multimodal LLM
Grok 4
xAI reasoning model whose RL stage xAI states ran at pretraining scale on its 200,000 GPU Colossus cluster.
Levelmodel
Classmultimodal LLM
Parametersnot in the notes
Contextnot in the notes
Released9 Jul 2025
Opennessproprietary
Runs onnot in the notes
Statusactive
Lineage
successor
Grok 4.20 is a child (successor)medium confidencenotesWhere this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 3 models. Confidence and evidence are the notes' own.
Identity
- Developer
- SpaceXAI (xAI)
- Family
- Grok
- Released
- 9 Jul 2025 sourcesannouncement page
- Weights published
- –
- Record checked
- 10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- not in the notes Not disclosed
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Context length
- not in the notes
- Input
- text
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- proprietary
- Licence
- Proprietary sources
- Access routes
- API
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- not in the notes
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Benchmark Results
The notes record no benchmark result for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperSpaceXAI (xAI)frontier lab, USA
SpaceXAI (xAI)frontier lab, USAModelGrok 4SpaceXAI (xAI), multimodal LLM
Grok 4SpaceXAI (xAI), multimodal LLMUse CasesIndustrial Copilots and Maintenance AssistantsIndustrialClinical LLM (Frontier Proprietary)HealthcarePharma Documents, Regulatory and Life-Science R&DHealthcareAmbient Clinical ScribingHealthcare+3 moreUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs It
PT Pertamina Geothermal EnergyIn production, 14 Jul 2026
Banner HealthIn production, 11 Jan 2026CommureIn production, 11 Jan 2026FlatironIn production, 11 Jan 2026+39 moreDeployments of these use cases; none names this model.
PT Pertamina Geothermal EnergyIn production, 14 Jul 2026Banner HealthIn production, 11 Jan 2026CommureIn production, 11 Jan 2026FlatironIn production, 11 Jan 2026+39 moreDeployments of these use cases; none names this model.Organisations 1
Sources
- Grok Models & Pricing | SpaceXSI Docs docs.x.ai https://docs.x.ai/docs/models
- AI Model Releases: October 2026 Tracker and Dated Ledger digitalapplied.com https://www.digitalapplied.com/blog/ai-model-releases-october-2026-tracker
- Supported AI models in GitHub Copilot - GitHub Docs docs.github.com https://docs.github.com/en/copilot/reference/ai-models/supported-models
- Grok 4 x.ai https://x.ai/news/grok-4
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Grok 4", https://aurion.semai.id/models/spacexai-grok-4/, records of October 2026.