Glm 5.3 Flash API Pricing

These are the tracked rates, not a live quote. Hosted-provider choice, region, long-context tiers, caching, batch discounts, and temporary promotions can change the actual bill. Open-weight availability does not mean hosted inference is free. Workload examples assume the listed standard input and output rates, with no cache hits or discounts.

Z.ai pricing catalog — check current offerings and rate tiers. This catalog may not list historical models or third-party hosted endpoints.

Publisher-reported pricing notes

• The lower launch prices are promotional, so AI IQ records the durable $0.15 input and $0.50 output list prices.

Official release and model references

These references document the model and its release; not every reference is a pricing table. Confirm the applicable endpoint and billing tier with your inference provider before purchase.

• z.ai/blog/glm-5.3-flash
• docs.z.ai/guides/vlm/glm-5.3-flash
• docs.z.ai/guides/overview/pricing
• huggingface.co/zai-org/GLM-5.3-Flash

Computed straight from the list prices above — token counts are illustrative workload sizes, not measurements of Glm 5.3 Flash.

In AI IQ's scoring, Glm 5.3 Flash's list price is adjusted by a token-usage multiplier of 2.051 (measured from real benchmark runs), giving an effective cost of $1.33 per 1M input + output tokens. That places it #44 of 153 models on the effective-cost ranking (lower is cheaper). Some models spend far more tokens than others on the same task, so effective cost compares what a unit of work really costs. Method details are on the methodology page; see all models on the cost charts and the falling cost of intelligence over time.

Models with a lower effective cost that score within a few IQ points of Glm 5.3 Flash (IQ 119), or better.