Model comparison - Similar price, same tier
GLM-5.3 vs Grok Build 0.1
GLM-5.3 is from Z.ai and Grok Build 0.1 is from xAI. On list price, Grok Build 0.1 charges 29% less than GLM-5.3 for input ($1 vs $1.40 per 1M tokens), and GLM-5.3 charges 2.2x Grok Build 0.1's output price ($4.40 vs $2 per 1M tokens). GLM-5.3 has a 1,000,000-token context window and Grok Build 0.1 256,000 tokens; GLM-5.3 returns up to 128,000 output tokens per response, and no primary source states a max output for Grok Build 0.1. GLM-5.3 was released on August 18, 2026 and Grok Build 0.1 on May 19, 2026. GLM-5.3 publishes open weights (GLM-5.3 license (Hugging Face license tag: other)); Grok Build 0.1 is closed-weights.
Last verified from each provider's pricing page. All sources
Side-by-side specs
| Spec | GLM-5.3 | Grok Build 0.1 |
|---|---|---|
| Provider | Z.ai | xAI |
| Input / 1M tokens | $1.40 | $1 |
| Output / 1M tokens | $4.40 | $2 |
| Cache read / 1M | $0.26 | $0.20 |
| Long-context rates above | - | 200,000 tokens |
| Context window | 1,000,000 | 256,000 |
| Max output | 128,000 | - |
| Release date | ||
| Weights | Open | Closed |
| License | GLM-5.3 license (Hugging Face license tag: other) | - |
| API model id | glm-5.3 | grok-build-0.1 |
| AI Gateway id | zai/glm-5.3 | spacexai/grok-build-0.1 |
| Last verified |
Prices in USD per 1M tokens at each provider's standard first-party rate. A dash means the provider does not bill that item separately or no primary page states it.
What each costs in practice
The same three workloads every model page uses, worked from each model's standard list rates. Swap in your own token counts with the math on each model's page.
| Workload | GLM-5.3 | Grok Build 0.1 |
|---|---|---|
| One agent session1M input tokens and 100K output tokens, no caching. | $1.84 | $1.20 |
| A chat app10,000 requests a day at 2K input and 500 output tokens each. | $50.00$1,500.00 per 30-day month | $30.00$900.00 per 30-day month |
| The same session at a 90% cache hit90% of the input is read from the prompt cache. The one-time cache write premium is not included. | $0.814 | $0.48 |
Show the math
GLM-5.3
- One agent sessionInput: 1M x $1.40 = $1.40Output: 0.1M x $4.40 = $0.44
- A chat appInput: 20M x $1.40 = $28.00Output: 5M x $4.40 = $22.00
- The same session at a 90% cache hitCached input: 0.9M x $0.26 = $0.234Uncached input: 0.1M x $1.40 = $0.14Output: 0.1M x $4.40 = $0.44
Grok Build 0.1
- One agent sessionInput: 1M x $1 = $1.00Output: 0.1M x $2 = $0.20
- A chat appInput: 20M x $1 = $20.00Output: 5M x $2 = $10.00
- The same session at a 90% cache hitCached input: 0.9M x $0.20 = $0.18Uncached input: 0.1M x $1 = $0.10Output: 0.1M x $2 = $0.20
Benchmarks under the same setting
No board in the benchmark directory lists both GLM-5.3 and Grok Build 0.1 under the same setting, so there is no like-for-like score to show here.
Set them up in your tools
Step-by-step guides whose official docs list GLM-5.3 or Grok Build 0.1 by model id.
- Use GLM in AiderLists GLM-5.3
- Use GLM in Claude CodeLists GLM-5.3
- Use GLM in ClineLists GLM-5.3
- Use GLM in Codex CLILists GLM-5.3
- Use GLM in ContinueLists GLM-5.3
- Use GLM in CursorLists GLM-5.3
- Use GLM in GooseLists GLM-5.3
- Use GLM in Kilo CodeLists GLM-5.3
- Use GLM in OpenCodeLists GLM-5.3
- Use GLM in Roo CodeLists GLM-5.3
- Use GLM in ZedLists GLM-5.3
- Use Grok in ClineLists Grok Build 0.1
- Use Grok in Codex CLILists Grok Build 0.1
- Use Grok in ContinueLists Grok Build 0.1
- Use Grok in Kilo CodeLists Grok Build 0.1
- Use Grok in OpenCodeLists Grok Build 0.1
- Use Grok in Roo CodeLists Grok Build 0.1
- Use Grok in ZedLists Grok Build 0.1
Model pages
FAQ
How do GLM-5.3 and Grok Build 0.1 compare on price?
On list price, Grok Build 0.1 charges 29% less than GLM-5.3 for input ($1 vs $1.40 per 1M tokens), and GLM-5.3 charges 2.2x Grok Build 0.1's output price ($4.40 vs $2 per 1M tokens). For one agent session of 1M input and 100K output tokens with no caching, that is $1.84 on GLM-5.3 and $1.20 on Grok Build 0.1. Prices are each provider's first-party list rates, verified October 17, 2026 and October 17, 2026.
What are the context windows of GLM-5.3 and Grok Build 0.1?
GLM-5.3 has a 1,000,000-token context window and Grok Build 0.1 256,000 tokens; GLM-5.3 returns up to 128,000 output tokens per response, and no primary source states a max output for Grok Build 0.1.
Are GLM-5.3 and Grok Build 0.1 open weights?
GLM-5.3's weights are published at huggingface.co under the GLM-5.3 license (Hugging Face license tag: other). Grok Build 0.1 is closed-weights and is called through xAI's API as grok-build-0.1.
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- GLM-5.3 vs GPT-6.1 SolOpen weights vs closed
- Claude Sonnet 5.5 vs GLM-5.3Open weights vs closed
- Grok Build 0.1 vs Mistral Medium 3.5Similar price, same tier
- Claude Opus 5.5 vs GLM-5.3Open weights vs closed
Sources
GLM-5.3 verified from docs.z.ai; Grok Build 0.1 verified from docs.x.ai. This page is as current as the older of the two: .
- https://docs.z.ai/guides/overview/pricing
- https://docs.x.ai/developers/pricing
- https://docs.z.ai/guides/llm/glm-5.3
- https://docs.z.ai/release-notes/new-released
- https://docs.z.ai/openapi.json
- https://huggingface.co/zai-org/GLM-5.3
- https://ai-gateway.vercel.sh/v1/models
- https://docs.x.ai/developers/models/grok-build-0.1
- https://docs.x.ai/developers/release-notes
- https://x.ai/news
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