Grok 4
Grok 4 is an API-only (closed weights) language model from xAI, released July 9, 2025. Its makers disclosed about 3T parameters. On the Epoch Capabilities Index it scores 146.9, rank 85 of 256 rated models.
Grok 4 is the most intelligent model in the world. It includes native tool use and real-time search integration, and is available now to SuperGrok and Premium+ subscribers, as well as through the xAI API.
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Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Math | 48.3 | OTIS Mock AIME 2024-2025, FrontierMath-2025-02-28-Private, FrontierMath-Tier-4-2025-07-01-Private |
| Coding | 41.7 | Aider polyglot, Terminal Bench |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| GPQA Diamond | 86.1% |
| OTIS Mock AIME | 84.0% |
| Aider Polyglot | 79.6% |
| SimpleBench | 52.6% |
| Balrog | 43.6% |
| FrontierMath-2025-02-28-Private | 34.5% |
| Terminal-Bench | 27.2% |
| FrontierMath-Tier-4-2025-07-01-Private | 3.5% |
Links
Announcement · Epoch AI benchmarks
Models with a similar score
Inkling-Small · GLM-5.1 · DeepSeek-V4-Pro · GPT-5 · Grok 4.3 Beta · Qwen 3.6 Max (Preview) · GPT-5.4 Mini · Qwen 3.6 Plus
More from xAI
Grok 4.7 · Grok 4.6 · Grok 4.5 · Grok 4.3 Beta · Grok Build 0.1 · Grok 4.20 Multi-Agent · Grok 4.20 · Grok 4.1 Fast