GLM-5.3-Flash pricing & specs
Z.AI (Zhipu) · released 2026-08-26 · ● verified 2026-10-11
input / 1M$0.15
output / 1M$0.50
context1M
max output131.1K
// price history ($/1M tokens)
// cheaper or similar alternatives
| model | in | out | ctx | vs GLM-5.3-Flash |
|---|---|---|---|---|
| Gemini 2.5 Flash-Lite | $0.10 | $0.40 | 1.05M | −26.3% |
| Gemini 3.1 Flash Lite | $0.25 | $1.50 | 1.05M | +136.8% |
| Gemini 2.5 Flash | $0.30 | $2.50 | 1.05M | +257.9% |
| Gemini 3.5 Flash Lite | $0.30 | $2.50 | 1.05M | +257.9% |
| Gemini 3 Flash Preview | $0.50 | $3.00 | 1.05M | +373.7% |
// price by host
| host | in $/1M | out $/1M |
|---|---|---|
| Baseten | $0.15 | $0.50 |
| Cloudflare Workers AI | $0.15 | $0.50 |
| DeepInfra | $0.15 | $0.50 |
| Fireworks AI | $0.15 | $0.50 |
| Nebius | $0.15 | $0.50 |
| Novita AI | $0.15 | $0.50 |
| Together AI | $0.15 | $0.50 |
// faq
How much does GLM-5.3-Flash cost?
GLM-5.3-Flash costs $0.15 per million input tokens and $0.50 per million output tokens. At 50M input and 10M output tokens per month that is about $12.50.
What is the context window of GLM-5.3-Flash?
1M tokens, with up to 131.1K output tokens per request.
Does GLM-5.3-Flash support prompt caching?
Yes. Cached input tokens cost $0.03 per million and cache writes cost $0 per million.
What are cheaper alternatives to GLM-5.3-Flash?
Gemini 2.5 Flash-Lite ($0.10 in / $0.40 out) offer the same input types and capabilities for less.
Is GLM-5.3-Flash open weights?
Yes. It is available from 7 tracked hosts; the cheapest is Baseten at $0.15 input and $0.50 output per million tokens.
// spec sheet
- input / 1M
- $0.15
- output / 1M
- $0.50
- cache read / 1M
- $0.03
- cache write / 1M
- $0
- blended (3:1)
- $0.2375
- context
- 1M
- max output
- 131.1K
- input types
- text · image · video · pdf
- reasoning
- yes
- tool calling
- yes
- structured output
- yes
- open weights
- yes
- knowledge cutoff
- n/a
- price source
- Z.AI (Zhipu)
// cost calculator
| model | in $/1M | out $/1M | = monthly |
|---|---|---|---|
| Gemini 2.5 Flash-Lite | $0.10 | $0.40 | $9.00 |
| GLM-5.3-Flash | $0.15 | $0.50 | $12.50 |
| Gemini 3.1 Flash Lite | $0.25 | $1.50 | $27.50 |
| Gemini 2.5 Flash | $0.30 | $2.50 | $40.00 |
Base-tier list prices. Long-context tiers, caching and batch discounts are not included.