GLM 4.6 vs GPT-5.4 (Comparative Analysis)
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Overview
GLM 4.6 was released 5 months before GPT-5.4.
 GLM 4.6 |  GPT-5.4 | |
|---|---|---|
Model Provider The organization behind this AI's development | Z.AI | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 204.8K tokens | 1.1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 131.1K tokens | 128K tokens |
Release Date When this model first became publicly available | September 30, 2025 10 months ago September 30th, 2025 | March 5, 2026 4 months ago March 5th, 2026 |
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 | GPT-5.4 | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Optional | OptionalEffort: Extra High, High, Medium, Low, NoneDefault: Medium |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Other | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
GLM 4.6 is roughly 0.2x less expensive compared to GPT-5.4 for input tokens and roughly 0.1x less expensive for output tokens.
| GLM 4.6 | GPT-5.4 | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $0.50 per million tokens | $2.50 per million tokens |
Output Token Cost Cost per million output tokens | $2.00 per million tokens | $15.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.10 per million tokens | $0.25 per million tokens |
Long Context Pricing Rates for prompts with 272,000 or more tokens | ||
Input Token Cost Long-context input cost per million tokens | Not specified | $5.00 per million tokens |
Output Token Cost Long-context output cost per million tokens | Not specified | $22.50 per million tokens |
Cache Read Cost Long-context cache read cost per million tokens | Not specified | $0.50 per million tokens |
Benchmarks
Compare relevant benchmarks between GLM 4.6 and GPT-5.4.
| GLM 4.6 | GPT-5.4 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 28.7 (Artificial Analysis index; higher is better) | 51.4 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 45.8 (Artificial Analysis index; higher is better) | 71.1 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 17.7 (Artificial Analysis index; higher is better) | 41.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,207 Elo (#44 in Game Dev (54.6% win rate)) | 1,296 Elo (#19 in Game Dev (57.6% win rate)) |
At a Glance
Quick overview of what makes GLM 4.6 and GPT-5.4 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.GPT-5.4 by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1.1M token context window. Premium pricing at $2.50/M input and $15.00/M output tokens. Released March 5th, 2026.Explore More Comparisons
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Compare GPT-5.4 with:
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