Z.ai · Model identity
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...
2pricing routes
What published route metadata supports
CachingHugging FaceReasoningStructured outputTool use
Input modalities
Text
Supported API parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_pparallel_tool_callspresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p
Only source-backed fields are filled
Release dateNot independently verified
Knowledge cutoffNot independently verified
Open weightsNot independently verified
OpenRouter catalog date2026-08-18
LLMPrice does not infer a release date, knowledge cutoff, or open-weight status from a model name, Hugging Face link, or pricing route.
Could this workload cost less?Compare GLM 5.3 with cheaper models using the same workload.
Find cheaper alternatives →| Endpoint / route | Model ID | Input | Cached | Output | Context | Source |
|---|---|---|---|---|---|---|
| OpenRouterBatch | z-ai/glm-5.3:batch | $0.7 | $0.13 | $2.2 | 1.05M | OpenRouter API ↗ |
| OpenRouterStandard | z-ai/glm-5.3 | $0.84 | $0.156 | $2.64 | 1.31M | OpenRouter API ↗ |
Hugging Face references
Presence of a Hugging Face ID is not treated as proof that model weights are open.
8 verified price changes since Aug 26, 2026
1 route availability change recorded. No earlier prices are inferred.
Input / 1M$0.84Aug 26, 2026 → Sep 22, 2026
Output / 1M$2.64Aug 26, 2026 → Sep 22, 2026
- Sep 22, 2026OpenRouter · Standard
Input $0.91 → $0.84 · Cached input $0.169 → $0.156 · Output $2.86 → $2.64
- Sep 21, 2026OpenRouter · Standard
Input $0.896 → $0.91 · Cached input $0.1664 → $0.169 · Output $2.82 → $2.86
- Sep 20, 2026OpenRouter · Standard
Input $0.91 → $0.896 · Cached input $0.169 → $0.1664 · Output $2.86 → $2.82
- Sep 19, 2026OpenRouter · Standard
Input $1.4 → $0.91 · Cached input $0.26 → $0.169 · Output $4.4 → $2.86
- Sep 14, 2026OpenRouter · Standard
Input $1.09 → $1.4 · Cached input $0.2028 → $0.26 · Output $3.43 → $4.4
- Sep 13, 2026OpenRouter · Standard
Input $1.4 → $1.09 · Cached input $0.26 → $0.2028 · Output $4.4 → $3.43