Sahara CodeSwitch Africa Challenge

The Sahara CodeSwitch Africa Challenge

Prize pool

$10,000 USD

Build voice models that understand code-switching, local accents, and real-world noise.

NVIDIA, CLEAR Global, Masakhane, Wema Bank, Branch, ARM, Gooey.AI, Co-creation Hub, PATH and turn.io

The Sahara CodeSwitch
Africa Challenge

invites developers, startups, researchers, product teams, and builders across Africa to help solve one of the biggest unsolved problems in voice AI. Use Sahara’s new code-switching APIs. Build real applications. Benchmark what works. Help surface how well current speech models handle code-switched audio in real-world settings.

Prize pool
$10,000 USD
Registration opens
5 August 2026
Registration closes
15 September 2026
Winners announced
1 October 2026

The Challenge Task

Create or improve a real-world voice AI application

The transcript received can be used to perform a downstream task. Examples include a voice assistant that completes a booking, a voice-driven triage tool, a spoken-language form-filler, or a voice interface that takes an action on a user’s behalf.

Each submission must:

  1. Use voice to achieve a downstream task (the agentic component), not simply convert speech to text.
  2. Benchmark performance on code-switched audio input across at least three speech models, including an Intron Sahara API, and at least two other models of the team’s choice (global, local, open-source, commercial, pretrained or fine-tuned).
  3. Target a specific vertical or use case (see categories below).
  4. Where possible and permitted, submit code-switched audio samples used for testing, with basic metadata (language pair, domain, accent/country, device type, noise conditions).

Competition Categories

Five tracks designed for real-world impact across Africa.

Health

Clinical documentation, patient intake, community health, maternal health, public health, hospital workflows, and frontline care.

Legal & Public Services

Court transcription, legal aid, citizen services, civic reporting, complaints, justice access, and public-sector workflows.

Fintech, Telco & Customer Experience

Voice banking, KYC, payments, collections, customer support, call centers, agent assist, and customer insights.

Agriculture & Education

Farmer advisory, extension services, tutoring, classroom learning, local-language education, and skills training.

Other High-Impact Use Cases

Humanitarian response, accessibility, media, religious services, commerce, transport, culture, and any meaningful use of code-switching voice AI.

Health

Clinical documentation, patient intake, maternal health, public health and frontline care.

Patient health

Legal & Public Services

Court transcription, legal aid, citizen services, complaints and justice-access workflows.

Case file

Fintech, Telco & Customer Experience

Voice banking, KYC, payments, collections, call centres and customer support.

Payment confirmed

Agriculture & Education

Farmer advisory, tutoring, classroom learning, local-language education and skills training.

Growth and learning

Other High-Impact Use Cases

Accessibility, media, commerce, transport, culture and meaningful code-switching applications.

Connected services

Competition Resources

In August, Intron is releasing Sahara v2.5 in beta (research preview), focused on bilingual code-switching across 12 African language pairs.

Build with Sahara v2.5

Start with the research-preview tools and support needed to create bilingual African speech experiences.

Access

Sahara v2.5 APIs

Code-switching API access for participant prototypes and integrated applications.

Coverage

12 language pairs

Built around bilingual code-switching across African languages.

Support

Developer onboarding

Guidance that helps teams get set up and begin building confidently.

Who should enter

Applications are open to builders across Africa and the diaspora. Apply as a solo builder or as a team. We especially encourage:

Developers & engineers
AI/ML researchers
Startups & product teams
Student teams
Open-source builders
NGOs & civic-tech teams
Companies with voice or customer-facing workflows

Bonus points will be given to solutions addressing a real problem for a meaningful population size.
Submissions can include fresh ideas, production apps, apps close to deployment, etc clearly designed for real world use.

Team Formation

You can apply as an individual or as a team.

Teams may include developers, researchers, designers, domain experts, product managers, linguists, clinicians, customer-support operators, field workers, or anyone who understands the problem you are solving.

Recommended team size: 2–5 people.

What to Submit

Keep it concise. Focus on impact, execution, and responsible use.

  1. 1

    Problem & Solution

    A short description of the problem and your proposed solution.

  2. 2

    Working Prototype

    A short video demo of a working prototype or integrated application.

  3. 3

    Code & Docs

    Code or technical documentation for your implementation.

  4. 4

    Benchmark Results

    Comparing Sahara against at least three other speech models.

  5. 5

    Responsible AI

    A note on privacy, consent, safety, and responsible data use.

Deployment

v1.2.0 – Stable

Health
Edge Runtime 99.9%
SSL Certification active 12:45:01
Database migration 100% 12:45:03
CDN Edge propagation... Running
Live in production 0.4ms

How You Are Judged

Five dimensions evaluated by partners, sponsors, and technical experts.

