GLM 5.3 API Benchmarks, Pricing & Provider Data
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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....
Category Performance
Observed-capability estimates with uncertainty reported separately from independent benchmark families.
- Coverage
- 2 / 8
- Methodology
- V3.0
#1Coding63.3Provisional1/4 Measured dimensions
#2Reasoning61.2Provisional1/4 Measured dimensions
Specifications
Input and output token limits for this model, plus how it ranks on long-context understanding.
Features
Rankings
Excels at
Detailed scores
Updated: Aug 20, 2026Speed & latency
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Output speed79.6 tok/s#42 / 73Time to first token1.51 s#45 / 73
Speed & latency
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Pricing
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Input price$1.40/M#132 / 180Output price$4.40/M#115 / 180
Pricing
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Agents
V3.0undefined metric} other undefined metrics}} · No data
No data80% interval30.8–69.20/4 Measured dimensions
Agents
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Coding
V3.0undefined metric} other undefined metrics}} · Provisional
Score63.380% interval47.3–79.21/4 Measured dimensionsSciCode56.5%#7 / 204
Coding
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Reasoning
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Score61.280% interval47.3–75.21/4 Measured dimensionsGPQA91.7%#18 / 211HLE42.3%#21 / 208
Reasoning
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Knowledge
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No data80% interval30.8–69.20/4 Measured dimensions
Knowledge
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Math
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No data80% interval30.8–69.20/4 Measured dimensions
Math
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Multilingual
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No data80% interval30.8–69.20/4 Measured dimensions
Multilingual
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Multimodal
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No data80% interval30.8–69.20/4 Measured dimensions
Multimodal
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Instruction following
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No data80% interval30.8–69.20/4 Measured dimensions
Instruction following
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OpenRouter endpoints
1 endpointsThird-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.
| Provider endpoint | Input | Output | 1d uptime | 30m latency | 30m throughput | Context / output |
|---|---|---|---|---|---|---|
Z.AI z-ai/fp8 | $1.40/M | $4.40/M | 100.0% | — | — | undefined tokens / undefined tokens |
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