GLM 5.3 FlashX
by Z.ai · z-ai/glm-5.3-flashx · #177 cheapest of 422 paid models
Prices updated Sep 19, 2026, 5:37 PM UTC · refreshed hourly
GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Built on the same hybrid sparse and linear attention architecture...
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5GPT-5.6 Sol
Pricing
Input
$0.37
per 1M tokens
Output
$1.25
per 1M tokens
Blended (3:1)
$0.59
3 input : 1 output
Cache read
$0.075
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for GLM 5.3 FlashX with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.59 | $0.039 | — |
| 50% | $0.479 | $0.0242 | −38% |
| 90% | $0.391 | $0.0124 | −68% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates (available for OpenAI / Anthropic / Google — not flagged for this creator). Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.00056 | $0.56 |
| Document summary | 8,000 | 1,000 | $0.00421 | $4.21 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.0136 | $13.60 |
| Long-context analysis | 150,000 | 5,000 | $0.0617 | $61.75 |
Specs
Context window
1.05M
tokens
Max output
131K
tokens
Input modalities
text, image, video
Tokenizer
Other