GLM 5.3
Z.ai · z-ai/glm-5.3
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...
GLM 5.3 ranks #276 of 348 models in the default AI Benchmark Hub order (quality first, then cost). At $2.90 blended per million tokens, it is cheaper than 26% of models with published API pricing. Its 1,048,576-token context window is 4.0× the catalog median (262,144 tokens).
open weightstexttext->text
Context
Max context: 1048576
Max output: 262144
Max output: 262144
Pricing
Input / 1M: 1.40
Output / 1M: 4.40
Blend / 1M: 2.90
Output / 1M: 4.40
Blend / 1M: 2.90
Quality
Quality index: —
Provider
Provider: Z.ai
Moderated: no
Moderated: no
Monthly cost at this blended rate
Estimated API spend if every token is billed at $2.90per million (the blend of this model's input and output prices). Real bills depend on the input/output mix.
| Tokens / month | Est. cost (USD) |
|---|---|
| 1,000,000 | $2.90 |
| 10,000,000 | $29.00 |
| 100,000,000 | $290.00 |
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