Z.ai: GLM 5.3z-ai
Bottom Line
Z.ai: GLM 5.3: $0.08/1M input, $1.40/1M output, 1.0M context, CPS grade S. GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
API Pricing (per 1M tokens)
| Input | $0.08 |
| Output | $1.40 |
| Cache Read | — |
| Cache Write | — |
| Blended (3:1) | $0.41 |
Specs & Performance
| Context Length | 1.0M |
| Max Output | 944K |
| Intelligence | 45 |
| Coding | 75 |
| Math | — |
| Speed | 69 tok/s |
| TTFT | 2.57s |
| CPS Grade | S |
| Input / Output Modalities | text → text |
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FAQ
How much does the Z.ai: GLM 5.3 API cost?
Z.ai: GLM 5.3 costs $0.08/1M input tokens and $1.40/1M output tokens. Blended cost at a 3:1 ratio is about $0.41/1M tokens.
What is the context window of Z.ai: GLM 5.3?
Z.ai: GLM 5.3 supports a 1.0M token context window with up to 944K output tokens.
Is Z.ai: GLM 5.3 worth it?
Z.ai: GLM 5.3 has a CPS grade of S (score 73), intelligence index 45, coding index 75. Use the compare page to benchmark against rivals.