Jamba 1.5 Large
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AI modelsJamba 1.5 Large
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 · 2026-10-28 · rating
Jamba 1.5 Large
1,202.97 rating
Confidence interval: 1,181.18 – 1,224.76
675 votes
- Category
- chinese
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / codinghuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,227.24 rating
Confidence interval: 1,212.85 – 1,241.62
1440 votes
- Category
- coding
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / creative_writinghuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,211.43 rating
Confidence interval: 1,195.55 – 1,227.31
1379 votes
- Category
- creative_writing
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / englishhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,266.65 rating
Confidence interval: 1,257.47 – 1,275.82
4915 votes
- Category
- english
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / exclude_tieshuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,139.31 rating
Confidence interval: 1,128.10 – 1,150.53
5535 votes
- Category
- exclude_ties
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / experthuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,217.42 rating
Confidence interval: 1,188.53 – 1,246.32
331 votes
- Category
- expert
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / germanhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,199.81 rating
Confidence interval: 1,163.04 – 1,236.59
234 votes
- Category
- german
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / hard_promptshuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,217.53 rating
Confidence interval: 1,205.96 – 1,229.10
2372 votes
- Category
- hard_prompts
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,231.06 rating
Confidence interval: 1,217.18 – 1,244.94
1528 votes
- Category
- hard_prompts_english
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,196.22 rating
Confidence interval: 1,177.89 – 1,214.56
979 votes
- Category
- industry_business_and_management_and_financial_operations
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,218.14 rating
Confidence interval: 1,202.88 – 1,233.40
1433 votes
- Category
- industry_entertainment_and_sports_and_media
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,264.22 rating
Confidence interval: 1,237.17 – 1,291.27
448 votes
- Category
- industry_legal_and_government
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,249.31 rating
Confidence interval: 1,233.41 – 1,265.22
1358 votes
- Category
- industry_life_and_physical_and_social_science
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_mathematicalhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,227.49 rating
Confidence interval: 1,210.71 – 1,244.27
962 votes
- Category
- industry_mathematical
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,196.35 rating
Confidence interval: 1,168.71 – 1,223.99
474 votes
- Category
- industry_medicine_and_healthcare
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,236.38 rating
Confidence interval: 1,224.33 – 1,248.43
2339 votes
- Category
- industry_software_and_it_services
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,227.59 rating
Confidence interval: 1,214.99 – 1,240.19
2350 votes
- Category
- industry_writing_and_literature_and_language
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / instruction_followinghuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,212.46 rating
Confidence interval: 1,201.81 – 1,223.11
3266 votes
- Category
- instruction_following
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / japanesehuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,118.29 rating
Confidence interval: 1,081.69 – 1,154.89
242 votes
- Category
- japanese
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / longer_queryhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,206.06 rating
Confidence interval: 1,188.81 – 1,223.31
1024 votes
- Category
- longer_query
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / mathhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,221.01 rating
Confidence interval: 1,205.57 – 1,236.45
1147 votes
- Category
- math
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / multi_turnhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,219.86 rating
Confidence interval: 1,205.40 – 1,234.33
1634 votes
- Category
- multi_turn
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / non_englishhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,196.17 rating
Confidence interval: 1,185.92 – 1,206.42
3747 votes
- Category
- non_english
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / overallhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,237.00 rating
Confidence interval: 1,229.72 – 1,244.28
8662 votes
- Category
- overall
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Arena text preference / russianhuman preference · 2026-10-28 · rating
Jamba 1.5 Large
1,195.52 rating
Confidence interval: 1,177.70 – 1,213.34
998 votes
- Category
- russian
- Evaluated configuration
- Jamba 1.5 Large
- Evaluation type
- human preference
Run it locally
Capabilities
- Model license
- Jamba Open
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