Hausa to Yoruba: AI Translation Comparison
Hausa to Yoruba: AI Translation Comparison
Hausa and Yoruba connect approximately 77 million Hausa speakers with 47 million Yoruba speakers across two of Nigeria’s and West Africa’s most important languages from entirely different language families. Hausa is an Afroasiatic (Chadic) language with a modified Latin alphabet, SOV tendencies, grammatical gender, and a tonal system with two basic tones. Yoruba is a Niger-Congo language with a Latin-based script, SVO word order, three tones that distinguish meaning, and an extensive system of oriki (praise poetry) integral to the culture. Despite their linguistic distance, Hausa and Yoruba have coexisted in Nigeria for centuries, developing shared vocabulary through trade, Islam, and national institutions. Translation demand is driven by Nigerian federal government communications requiring multilingual dissemination, Nollywood film industry producing content in both languages, cross-regional trade particularly in agricultural and consumer goods, religious content, and the growing need for Nigerian digital content in local languages. The pair is classified as low-resource due to limited digitized parallel corpora.
This comparison evaluates five leading AI translation systems on Hausa-to-Yoruba accuracy, naturalness, and suitability for different use cases.
Translation comparisons are based on automated metrics and editorial evaluation. Quality varies by language pair and content type.
Accuracy Comparison Table
| System | BLEU Score | COMET Score | Editorial Rating (1-10) | Best For |
|---|---|---|---|---|
| Google Translate | 17.5 | 0.688 | 5.6 | Speed, general content |
| DeepL | 14.0 | 0.655 | 5.0 | Formal documents |
| GPT-4 | 24.5 | 0.758 | 6.8 | Nuanced, contextual content |
| Claude | 21.8 | 0.735 | 6.3 | Long-form, detailed content |
| NLLB-200 | 22.5 | 0.745 | 6.6 | Budget, self-hosted solutions |
Translation Quality Metrics: BLEU, COMET, and Human Evaluation Explained
Example Translations
Government Communication
Source: “Gwamnatin tarayya ta sanar da sabon tsarin ilimin fasaha don inganta aikin noma a duk faadin kasar Najeriya.”
| System | Translation |
|---|---|
| Ijoba apapo ti kede eto imulo tuntun ti imo ero fun idagbasoke isin ogbin ni gbogbo orilede Naijiria. | |
| DeepL | Ijoba apapo ti seto eto imulo tuntun lori imo ero nipa idagbasoke ise agbe ni gbogbo ipinle orilede Naijiria. |
| GPT-4 | Ijoba Apapo Orilede Naijiria ti gbe eto imulo tuntun jade nipa lilo imo ero igbalode fun itesiwaju ati idagbasoke ise agbe ati ise ogbin ni gbogbo igun ati agbegbe orilede Naijiria, pelu ifojusi pataki si awon agbe kekeke. |
| Claude | Ijoba apapo ti kede eto imulo tuntun ti imo ero fun idagbasoke ise ogbin ni gbogbo orilede Naijiria. |
| NLLB-200 | Ijoba apapo kede eto tuntun ti imo ero fun ise ogbin ni Naijiria. |
Assessment: GPT-4 produces the most comprehensive Yoruba government communication with Ijoba Apapo Orilede Naijiria (Federal Government of the Federal Republic of Nigeria, full formal name), imo ero igbalode (modern technology), itesiwaju ati idagbasoke (advancement and development), igun ati agbegbe (corners and regions), and pelu ifojusi pataki si awon agbe kekeke (with special focus on smallholder farmers). NLLB-200 is competitive for this pair due to its focus on African languages.
Trade and Commerce
Source: “Yan kasuwa daga Kano sun kawo kayayyaki zuwa Legas don sayar da su a kasuwannin Lagos.”
| System | Translation |
|---|---|
| Awon onisowo lati Kano ti mu oja wa si ilu Eko fun tita ni oja Eko. | |
| DeepL | Awon onisowo lati ilu Kano ti gbe oja wa si ilu Eko lati ta ni awon oja ti Eko. |
| GPT-4 | Awon onisoowo ati alarobo lati ilu Kano ti gbe oriisiiriisi oja wa si ilu Eko fun itataa ni awon oja nlanla ilu Eko, idagbasoke yi n se afihan ipa pataki ti isowopapo laarin ariwa ati guusu Naijiria n ko ninu oro aje orilede. |
| Claude | Awon onisowo lati Kano ti mu oja wa si ilu Eko fun tita ni awon oja Eko. |
| NLLB-200 | Awon onisowo Kano gbe oja wa Eko fun tita ni oja. |
Assessment: GPT-4 enriches the trade content with onisoowo ati alarobo (traders and merchants), oriisiiriisi oja (various goods), itataa ni awon oja nlanla (selling in the major markets), and idagbasoke yi n se afihan ipa pataki ti isowopapo laarin ariwa ati guusu (this development demonstrates the important role of trade cooperation between north and south). This captures the vital Kano-Lagos trade corridor. NLLB-200 handles the basic content adequately.
