AI Model Profile · xAI
Grok 4
Grok 4 is an AI model developed by xAI (United States), released July 9, 2025. It has approximately 3.0T parameters. It was trained on about 5.0×1026 FLOP of compute. It is a closed model available via API.
Frontier model · API access · Epoch confidence: Speculative · Source: Epoch AI · Updated 2026-08-17
Specifications
| Developer | xAI |
| Country | United States |
| Released | July 9, 2025 |
| Domain | Language,Multimodal,Vision |
| Parameters | 3.0T |
| Training compute | 5.0×1026 FLOP |
| Training cost (2023 USD) | $388m |
| Weights | Closed / API |
| Access | API access |
| Frontier model | Yes |
All figures from Epoch AI's Notable AI Models database (CC BY 4.0). Blank fields are undisclosed by the developer — never estimated by Affärslivet.
Benchmarks
Performance on Epoch AI's reproducible evaluations (higher is better; scores are the best across scorers). These are independent runs, not developer-reported numbers.
Source: Epoch AI Benchmarking Hub. GPQA Diamond = graduate-level science Q&A; SWE-Bench Verified = real software-engineering tasks; FrontierMath = research-level maths; MATH Level 5 = hardest competition maths; AIME = olympiad maths; SimpleQA = factual accuracy.
Frequently asked
- Who developed Grok 4?
- Grok 4 was developed by xAI (United States) and released on July 9, 2025.
- How big is Grok 4?
- Grok 4 has approximately 3.0T parameters and was trained on about 5.0×10^26 FLOP of compute, at an estimated training-compute cost of $388m. Source: Epoch AI.
- Is Grok 4 open source?
- Grok 4 is a closed model — its weights are not publicly released; it is available via API access.
- How does Grok 4 perform on benchmarks?
- On Epoch AI's evaluations, Grok 4 scores 47.9% on SimpleQA, 19.7% on FrontierMath, 87.0% on GPQA Diamond. Source: Epoch AI Benchmarking Hub.
Sources
Cite this model profile
Free to cite, quote and reference under CC BY 4.0 — with attribution to Affärslivet. Writing an article or answer? Reference this model profile as:
APA
Affärslivet Research. (2026). Grok 4 — specifications & benchmarks. Affärslivet. https://xn--affrslivet-s5a.com/en/ai/models/grok-4
MLA
"Grok 4 — specifications & benchmarks." Affärslivet, 2026-08-17, xn--affrslivet-s5a.com/en/ai/models/grok-4.
Source: Affärslivet — xn--affrslivet-s5a.com/en/ai/models/grok-4. Attribute to Affärslivet when citing or linking.