GLM 5.2 vs Grok Build 0.1: price, context window and capabilities
GLM 5.2 (z-ai/glm-5.2) is a language model from Z.ai and Grok Build 0.1 (x-ai/grok-build-0.1) a multimodal language model from SpaceXAI; both are on the OceanToken API. Grok Build 0.1 costs less per token than GLM 5.2: $1.00 against $1.19 per 1M input tokens (16% less) and $2.00 against $3.74 per 1M output tokens (47% less). GLM 5.2 has the larger context window: 1.05M tokens (1,048,576) against 256K (256,000) for Grok Build 0.1. Both support tool calling, reasoning and structured outputs; only Grok Build 0.1 also lists image input and file input.
Side by side
| Spec | GLM 5.2 −35% | Grok Build 0.1 |
|---|---|---|
| Model | GLM 5.2z- | Grok Build 0.1x- |
| Publisher | Z.ai | SpaceXAI |
| Kind | Text | Text & vision |
| Context window | 1.05M tokens1,048,576 | 256K tokens256,000 |
| Input price | $1.19 / 1M tokens | $1.00 / 1M tokens |
| Output price | $3.74 / 1M tokens | $2.00 / 1M tokens |
| Cached input price | $0.26 / 1M tokens | $0.20 / 1M tokens |
| Web search price | – | $0.005 / search |
| Discount (vs official, top tier) | −35% | — |
| Inputs | text | text, images and files |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose Grok Build 0.1 to spend less per token: 16% less for input and 47% less for output than GLM 5.2.
- Choose GLM 5.2 for the longest inputs: its context window holds 1.05M tokens against 256K for Grok Build 0.1.
- Choose Grok Build 0.1 if you need image input and file input: GLM 5.2 does not list them.
- 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 5.2 Grok Build 0.1
Frequently asked questions
Which is cheaper, GLM 5.2 or Grok Build 0.1?
Grok Build 0.1. Grok Build 0.1 costs less per token than GLM 5.2: $1.00 against $1.19 per 1M input tokens (16% less) and $2.00 against $3.74 per 1M output tokens (47% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, GLM 5.2 or Grok Build 0.1?
GLM 5.2. GLM 5.2 has the larger context window: 1.05M tokens (1,048,576) against 256K (256,000) for Grok Build 0.1.
Can I call both GLM 5.2 and Grok Build 0.1 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-5.2 or x-ai/grok-build-0.1.
Models and publishers
GLM 5.2 · Grok Build 0.1 · All Z.ai models · All SpaceXAI models
More comparisons
DeepSeek V4.1 Flash vs Grok Build 0.1 · DeepSeek V4 Pro vs Grok Build 0.1 · DeepSeek V3.2 vs Grok Build 0.1 · GLM 5.3 Prime vs Grok Build 0.1 · All comparisons