Reka Flash 21B (Online, 20240226)
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AI modelsReka Flash 21B (Online, 20240226)
Model evaluation
Capability & preference
Human preference · Arena
Overall text preferences from head-to-head votes. Not factual accuracy or a task-success rate.
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 · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,143.37 rating
Confidence interval: 1,128.16 – 1,158.58
2015 votes
- Category
- chinese
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / codinghuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,164.35 rating
Confidence interval: 1,151.65 – 1,177.05
2879 votes
- Category
- coding
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / creative_writinghuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,130.42 rating
Confidence interval: 1,116.10 – 1,144.74
2119 votes
- Category
- creative_writing
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / englishhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,180.75 rating
Confidence interval: 1,171.76 – 1,189.75
8935 votes
- Category
- english
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / exclude_tieshuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,040.22 rating
Confidence interval: 1,029.31 – 1,051.12
10138 votes
- Category
- exclude_ties
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / experthuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,115.92 rating
Confidence interval: 1,094.67 – 1,137.17
830 votes
- Category
- expert
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / frenchhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,162.37 rating
Confidence interval: 1,121.46 – 1,203.29
230 votes
- Category
- french
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / germanhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,150.74 rating
Confidence interval: 1,123.91 – 1,177.58
501 votes
- Category
- german
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / hard_promptshuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,136.73 rating
Confidence interval: 1,126.02 – 1,147.44
4506 votes
- Category
- hard_prompts
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,146.71 rating
Confidence interval: 1,134.17 – 1,159.26
2928 votes
- Category
- hard_prompts_english
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,135.26 rating
Confidence interval: 1,119.67 – 1,150.85
1678 votes
- Category
- industry_business_and_management_and_financial_operations
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,133.86 rating
Confidence interval: 1,119.78 – 1,147.94
2125 votes
- Category
- industry_entertainment_and_sports_and_media
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,194.31 rating
Confidence interval: 1,173.58 – 1,215.05
876 votes
- Category
- industry_legal_and_government
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,168.24 rating
Confidence interval: 1,154.73 – 1,181.75
2572 votes
- Category
- industry_life_and_physical_and_social_science
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_mathematicalhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,165.88 rating
Confidence interval: 1,151.32 – 1,180.45
1867 votes
- Category
- industry_mathematical
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,142.79 rating
Confidence interval: 1,121.39 – 1,164.18
818 votes
- Category
- industry_medicine_and_healthcare
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,164.71 rating
Confidence interval: 1,153.79 – 1,175.62
4673 votes
- Category
- industry_software_and_it_services
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,160.26 rating
Confidence interval: 1,148.24 – 1,172.27
3632 votes
- Category
- industry_writing_and_literature_and_language
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / instruction_followinghuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,129.28 rating
Confidence interval: 1,119.12 – 1,139.45
5558 votes
- Category
- instruction_following
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / japanesehuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,075.29 rating
Confidence interval: 1,040.01 – 1,110.58
274 votes
- Category
- japanese
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / koreanhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,104.11 rating
Confidence interval: 1,068.92 – 1,139.31
309 votes
- Category
- korean
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / longer_queryhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,139.07 rating
Confidence interval: 1,123.47 – 1,154.67
1650 votes
- Category
- longer_query
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / mathhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,167.99 rating
Confidence interval: 1,154.28 – 1,181.69
2028 votes
- Category
- math
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / multi_turnhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,150.89 rating
Confidence interval: 1,136.11 – 1,165.68
2021 votes
- Category
- multi_turn
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / non_englishhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,154.96 rating
Confidence interval: 1,145.25 – 1,164.68
6515 votes
- Category
- non_english
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / overallhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,170.44 rating
Confidence interval: 1,163.14 – 1,177.74
15450 votes
- Category
- overall
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / russianhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,163.20 rating
Confidence interval: 1,147.20 – 1,179.20
1337 votes
- Category
- russian
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
Arena text preference / spanishhuman preference · 2026-11-09 · rating
Reka Flash 21B (Online, 20240226)
1,148.82 rating
Confidence interval: 1,107.35 – 1,190.29
217 votes
- Category
- spanish
- Evaluated configuration
- Reka Flash 21B (Online, 20240226)
- Evaluation type
- human preference
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Capabilities
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