Tencent: GLM-5.3 FlashX (Tencent Cloud)
GLM-5.3 FlashX (Tencent Cloud) is a reasoning model from Tencent released on Sep 18, 2026. It reads text and images and writes text, with a 1M token context window and up to 131K tokens per reply.
Show moreShow less
It costs $0.37 per million input tokens and $1.25 per million output tokens. Cached input bills at $0.075, 80% less than fresh input.
It supports tool calling, structured JSON output and prompt caching.
- Modalities
- In / out price
- $0.37 / $1.25 per 1M
- Context
- 1M
- Max output
- 131K
- Released
- Sep 18, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
GLM-5.3 FlashX (Tencent Cloud) pricing
USD, as listed on Oct 29, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.37 / 1M tokens | |
|---|---|---|
| Output | $1.25 / 1M tokens | |
| Cached input (read) | $0.075 / 1M tokens | 80% off input |
What GLM-5.3 FlashX (Tencent Cloud) costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call GLM-5.3 FlashX (Tencent Cloud) through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning - Temperature
temperature
Alternatives to GLM-5.3 FlashX (Tencent Cloud)
Models that take the same inputs and call tools, closest in price, cheaper ones first.
- 1.05M context
Reads text, images, files, audio and video. Tool calling, structured output, reasoning. Served by 26 providers.
by googleMar 3, 2026$0.25/M input tokens$1.50/M output tokens26 providers
- Index 46.3
Reads text, images, audio and video. Tool calling, structured output, reasoning. Served by 19 providers.
by xiaomiSep 22, 20261.05M context$0.435/M input tokens$0.87/M output tokens19 providers
- Index 39.5
Reads text and images. Tool calling, structured output, reasoning. Served by 61 providers.
by deepseekSep 10, 20261M context$0.30/M input tokens$1.20/M output tokens61 providers
- Index 17.5
Reads text and images. Tool calling, structured output, reasoning. Served by 12 providers.
by metaAug 10, 2026131K context$0.30/M input tokens$1.20/M output tokens12 providers
- Index 29.2
Reads text, images and video. Tool calling, structured output, reasoning. Served by 44 providers.
by minimaxJun 1, 20261M context$0.30/M input tokens$1.20/M output tokens44 providers
- 1.05M context
Reads text, images and files. Tool calling, structured output, reasoning. Served by 42 providers.
by openaiJul 9, 2026$0.20/M input tokens$1.20/M output tokens42 providers
More from Tencent
- 1.02M context
Reads text. Tool calling, structured output, reasoning. Served by 16 providers.
by tencentAug 28, 2026$0.834/M input tokens$2.50/M output tokens16 providers
- Index 25.3
Reads text. Tool calling, structured output, reasoning. Served by 17 providers.
by tencentJul 6, 2026256K context$0.14/M input tokens$0.58/M output tokens17 providers
- 8K context
Reads text.
by tencentJun 12, 2026$0.044/M input tokens$0.177/M output tokens
- 8K context
Reads text. Served by 2 providers.
by tencentMay 21, 2026$0.0466/M input tokens$0.1873/M output tokens2 providers
- 8K context
Reads text. Structured output. Served by 2 providers.
by tencentMay 21, 2026$0.0783/M input tokens$0.3121/M output tokens2 providers
- 8K context
Reads text. Structured output. Served by 2 providers.
by tencentMay 21, 2026$0.0783/M input tokens$0.3121/M output tokens2 providers
GLM-5.3 FlashX (Tencent Cloud) questions
How much does the GLM-5.3 FlashX (Tencent Cloud) API cost?
$0.37 per million input tokens and $1.25 per million output tokens, with cached input at $0.075. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of GLM-5.3 FlashX (Tencent Cloud)?
1,000,000 tokens of input, and it can write up to 131,072 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Does GLM-5.3 FlashX (Tencent Cloud) support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is GLM-5.3 FlashX (Tencent Cloud) open source?
No. Tencent serves it through an API only, so you cannot download the weights or host it yourself.
When was GLM-5.3 FlashX (Tencent Cloud) released?
Sep 18, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 29, 2026. The summary is written from these facts.