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Grok 4 Fast (Non-Reasoning)

Model evaluation

Capability & preference

Human preference · Arena

Overall text preferences from head-to-head votes. Not factual accuracy or a task-success rate.

Grok 4 Fast (Non-Reasoning) 1406.8 Grok 4 Fast (Non-Reasoning) · 95% interval 1399.0–1414.5 · 6,336 votes · 2026-10-28

Recorded results

Only the same benchmark, version, workload, scenario and unit share a row. Missing results are not zero. System results include the full submitted hardware and software configuration.

Arena text preference / chinesehuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,456.96 rating

Confidence interval: 1,428.59 – 1,485.33

463 votes

Oct 28, 2026

Category: chinese
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / codinghuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,427.93 rating

Confidence interval: 1,411.24 – 1,444.62

1182 votes

Oct 28, 2026

Category: coding
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / creative_writinghuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,386.26 rating

Confidence interval: 1,366.30 – 1,406.22

889 votes

Oct 28, 2026

Category: creative_writing
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / englishhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,413.72 rating

Confidence interval: 1,402.36 – 1,425.07

2641 votes

Oct 28, 2026

Category: english
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / exclude_tieshuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,390.12 rating

Confidence interval: 1,379.45 – 1,400.78

4549 votes

Oct 28, 2026

Category: exclude_ties
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / experthuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,398.40 rating

Confidence interval: 1,364.25 – 1,432.54

288 votes

Oct 28, 2026

Category: expert
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / hard_promptshuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,411.86 rating

Confidence interval: 1,401.19 – 1,422.54

3011 votes

Oct 28, 2026

Category: hard_prompts
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / hard_prompts_englishhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,417.86 rating

Confidence interval: 1,401.39 – 1,434.33

1267 votes

Oct 28, 2026

Category: hard_prompts_english
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,381.01 rating

Confidence interval: 1,363.73 – 1,398.29

1128 votes

Oct 28, 2026

Category: industry_business_and_management_and_financial_operations
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,381.38 rating

Confidence interval: 1,364.57 – 1,398.19

1203 votes

Oct 28, 2026

Category: industry_entertainment_and_sports_and_media
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_legal_and_governmenthuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,407.88 rating

Confidence interval: 1,379.12 – 1,436.65

402 votes

Oct 28, 2026

Category: industry_legal_and_government
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,408.11 rating

Confidence interval: 1,388.97 – 1,427.25

953 votes

Oct 28, 2026

Category: industry_life_and_physical_and_social_science
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_mathematicalhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,435.65 rating

Confidence interval: 1,403.41 – 1,467.90

307 votes

Oct 28, 2026

Category: industry_mathematical
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,415.42 rating

Confidence interval: 1,384.51 – 1,446.33

374 votes

Oct 28, 2026

Category: industry_medicine_and_healthcare
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_software_and_it_serviceshuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,430.26 rating

Confidence interval: 1,417.45 – 1,443.07

2065 votes

Oct 28, 2026

Category: industry_software_and_it_services
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,391.04 rating

Confidence interval: 1,375.60 – 1,406.48

1463 votes

Oct 28, 2026

Category: industry_writing_and_literature_and_language
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / instruction_followinghuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,386.93 rating

Confidence interval: 1,372.39 – 1,401.48

1679 votes

Oct 28, 2026

Category: instruction_following
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / koreanhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,331.59 rating

Confidence interval: 1,289.04 – 1,374.13

188 votes

Oct 28, 2026

Category: korean
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / longer_queryhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,414.20 rating

Confidence interval: 1,398.56 – 1,429.84

1414 votes

Oct 28, 2026

Category: longer_query
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / mathhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,418.50 rating

Confidence interval: 1,389.04 – 1,447.97

380 votes

Oct 28, 2026

Category: math
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / multi_turnhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,413.84 rating

Confidence interval: 1,396.09 – 1,431.59

1082 votes

Oct 28, 2026

Category: multi_turn
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / non_englishhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,395.37 rating

Confidence interval: 1,385.70 – 1,405.04

3695 votes

Oct 28, 2026

Category: non_english
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / overallhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,406.76 rating

Confidence interval: 1,399.01 – 1,414.52

6336 votes

Oct 28, 2026

Category: overall
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / polishhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,428.19 rating

Confidence interval: 1,397.24 – 1,459.15

378 votes

Oct 28, 2026

Category: polish
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / russianhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,382.69 rating

Confidence interval: 1,357.33 – 1,408.06

466 votes

Oct 28, 2026

Category: russian
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Arena text preference / spanishhuman preference · 2026-10-28 · rating

Grok 4 Fast (Non-Reasoning)

1,414.72 rating

Confidence interval: 1,376.61 – 1,452.83

255 votes

Oct 28, 2026

Category: spanish
Evaluated configuration: Grok 4 Fast (Non-Reasoning)
Evaluation type: human preference

Run it locally

Inference · memory estimate

Grok 4 Fast (Non-Reasoning)

Not enough verified architecture information for a reliable VRAM estimate.

Capabilities

Model license: Proprietary