI's development | Z.AI | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 204.8K tokens | 128K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 131.1K tokens | Not specified tokens |
Release Date When this model first became publicly available | September 30, 2025 10 months ago September 30th, 2025 | March 7, 2025 1 year ago March 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | March 31, 2025 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GLM 4.6 | Sonar Reasoning Pro | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Optional |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Other | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | Function CallingStructured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
GLM 4.6 is roughly 0.3x less expensive compared to Sonar Reasoning Pro for input tokens and roughly 0.3x less expensive for output tokens.
| GLM 4.6 | Sonar Reasoning Pro | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.50 per million tokens | $2.00 per million tokens |
Output Token Cost Cost per million output tokens | $2.00 per million tokens | $8.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.005 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.10 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between GLM 4.6 and Sonar Reasoning Pro.
| GLM 4.6 | Sonar Reasoning Pro | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 28.7 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 45.8 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 17.7 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,206 Elo (#45 in Game Dev (54.6% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes GLM 4.6 and Sonar Reasoning Pro unique.
GLM 4.6 by Z.AI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 204.8K token context window. Reasonably priced at $0.50/M input and $2.00/M output tokens. Released September 30th, 2025.Sonar Reasoning Pro by Perplexity understands both text and images, offers advanced reasoning. It can handle standard conversations with its 128K token context window. Reasonably priced at $2.00/M input and $8.00/M output tokens. Released March 7th, 2025.Explore More Comparisons
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Compare Sonar Reasoning Pro with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks