Model record
Grok 4.5 model overview
Grok 4.5 is a api model from SpaceXAI. It was released on July 8, 2026. Its strongest case is 500k context window, while buyers should account for closed weights.
Grok 4.5 benchmark snapshot
| Evaluation | Reported score | What it probes |
|---|---|---|
| MMLU-Pro | Not reported | Broad knowledge and multi-step reasoning |
| GPQA Diamond | Not reported | Graduate-level science reasoning |
| SWE-bench Verified | Not reported | Verified real-repository issue resolution |
| LiveCodeBench | Not reported | Contamination-aware competitive programming |
| SWE-Bench Pro | Not reported | Longer, harder professional software tasks |
| Artificial Analysis Intelligence Index | Not reported | Composite third-party capability index; version matters |
Scores are percentages reported by model creators or benchmark maintainers under varying settings. A blank is preferable to an inferred result. See our methodology.
Grok 4.5 strengths
- 500K context window
- Configurable reasoning effort
- Competitive listed API pricing
Grok 4.5 limitations
- Closed weights
- Higher pricing applies beyond 200K context
Editorial take: Benchmark rank should narrow a shortlist, not close a purchase. Run a private evaluation with representative prompts, failure cases, latency targets, and total token costs.
Source record
Specifications and scores are linked to the best source located during review. Provider-reported results are not presented as third-party lab reproductions.
Read SpaceXAI Grok 4.5 model documentation ↗