GLM 5.3 FlashX vs Qwen3.8 Max: price, context window and capabilities
GLM 5.3 FlashX (z-ai/glm-5.3-flashx) from Z.ai and Qwen3.8 Max (qwen/qwen3.8-max-0902) from Qwen are both multimodal language models on the OceanToken API. GLM 5.3 FlashX costs less per token than Qwen3.8 Max: $0.37 against $1.90 per 1M input tokens (81% less) and $1.25 against $5.70 per 1M output tokens (78% less). GLM 5.3 FlashX has the larger context window: 1.05M tokens (1,048,576) against 984K (983,616) for Qwen3.8 Max. Both support tool calling, reasoning, image input and video input; only Qwen3.8 Max also lists structured outputs.
Side by side
| Spec | GLM 5.3 FlashX | Qwen3.8 Max −25% |
|---|---|---|
| Model | GLM 5.3 FlashXz- | Qwen3.8 Maxqwen/ |
| Publisher | Z.ai | Qwen |
| Kind | Text, vision & video | Text, vision & video |
| Context window | 1.05M tokens1,048,576 | 984K tokens983,616 |
| Input price | $0.37 / 1M tokens | $1.90 / 1M tokens |
| Output price | $1.25 / 1M tokens | $5.70 / 1M tokens |
| Cached input price | $0.09 / 1M tokens | $0.25 / 1M tokens |
| Cache write price | – | $2.50 / 1M tokens |
| Discount (vs official, top tier) | — | −25% |
| Inputs | text, images and video | text, images and video |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Not listed | Yes |
About these prices
Which should you choose?
- Choose GLM 5.3 FlashX to spend less per token: 81% less for input and 78% less for output than Qwen3.8 Max.
- Choose GLM 5.3 FlashX for the longest inputs: its context window holds 1.05M tokens against 984K for Qwen3.8 Max.
- Choose Qwen3.8 Max if you need structured outputs: GLM 5.3 FlashX does not list it.
- Not sure? Call both with the same OceanToken API key and compare them on your own prompts; each request is billed per use from one prepaid balance.
Get API Key GLM 5.3 FlashX Qwen3.8 Max
Frequently asked questions
Which is cheaper, GLM 5.3 FlashX or Qwen3.8 Max?
GLM 5.3 FlashX. GLM 5.3 FlashX costs less per token than Qwen3.8 Max: $0.37 against $1.90 per 1M input tokens (81% less) and $1.25 against $5.70 per 1M output tokens (78% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, GLM 5.3 FlashX or Qwen3.8 Max?
GLM 5.3 FlashX. GLM 5.3 FlashX has the larger context window: 1.05M tokens (1,048,576) against 984K (983,616) for Qwen3.8 Max.
Can I call both GLM 5.3 FlashX and Qwen3.8 Max with one API key?
Yes. Both are on the OceanToken API at https://api.oceantoken.ai/v1: one API key and one prepaid balance call either model. Send the model id z-ai/glm-5.3-flashx or qwen/qwen3.8-max-0902.
Models and publishers
GLM 5.3 FlashX · Qwen3.8 Max · All Z.ai models · All Qwen models
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