LLMGLM 5.3 Flash API pricing variable pricing
GLM 5.3 Flash by Particle AI costs $0.12 per 1M input tokens and $0.40 per 1M output tokens (1M in + 1M out = $0.52).
- API model id
glm-5.3-flash- Input / 1M
- $0.12
- Output / 1M
- $0.40
- Cached input / 1M
- $0.03
- Context window
- —
- Notes
- Particle AI API (OpenAI-compatible, api.particle.ai/v1), USD per 1M tokens, default peak (standard) prices; account-specific overrides may apply. Prepaid credits.
- Source
- https://docs.particle.ai/usage-billing
- Provider type
- Inference host (HQ: US)
- Regions
- US
- EU data residency
- no — Privacy Policy §10: the Services are initially intended for the United States and personal information may be processed and stored in the United States; Terms allow use only in the US and other expressly supported locations. No EU region offered. Standard inference uses zero data retention (ZDR policy).
- Last verified
- 2026-11-12
Variable pricing
The effective price of this model depends on the request. Figures above are the base (short-context / peak) tier.
- Depends on time of day: Off-peak 20:30–04:00 America/New_York: 50% off every token rate ($0.06 input / $0.015 cached / $0.2 output per 1M).
- Depends on completion window / service tier: Flex service tier: a further 50% off input, cached and output on top of the period's rates (account entitlement needed).
Cost estimate
| Provider | Model | Cost |
|---|---|---|
| Particle AI | GLM 5.3 Flash | $0.22 |
Uses standard list prices (no caching, batch or off-peak discounts). €, CHF and ₹ rows are priced in that currency by the provider and not converted, so compare them with care. ₹ rows also show ≈ USD at the RBI reference rate of ₹93.8579 per USD (2026-11-09).
Other Particle AI models
- Particle 1: $0.25 / $1.00
- DeepSeek V4.1 Flash 1017: $0.25 / $1.00