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AI models

Not reported

Reka Flash 21B (20240226)

Model evaluation

Capability & preference

Human preference · Arena

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

Reka Flash 21B (20240226) 1165.0 Reka Flash 21B (20240226) · 95% interval 1159.1–1170.9 · 24,806 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

Reka Flash 21B (20240226)

1,135.27 rating

Confidence interval: 1,121.77 – 1,148.78

2774 votes

Oct 28, 2026

Category: chinese
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,153.37 rating

Confidence interval: 1,142.77 – 1,163.98

4748 votes

Oct 28, 2026

Category: coding
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,123.54 rating

Confidence interval: 1,111.42 – 1,135.67

3490 votes

Oct 28, 2026

Category: creative_writing
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,179.06 rating

Confidence interval: 1,171.72 – 1,186.40

14444 votes

Oct 28, 2026

Category: english
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,031.91 rating

Confidence interval: 1,022.72 – 1,041.10

16076 votes

Oct 28, 2026

Category: exclude_ties
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,106.98 rating

Confidence interval: 1,089.87 – 1,124.10

1325 votes

Oct 28, 2026

Category: expert
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,174.70 rating

Confidence interval: 1,143.27 – 1,206.13

430 votes

Oct 28, 2026

Category: french
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,152.66 rating

Confidence interval: 1,130.87 – 1,174.45

798 votes

Oct 28, 2026

Category: german
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,136.40 rating

Confidence interval: 1,127.60 – 1,145.21

7446 votes

Oct 28, 2026

Category: hard_prompts
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,144.14 rating

Confidence interval: 1,133.69 – 1,154.59

4796 votes

Oct 28, 2026

Category: hard_prompts_english
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,126.87 rating

Confidence interval: 1,113.74 – 1,140.01

2702 votes

Oct 28, 2026

Category: industry_business_and_management_and_financial_operations
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,100.50 rating

Confidence interval: 1,088.78 – 1,112.22

3476 votes

Oct 28, 2026

Category: industry_entertainment_and_sports_and_media
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,180.58 rating

Confidence interval: 1,162.81 – 1,198.34

1350 votes

Oct 28, 2026

Category: industry_legal_and_government
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,159.62 rating

Confidence interval: 1,148.23 – 1,171.02

4108 votes

Oct 28, 2026

Category: industry_life_and_physical_and_social_science
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,158.64 rating

Confidence interval: 1,146.61 – 1,170.68

2967 votes

Oct 28, 2026

Category: industry_mathematical
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,147.15 rating

Confidence interval: 1,129.23 – 1,165.06

1299 votes

Oct 28, 2026

Category: industry_medicine_and_healthcare
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,155.33 rating

Confidence interval: 1,146.29 – 1,164.36

7444 votes

Oct 28, 2026

Category: industry_software_and_it_services
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,152.16 rating

Confidence interval: 1,142.28 – 1,162.03

5831 votes

Oct 28, 2026

Category: industry_writing_and_literature_and_language
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,121.28 rating

Confidence interval: 1,112.90 – 1,129.67

9018 votes

Oct 28, 2026

Category: instruction_following
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,049.01 rating

Confidence interval: 1,019.74 – 1,078.28

440 votes

Oct 28, 2026

Category: japanese
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,068.31 rating

Confidence interval: 1,041.41 – 1,095.21

629 votes

Oct 28, 2026

Category: korean
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,140.50 rating

Confidence interval: 1,127.73 – 1,153.26

2719 votes

Oct 28, 2026

Category: longer_query
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,155.53 rating

Confidence interval: 1,144.19 – 1,166.87

3363 votes

Oct 28, 2026

Category: math
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,141.51 rating

Confidence interval: 1,129.50 – 1,153.52

3366 votes

Oct 28, 2026

Category: multi_turn
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,145.67 rating

Confidence interval: 1,137.58 – 1,153.75

10362 votes

Oct 28, 2026

Category: non_english
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,164.96 rating

Confidence interval: 1,159.07 – 1,170.85

24806 votes

Oct 28, 2026

Category: overall
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,159.70 rating

Confidence interval: 1,146.60 – 1,172.80

2328 votes

Oct 28, 2026

Category: russian
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

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

Reka Flash 21B (20240226)

1,131.96 rating

Confidence interval: 1,100.01 – 1,163.90

409 votes

Oct 28, 2026

Category: spanish
Evaluated configuration: Reka Flash 21B (20240226)
Evaluation type: human preference

Run it locally

Inference · memory estimate

Reka Flash 21B (20240226)

Not enough verified architecture information for a reliable VRAM estimate.

Capabilities

Model license: Proprietary