# Grok 4.1 Fast Benchmark Scores & Performance

> Grok 4.1 Fast by xAI scores 36.45/100 overall, ranking #154 out of 954 AI models.

Canonical page: https://benchlm.ai/models/grok-4-1-fast

Last updated: October 17, 2026

## Model Details

| Property | Value |
|----------|-------|
| Creator | xAI |
| Source Type | Proprietary |
| Reasoning Type | Non-Reasoning |
| Context Window | 1M |
| Overall Score | 36.45/100 |
| Overall Rank | #154 of 954 |

## Family & Coverage

- Family: Grok 4.1 Fast
- Variant: base
- Benchmarks covered: 12 of 639
- Sibling models: [Grok 4.1 Fast (Reasoning)](/models/grok-4-1-fast-reasoning)
- Coverage note: BenchLM currently has partial benchmark coverage for this model, so the overall score is conservative.

## Agentic Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [τ²-bench results](/benchmarks/tau2-bench) | 63.7% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [Gert Labs](/benchmarks/gertlabs) | 47.32% | [Gert Labs rankings](https://gertlabs.com/rankings) |

## Multimodal & Grounded Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [AA-MMMU-Pro](/benchmarks/mmmu-pro) | 48.4% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |

## Reasoning Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [AA-LCR](/benchmarks/lcr) | 31.3% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [CritPt](/benchmarks/critpt) | 0.0% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |

## Knowledge Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [Artificial Analysis Intelligence Index](/benchmarks/artificialanalysis) | 11.3% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [AA-GPQA Diamond](/benchmarks/gpqa-diamond) | 63.7% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [AA-HLE](/benchmarks/aahle) | 5.1% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [AA-Omniscience Index](/benchmarks/aaomniscienceindex) | -50.9% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [AA-Omniscience Accuracy](/benchmarks/omniscienceaccuracy) | 17.2% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |
| [AA-Omniscience Hallucination Rate](/benchmarks/omnisciencehallucinationrate) | 82.3% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |

## Instruction Following Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [AA-IFBench](/benchmarks/ifbench) | 36.5% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/grok-4-1-fast) |

## Other xAI Models

- [Grok 4.6](/models/grok-4-6) - Score: 67.02
- [Grok 4.5](/models/grok-4-5) - Score: 63.28
- [Grok 4.20](/models/grok-4-20-beta) - Score: 57.43
- [Grok 4.3](/models/grok-4-3) - Score: 53.07
- [Grok 4](/models/grok-4) - Score: 51.77
- [Grok 4.1 Fast (Reasoning)](/models/grok-4-1-fast-reasoning) - Score: 45.83
- [Grok 3 Mini](/models/grok-3-mini) - Score: 44.19
- [Grok 4 Fast (Reasoning)](/models/grok-4-fast-reasoning) - Score: 43.48
- [Grok 3 [Beta]](/models/grok-3-beta) - Score: 40.98
- [Grok Code Fast 1](/models/grok-code-fast-1) - Score: 34.09
- [Grok 4.7](/models/grok-4-7) - Score: not computed
- [Grok 2](/models/grok-2) - Score: not computed
- [Grok 2 mini](/models/grok-2-mini) - Score: not computed
- [Grok 4.1](/models/grok-4-1) - Score: not computed
- [Grok Voice 3.0](/models/grok-voice-3-0) - Score: not computed
- [Grok Voice Transcribe 2.0](/models/grok-voice-transcribe-2) - Score: not computed
- [Grok Voice Think Fast 2.0](/models/grok-voice-think-fast-2-0) - Score: not computed
- [Grok Build 0.1](/models/grok-build-0-1) - Score: not computed
- [Grok Voice Think Fast 1.0](/models/grok-voice-think-fast-1-0) - Score: not computed
- [Grok TTS](/models/grok-tts) - Score: not computed
- [Grok 4.20 Multi-agent](/models/grok-4-20-multi-agent-beta) - Score: not computed
- [Grok Realtime](/models/grok-realtime) - Score: not computed