Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | — | 6B |
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 256k | 2k |
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | $1.00 | — |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | $2.00 | — |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | $0.20 | — |
| $300SpaceXSI list price | — | |
| These models have no shared benchmark scores. | ||
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 70.8% | — |
| Overview | ||
| Company | SpaceXSI | Z.ai |
| Release date | Aug 28 2025 | Mar 14 2023 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
Grok Code Fast 1vsClaude Haiku 5.5ChatGLM-6BvsClaude Haiku 5.5Grok Code Fast 1vsGPT-6.1 SolChatGLM-6BvsGPT-6.1 SolGrok Code Fast 1vsGemini 4 ArgonChatGLM-6BvsGemini 4 ArgonGrok Code Fast 1vsMuse Spark OpenChatGLM-6BvsMuse Spark OpenGrok Code Fast 1vsDeepSeek-V4.1-Flash-1017ChatGLM-6BvsDeepSeek-V4.1-Flash-1017Grok Code Fast 1vsMistral Large 4ChatGLM-6BvsMistral Large 4Frequently asked questions
Grok Code Fast 1 and ChatGLM-6B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Grok Code Fast 1 has a verified first-party API price: $1.00 per million input tokens and $2.00 per million output tokens. No pay-as-you-go API rate is tracked for ChatGLM-6B. ChatGLM-6B shipped 898 days before Grok Code Fast 1, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Grok Code Fast 1) vs 2k (ChatGLM-6B). Grok Code Fast 1 is closed, while ChatGLM-6B is open weight.
Direct benchmark comparisons are unavailable — Grok Code Fast 1 and ChatGLM-6B don't publish scores on any of the same benchmarks.