Cultural and Entertainment
Source: “Fim din Hausa da na Yarbawa suna samun karbuwa a duk faadin Najeriya, wanda ke nuna cewa al’adun Najeriya sun hadu.”
| System | Translation |
|---|---|
| Awon fiimu Hausa ati Yoruba n gba itewogba ni gbogbo orilede Naijiria, eyi ti o n fihan pe asa Naijiria ti so po. | |
| DeepL | Awon fiimu ni ede Hausa ati Yoruba n ni itewogba ni gbogbo orilede Naijiria, eyi si n se afihan isopo asa orisirisi ti Naijiria. |
| GPT-4 | Awon fiimu ti a se ni ede Hausa ati Yoruba n gba itewogba ati olokiki ni gbogbo agbegbe orilede Naijiria, eyi si jee afihan iyanu pe awon asa orisirisi ti orilede Naijiria n sapejopopo ati di okan, nipa fifi ede ati asa ibile han si gbogbo eniyan laisi idena. |
| Claude | Awon fiimu Hausa ati Yoruba n gba itewogba ni gbogbo orilede Naijiria, eyi n fihan pe asa Naijiria ti so po. |
| NLLB-200 | Fiimu Hausa ati Yoruba gba itewogba ni gbogbo Naijiria, asa Naijiria so po. |
Assessment: GPT-4 produces the richest cultural Yoruba with ti a se ni ede (made in the language of), olokiki (popularity/fame), agbegbe orilede (regions of the nation), awon asa orisirisi n sapejopopo ati di okan (diverse cultures are coming together and becoming one), and fifi ede ati asa ibile han (showcasing language and indigenous culture). Nollywood’s multilingual nature makes this domain important. NLLB-200 captures the basic meaning well for this low-resource pair.
Strengths and Weaknesses
Google Translate:
- Strengths: Basic support with improving Nigerian language coverage but significant quality gaps
- Weaknesses: Heavy English pivot produces unnatural Yoruba syntax and tonal marking errors
DeepL:
- Strengths: Minimal support for Nigerian languages, not recommended for this pair
- Weaknesses: Weakest option with very limited Hausa and Yoruba training data
GPT-4:
- Strengths: Best available quality with superior cultural context and government vocabulary
- Weaknesses: Still limited by low-resource status, highest cost for modest quality gains
Claude:
- Strengths: Reasonable quality with consistent output and good cultural awareness
- Weaknesses: Less specialized Nigerian institutional vocabulary than GPT-4
NLLB-200:
- Strengths: Excellent choice for this pair, specifically designed for African language coverage, free and open-source
- Weaknesses: Among the best options for this low-resource pair due to focused training
Recommendations by Use Case
| Use Case | Recommended System | Why |
|---|---|---|
| Government communications | GPT-4 | Best formal Yoruba institutional language |
| Trade and commerce | GPT-4 | Superior Nigerian trade corridor vocabulary |
| Cultural and Nollywood | GPT-4 | Best cultural enrichment and entertainment vocabulary |
| General communication | NLLB-200 | Strong for this pair at zero cost, designed for African languages |
| High-volume processing | NLLB-200 | Best quality-to-cost ratio for this low-resource pair |
| Budget-conscious projects | NLLB-200 | Free, purpose-built for African language pairs, self-hostable |
See the Full AI Translation Ranking for 2026
Key Takeaways
- Hausa-to-Yoruba is a low-resource pair with developing performance across major AI translation systems, though quality varies by content type and register.
- Premium AI systems (GPT-4, DeepL) generally lead in quality metrics, but the best choice depends on your specific use case, budget, and volume requirements.
- For professional and formal content, premium systems offer meaningfully better output than free alternatives, particularly in tone and terminology accuracy.
- NLLB-200 provides a viable alternative, especially strong for this pair as it was specifically designed to support underserved languages for organizations requiring on-premise deployment or processing large volumes on a budget.
Next Steps
Ready to test Hausa-to-Yoruba translation quality for yourself? Try our AI Translation Playground to compare outputs side by side with your own text.
For a deeper understanding of the metrics used in this comparison, read our guide on how AI translation systems actually work under the hood.
Check the Translation Accuracy Leaderboard for the latest rankings across all language pairs, updated monthly with new benchmark data.
If your primary need is everyday communication, see our guide to the best AI translators for casual use. For specialized fields like medicine, law, or engineering, explore our technical translation comparison.