AI BriefingHow to Build an Ultra-Fast API for GLM-5.2
Key point
Baseten has launched an ultra-fast API dedicated to GLM-5.2 that maximizes performance by minimizing latency.
Details
Baseten has built the world's fastest API for the GLM-5.2 model, achieving speeds of up to 280 tokens per second and an average of 100 tokens per second. Through recent performance optimizations, it achieved more than a 2x performance improvement over the initial launch date, as demonstrated through Artificial Analysis benchmarks.
The newly launched GLM-5.2-Fast API focuses on reducing latency for coding and agentic use. To achieve this, the following technical optimizations were applied.
- Changed parallelization approach: Unlike the standard API, which uses ADP (Attention Data Parallelism) for throughput, the Fast API uses only Tensor and Expert Parallelism for latency optimization.
- Reduced batch size: The maximum batch size was significantly reduced to minimize resource contention between requests.
This Fast API runs on the same NVIDIA B200 GPU as the standard API, but since throughput is sacrificed for reduced latency, the token price is set 50% higher. Baseten plans to further improve performance by additionally refining its Speculative Decoding algorithm going forward.
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