GLM 5.3 Flash
by Z.ai · z-ai/glm-5.3-flash · #63 cheapest of 422 paid models
Prices updated Sep 20, 2026, 12:34 AM UTC · refreshed hourly
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5GPT-5.6 Sol
Pricing
Input
$0.09
per 1M tokens
Output
$0.30
per 1M tokens
Blended (3:1)
$0.143
3 input : 1 output
Cache read
$0.018
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for GLM 5.3 Flash with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.143 | $0.00948 | — |
| 50% | $0.115 | $0.00588 | −38% |
| 90% | $0.094 | $0.003 | −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 | $0.000135 | $0.135 |
| Document summary | 8,000 | 1,000 | $0.00102 | $1.02 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.0033 | $3.30 |
| Long-context analysis | 150,000 | 5,000 | $0.015 | $15.00 |
Performance
Intelligence Index
41.9
AA composite quality
Coding Index
71.5
Math Index
—
Agentic Index
51.2
Output speed
—
median
Time to first token
—
median
Time to first answer
—
after reasoning tokens
Design Arena Elo
| Category | Elo |
|---|---|
| Website | 1,284 |
| UI components | 1,338 |
| Data viz | 1,274 |
| SVG | 1,313 |
| 3D | 1,353 |
| Game dev | 1,311 |
| Code categories | 1,298 |
| ASCII art | 1,288 |
Specs
Context window
1.31M
tokens
Max output
131K
tokens
Input modalities
text, image, video
Tokenizer
Other