HFAI Cloud · model
GLM 5.3 Flash
on HFAI Cloud.
Charged from the same prepaid balance as every other model.
What the catalogue publishes.
Read from the live model catalogue
at the moment this page was built.
| Value | As published |
|---|---|
| Identifier to send | glm-5.3-flash |
| Name in the catalogue | GLM 5.3 Flash |
| Context window | 128,000 tokens (128K) |
| Price, per 1M input tokens | $0.15 |
| Price, per 1M output tokens | $0.50 |
| Free for anonymous callers | No |
Send it one request.
The same endpoint, key and request shape
as every other model in the catalogue.
The example below is complete apart from the key. The endpoint speaks the OpenAI chat-completions shape, so a client that already sends a model name, a message list and a bearer token needs no wrapper around it: point the base URL at https://api.heartflowai.net/v1, paste a key in place of the placeholder, and name this model with the identifier in the table above.
Streaming, tool calling and the error codes behave the same here as they do for the rest of the catalogue, so a harness you have already wired up keeps working when you change that one string.
curl https://api.heartflowai.net/v1/chat/completions \
-H "Authorization: Bearer hfai_live_…" \
-H "Content-Type: application/json" \
-d '{"model":"glm-5.3-flash","messages":[{"role":"user","content":"Hello HFAI"}]}'
Paste a key where the placeholder is. The request shape, the streaming rules and the error codes are documented in the API reference.
What is specific to it.
Read from the live catalogue,
plus one dated source.
GLM 5.3 Flash costs $0.15 per 1M in and $0.50 per 1M out.
GLM 5.3 Flash sits jointly 4th of 11 in and 3rd of 11 out, priced $0.15 in and $0.50 out, the floor at $0.07 on GPT-OSS 20B.
GLM 5.3 Flash charges $0.50 out for every $0.15 of input.
GLM 5.3 Flash takes 128,000 tokens (128K) of context at $0.15 in and $0.50 out, with 5 rows above it.
GLM 5.3 Flash needs credits; the free tier covers GPT-OSS 120B.
GLM 5.3 Flash comes from Z.ai under MIT: $0.15 in, $0.50 out.
The publisher recorded for GLM 5.3 Flash is Z.ai.
GLM 5.3 Flash is undercut on output by 2 rows, down to $0.30.
GLM 5.3 Flash is requested as glm-5.3-flash, at $0.15 in, $0.50 out.
- Developer. glm-5.3-flash is built by Z.ai; checked · https://huggingface.co/zai-org/GLM-5.3-Flash
- Licence. glm-5.3-flash comes under the MIT licence; checked · https://huggingface.co/zai-org/GLM-5.3-Flash
- Upstream model card. glm-5.3-flash has its card at https://huggingface.co/zai-org/GLM-5.3-Flash; checked · https://huggingface.co/zai-org/GLM-5.3-Flash
Every figure above comes from the 11 rows the live catalogue returned when the page was built, and is recomputed on every check, so it cannot quietly stop being true. The 3 sourced lines are the only facts here read from outside it. No speed, quality or benchmark figure is claimed on this page.
The rest of the catalogue.
This model shares one endpoint, one balance and one API key with every other model on offer, so moving between them costs a single string.