01

Real-world Impact

Does it address a meaningful user need for a large target population?

02

Code-switching

Performance across multilingual environments and natural code-switching scenarios.

03

Product Quality

Usability, workflow fit and user trust in the final experience.

04

Technical Execution

Reliability, integration, latency and robustness in real environments.

05

Ethics & Safety

Consent, inclusion, privacy, bias and respect for user dignity.

Drag or swipe
01/05

Prizes

A total cash prize pool plus non-cash opportunities for finalists.

$10,000 Total Cash Prize Pool

Cash prizes will be awarded to top-performing solutions across the challenge categories.

Workshop Challenge Prize

$1,200 Winner
$800 Runner-up
Top teams will also receive
Partner Demo Day Access for top teams
Greater Visibility With sponsors, judges, funders and ecosystem partners
Pilot Opportunities Potential pilot or deployment conversations
Sahara API Credits Additional resources to continue building
Recognition Across Intron and partner channels

Timeline

Key milestones from launch to winner announcements.

Phase 1 · Indaba sprint 3–7 August Launch to winners in five days
Phase 2 · Main competition 14 August–1 October Onboarding, building, benchmarking and Demo Day

Phase 1 · The MLC (Africa) × Intron Agentic Voice AI Challenge

5-day sprint
Launch + registration Challenge announced during Deep Learning Indaba and registration opens.
Submission deadline Final entries for the workshop challenge are due.
Finalists + winners Finalists and winner(s) are announced at the workshop.

Phase 2 · Main competition

Full build
EOI closes Registration and Expression of Interest deadline.
15 August–15 September Build period Team formation, onboarding, API access, building and benchmarking.
Final submission Completed solutions and supporting materials are due.
Late September 2026 Selection + Demo Day Screening, finalist selection and Partner Demo Day.
Winners announced The Sahara CodeSwitch Africa Challenge concludes.

PARTNER DEMO DAY

Finalists will pitch live to challenge partners, judges, sponsors, funders, and ecosystem leaders.

This is where top teams can showcase their applications, share benchmark results, meet potential collaborators, and explore follow-on pilots, funding, incubation, or co-deployment opportunities.

MEET THE JUDGES

Our judging panel will include leaders from AI research, African languages, fintech, health, public-interest technology, responsible AI, product deployment, and the startup ecosystem.

PARTNERS AND SPONSORS

The Sahara CodeSwitch Africa Challenge is supported by organisations committed to building inclusive voice AI for Africa.

NVIDIA, CLEAR Global, Masakhane, Wema Bank, Branch, ARM, Gooey.AI, Co-creation Hub, PATH and turn.io

PARTNERSHIP OPPORTUNITIES

We are inviting selected partners to support the challenge in three ways.

Become a partner

Amplify

Spread the challenge through your platforms, newsletters, communities, events, social channels, and developer networks.

Judges

Nominate judges per category to evaluate finalists through a technical, sector, language inclusion, responsible AI, product, or deployment-readiness lens.

Named Mission Prize

Contribute from $1,000 to $20,000 to sponsor a named prize aligned with your mission or sector priority.

ABOUT THE HOSTS

Intron’s core technology is speech recognition built for African accents. Intron has created Africa’s largest and most diverse speech dataset, supporting transcription across 700+ African accents, with over 6M+ audio clips contributed by more than 70,000 Africans across 13 countries.
In healthcare, the technology removes the barrier that keeps busy hospitals from digitising: manual keyboard entry. In the judiciary, it reduces the documentation burden on judges during hearings, preserving testimony integrity in an overburdened system. Intron’s Sahara models are in production with partners including Penda Health, ARM, Branch, Carbon, Data.FI, and State High Courts across Nigeria, Kenya, South Africa, and Eswatini.
Learn more at intron.io

About Sahara v2.5

Sahara v2.5 is Intron’s next-generation voice AI release, built around the world’s first bilingual code-switching support across 12 African language pairs, the first African trilingual model, and fluent speech generation in 12 African languages. It launches alongside this challenge in August 2026.

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The next generation of Voice AI by Intron, specifically engineered for Africa’s linguistic diversity.

The Future of African Voice AI

Gain deep insights into the evolving technological landscape with our upcoming 2026 Africa Voice AI Report. The report explores the trends, challenges, and opportunities shaping the future of speech interfaces across the continent.
© 2024 Sahara AI by Intron. Built for the future of Voice.

The Future of African Voice AI

Gain deep insights into the evolving technological landscape with our upcoming 2026 Africa Voice AI Report. The report explores the trends, challenges, and opportunities shaping the future of speech interfaces across the continent.