Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Specifications
- Provider
- SpaceXAI
- Type
- Vendor / proprietary
- Modality
- text+image+file->text
- Context window
- 500K
- Released
- July 8, 2026
Capabilities
Input: textInput: imageInput: fileOutput: textReasoning requiredConfigurable reasoning effort
Strengths
frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_p
