SpaceXAI: Grok Build 0.1 vs Z.ai: GLM 5.1
They cost about the same for input tokens: SpaceXAI: Grok Build 0.1 $1.00 per M, Z.ai: GLM 5.1 $0.966 per M. SpaceXAI: Grok Build 0.1 is 1.5× cheaper for output tokens: SpaceXAI: Grok Build 0.1 costs $2.00 per M and Z.ai: GLM 5.1 costs $3.036 per M. SpaceXAI: Grok Build 0.1 reads more: SpaceXAI: Grok Build 0.1 takes up to 256,000 tokens of context and Z.ai: GLM 5.1 up to 204,800. SpaceXAI: Grok Build 0.1 accepts file, image, text; Z.ai: GLM 5.1 accepts text.
| SpaceXAI: Grok Build 0.1 | Z.ai: GLM 5.1 | |
|---|---|---|
| Model id | x-ai/grok-build-0.1 | z-ai/glm-5.1 |
| Input | $1.00 per M | $0.966 per M |
| Output | $2.00 per M | $3.036 per M |
| Context length | 256,000 tokens | 204,800 tokens |
| Accepts | file, image, text | text |
| Produces | text | text |
| Served by | xai | zai |
Prices are the providers' list prices per million tokens, as of . Both run on your own provider key through one OpenAI-compatible endpoint, with no fee on the tokens.