GLM-5.3 Flash API Pricing — $0.15/M input, $0.50/M output
Native multimodal Flash: beats GLM-5.2 at a fraction of the cost with vision built into the coding loop.
Full specs, context window and API limits →How much does GLM-5.3 Flash cost per million tokens?
GLM-5.3 Flash, from Z.ai, charges $0.15 per million input tokens and $0.50 per million output tokens — $0.24 per million blended at a 3:1 input:output ratio. That makes it pricier than Qwen 3.8 Flash on a blended-token basis.
How much does GLM-5.3 Flash cost per 1,000 requests?
Computed from generated token pricing. Each row assumes the listed input and output tokens per request; this model has no measured verbosity factor, so the unadjusted output estimate is shown.
| Request shape | Input tokens | Output tokens | Cost / 1,000 requests |
|---|---|---|---|
| Short | 100 | 50 | $0.0400 |
| Medium | 1,000 | 500 | $0.4000 |
| Long | 4,000 | 2,000 | $1.6000 |
Formula: ((input price × input tokens) + (output price × output tokens × verbosity factor)) ÷ 1,000,000 × 1,000. Assumptions: short 100/50, medium 1,000/500, long 4,000/2,000 input/output tokens per request. Unadjusted — no measured verbosity factor is available.
How fast is GLM-5.3 Flash?
How much does GLM-5.3 Flash cost at scale?
| Tokens / month | Est. cost (blended 3:1) |
|---|---|
| 100,000 | $0.02 |
| 1,000,000 | $0.24 |
| 10,000,000 | $2.38 |
| 100,000,000 | $23.75 |
How does GLM-5.3 Flash compare with other models?
What is GLM-5.3 Flash best for?
What should you explore next for GLM-5.3 Flash?
What are common questions about GLM-5.3 Flash?
Is GLM-5.3 Flash cheaper than Qwen 3.8 Flash?
GLM-5.3 Flash costs $0.24/M blended tokens, Qwen 3.8 Flash costs $0.23/M — Qwen 3.8 Flash is cheaper.
How much does 1 million tokens cost with GLM-5.3 Flash?
At a 3:1 input:output ratio, 1 million blended tokens costs approximately $0.24. Pure input costs $0.15/M; pure output costs $0.50/M.
What does GLM-5.3 Flash cost at high volume?
At 100 million blended tokens a month, GLM-5.3 Flash costs approximately $23.75. See the cost-at-scale table below for other volumes.