GLM-5.3 API Pricing — $1.40/M input, $4.40/M output
Z.ai coding-first flagship: 50% stronger than 5.2 on code bench with 1M context and mandatory reasoning.
Full specs, context window and API limits →How much does GLM-5.3 cost per million tokens?
GLM-5.3, from Z.ai, charges $1.40 per million input tokens and $4.40 per million output tokens — $2.15 per million blended at a 3:1 input:output ratio. That makes it pricier than GLM-5.2 on a blended-token basis.
How much does GLM-5.3 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 | $0.3600 |
| Medium | 1,000 | 500 | $3.6000 |
| Long | 4,000 | 2,000 | $14.4000 |
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?
How much does GLM-5.3 cost at scale?
| Tokens / month | Est. cost (blended 3:1) |
|---|---|
| 100,000 | $0.21 |
| 1,000,000 | $2.15 |
| 10,000,000 | $21.50 |
| 100,000,000 | $215.00 |
How does GLM-5.3 compare with other models?
What is GLM-5.3 best for?
What should you explore next for GLM-5.3?
Which GLM-5.3 head-to-head comparisons are available?
What are common questions about GLM-5.3?
Is GLM-5.3 cheaper than GLM-5.2?
GLM-5.3 costs $2.15/M blended tokens, GLM-5.2 costs $2.15/M — GLM-5.2 is cheaper.
How much does 1 million tokens cost with GLM-5.3?
At a 3:1 input:output ratio, 1 million blended tokens costs approximately $2.15. Pure input costs $1.40/M; pure output costs $4.40/M.
What does GLM-5.3 cost at high volume?
At 100 million blended tokens a month, GLM-5.3 costs approximately $215.00. See the cost-at-scale table below for other volumes.