GLM 5.3 Flash API pricing.
GLM 5.3 Flash is Z.ai’s model on the API market, released 26 Aug 2026. Prices are per million tokens in USD, as last read from the price list.
Each bar is this model's score in that area. The white tick marks the best score any model Epoch has tested reaches there.
The index combines many benchmarks into one general-capability score; the range is how sure Epoch is of the number. Each area score is this site's average of the model's Epoch results in that area, where 0 is what guessing would score and 100 is perfect. Compare every model, and value for money →
Source: Epoch AI, Capabilities & benchmarking (licensed CC BY 4.0). Data refreshed 2 November 2026. These are Epoch's own tests; other benchmark sites can rank models differently.
- Provider
- Z.ai
- Model id
z-ai/glm-5.3-flash- Input
- $0.029
- Output
- $0.092
- Cached input
- $0.029
- Context window
- 1.0M tokens
- Maximum output
- 131K tokens
- Takes
- text, image, video
- Returns
- text
- Tool use
- Yes
- Reasoning
- Yes
- Released
- 26 Aug 2026
- First tracked
- 17 Sept 2026
At $0.029 per million input tokens, GLM 5.3 Flash is dearer than 6 of the 340 models on the price list.
- Input $0.011 → $0.029 · Output $0.16 → $0.092
- Input $0.015 → $0.011 · Output $0.15 → $0.16
- Input $0.016 → $0.015 · Output $0.15 → $0.15
- Input $0.023 → $0.016 · Output $0.063 → $0.15
- Input $0.020 → $0.023 · Output $0.13 → $0.063
- Input $0.018 → $0.020 · Output $0.14 → $0.13
Want an email when this model's price changes? Tell us →
- GLM 5.2$0.006 in · $6.80 out
- GLM 4.7 Flash$0.061 in · $0.40 out
- GLM 5.3$0.080 in · $3.60 out
- GLM 4.5 Air$0.13 in · $0.85 out
- GLM 4.6V$0.30 in · $0.90 out
- GLM 5.3 FlashX$0.37 in · $1.25 out
- GLM 4.6$0.50 in · $2.00 out
- GLM 4.7$0.60 in · $2.20 out
Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.