Specifications
Context Window
—
Input Price/1M
$0.15
#313 of 806
Output Price/1M
$0.50
Parameters
—
Speed
66 tok/s
#286 of 651
Latency (TTFT)
2.7s
Cost per Task
176
AA Score / US$ · higher = better
Benchmarks
GLM-5.3-Flash results on the main AI model evaluation benchmarks. Higher scores indicate better performance.
Agentic
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| AA Agentic Index | 50.9 | 100.0 | Artificial Analysis official API |
Coding
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| AA Coding Index | 71.5 | 100.0 | Artificial Analysis official API |
overall
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LMArena Elo | 1474.0 | 2000.0 | Crowdsourced blind pairwise comparisons |
| AA Intelligence Index | 41.8 | 100.0 | Artificial Analysis official API |
Information
- Release date
- August 26, 2026
- Tool Calling
- ❌ Not supported
- Vision
- ❌ Not supported
- Audio
- ❌ Not supported
Full Analysis: GLM-5.3-Flash
What is GLM-5.3-Flash?
GLM-5.3-Flash is an AI model developed by Z AI, classified as a text model. It focuses on text processing and natural language generation. As a proprietary model, it is available via Z AI's cloud API.
Pricing & Costs in 2026
GLM-5.3-Flash is usage-based, priced at $0.15/1M input tokens and $0.5/1M output tokens. For context: 1 million tokens is approximately 750,000 words, or about 10 average-length books. At this aggressive price point, it is one of the most cost-effective options on the market, ideal for high-volume applications like chatbots, bulk document analysis, and automation.
Benchmarks & Performance
GLM-5.3-Flash was evaluated on 4 different benchmarks, covering categories like Agentic, Coding, overall. Results show exceptional performance across available evaluations.
It's important to note that benchmarks measure specific aspects and don't capture the full user experience. Factors like instruction adherence, behavior in long conversations, and real-world task quality vary significantly between models and aren't always reflected in standard scores.
Recommended Use Cases
GLM-5.3-Flash specializes in text, offering advanced capabilities for creating and processing text content.
Comparison with Alternatives
In the 2026 AI model ecosystem, GLM-5.3-Flash competes directly with similarly capable models. Z AI competes in this segment against OpenAI, Anthropic, Google, and Meta. The choice between models depends on the specific use case, budget, latency requirements, and need for features like multimodality and tool calling.
For a detailed side-by-side comparison, use our comparison tool or check the overall model ranking.
Frequently Asked Questions
What is GLM-5.3-Flash?
GLM-5.3-Flash is an AI model developed by Z AI. It is a text model.
How much does GLM-5.3-Flash cost?
GLM-5.3-Flash costs $0.15/1M input tokens and $0.5/1M output tokens. For heavy usage (e.g., a chatbot handling 100k messages/month), costs can range from $10 to $1,000 depending on volume.
How does GLM-5.3-Flash compare with other models?
In available benchmarks, GLM-5.3-Flash scored: AA Agentic Index: 50.9/100, AA Coding Index: 71.5/100, LMArena Elo: 1474/2000. See the full table above for a detailed comparison.
Is GLM-5.3-Flash open source?
No, GLM-5.3-Flash is a proprietary model from Z AI. It is available via cloud API. For open source alternatives, check our open source model ranking.
What is GLM-5.3-Flash best for?
GLM-5.3-Flash excels at general-purpose language tasks.
Last updated: October 16, 2026 • View methodology →