GLM-5.3-Flash pricing
GLM-5.3-Flash, Small-tier from Z.ai, costs $0.075 per 1M input tokens and $0.25 per 1M output tokens.
Input$0.075per 1M tokens
Output$0.25per 1M tokens
Context window1Mtokens
TierSmallZ.ai
Price your own workload against GLM-5.3-Flash in the calculator →
Specs and pricing
| Provider | Z.ai |
| Tier | Small |
| Context window | 1M tokens |
| Max output | 128K tokens |
| Input price | $0.075 / 1M tokens |
| Output price | $0.25 / 1M tokens |
| Cache read | $0.015 / 1M tokens |
| Modalities | text |
Note. Promotional price (50% off list of $0.15/$0.50) shown on page through 2026-09-09; list price may apply after that date.
What it costs at realistic volumes
Assuming a 4:1 input:output token ratio, a common shape for chat and RAG-style workloads:
| Volume (4:1 in:out ratio) | Input cost | Output cost | Total / month |
|---|---|---|---|
| 1,000,000 in / 250,000 out | $0.07 | $0.06 | $0.14 |
| 10,000,000 in / 2,500,000 out | $0.75 | $0.63 | $1.38 |
| 100,000,000 in / 25,000,000 out | $7.50 | $6.25 | $13.75 |
Cheaper alternatives
Same tier (Small), a different provider, and a lower blended cost at the 4:1 ratio used above:
| Model | Provider | $/1M in | $/1M out | At the 4:1 ratio |
|---|---|---|---|---|
| Meta-Llama-3.1-8B-Instruct-Turbo | DeepInfra | $0.02 | $0.04 | 78.2% cheaper blended |
| Solar Pro 4 | OpenRouter | $0.03 | $0.12 | 56.4% cheaper blended |
| GPT-OSS 20B | OpenRouter | $0.03 | $0.13 | 54.5% cheaper blended |
| schematron-v2-turbo | inference.net | $0.03 | $0.15 | 50.9% cheaper blended |
| Amazon Nova Micro | Amazon (Nova) | $0.035 | $0.14 | 49.1% cheaper blended |