Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Learning objectives
- Master OpenAI function calls in a professional certifying framework
- Develop intelligent AI agents via function calling 2026
- Design automated workflows integrating external tools and LLM models
- Optimize function performance for enterprise applications
- Implement real-world function calling cases in secure production
- Acquire certifying skills to boost AI productivity
- Deploy scalable OpenAI solutions tailored to business needs
The Learni story
Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.
Don't let this gap widen
Why this program matters
Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.
Organizations that don't train their talents on key topics see their competitiveness drop.
Every quarter without training is a gap widening with competitors who invest.
The cost of inaction quickly exceeds that of well-targeted training.
Program
Module 1OpenAI Function Calling Fundamentals: API Configuration and First Calls (Python Tools, OpenAI SDK)
Discover the evolutions of function calling 2026 via the OpenAI API, configure your Python environment with the official SDK, perform your first simple function calls by testing adapted JSON schemas, analyze structured responses from the GPT model, and produce a first basic agent deliverable connected to an external weather API to validate real-time data flows.
Module 2Advanced OpenAI Function Calling: Complex Schemas and Parallel Tools (JSON Schema Methods, Parallel Tool Calls)
Dive into advanced JSON schemas for function calling 2026, implement parallel calls to multiple tools with the o1-preview model, test use cases like cross-data analysis via third-party APIs, debug parsing errors live, and generate a virtual assistant prototype handling multiple functions simultaneously for concrete business scenarios.
Module 3OpenAI Function Calling Integration: Enterprise Workflows and Security (LangChain Frameworks, OAuth Authentication)
Integrate function calling 2026 into professional workflows using LangChain and LlamaIndex, secure calls with tokens and OAuth2, develop a RAG agent enhanced by external functions for augmented search, simulate integrations with SQL databases, and deliver an interactive dashboard demonstrating AI call traceability in a controlled environment.
Module 4OpenAI Function Calling Optimization: Performance and Scalability (Fine-Tuning, Caching, Prometheus Monitoring)
Optimize function calling 2026 performance through targeted fine-tuning and intelligent caching, monitor costs and latencies with Prometheus and Grafana, scale agents for high loads via Docker, test resilience to network errors, and produce a quantified optimization report on a complete CRM automation case.
Module 5OpenAI Function Calling Deployment: Production and Business Cases (Vercel, AWS Lambda, Certifying Projects)
Deploy your function calling 2026 agents in production on Vercel or AWS Lambda, integrate with enterprise stacks like Salesforce or custom CRMs, review AI governance best practices, finalize a personal certifying capstone project, and benefit from a post-training audit for immediate and cost-effective implementation.
Evaluation method
- Daily interactive quizzes on key concepts
- Final project: functional AI agent deployed
- Qualiopi certifying attestation with deliverables portfolio
Learning method
- 70% hands-on: live coding workshops
- 30% theory: expert feedback sessions
- Exercises tailored to intermediate level
- Unlimited access to replays and post-training resources
Methods, materials and delivery
The Training OpenAI Function Calling 2026 - Mastering Advanced AI Calls program is delivered onsite or remote (blended-learning, e-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
Equipment required
For the smooth delivery of the Training OpenAI Function Calling 2026 - Mastering Advanced AI Calls program, the following equipment is required:
- Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
- Training environments installed on workstations or accessible online
- Course materials, hands-on exercises and complementary resources
- Post-training access to materials and educational resources
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
* contact us for remote delivery feasibility** ratio varies depending on the program
Skills assessment methods
Assessment of skills acquired during the Training OpenAI Function Calling 2026 - Mastering Advanced AI Calls program is performed through:
- During training: case studies, hands-on labs and professional scenarios
- End of training: self-assessment questionnaire and skills evaluation by the trainer
- After training: completion certificate detailing acquired skills
Program accessibility
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Enrollment terms and lead times
Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.
Verified reviews
What our learners
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
Our method
Training quality, guaranteed at every step
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
You meet the trainer beforehand
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
- Live briefing on goals and team context.
- Veto right — we swap the trainer for free if needed.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
- Hands-on cases drawn from your stack and projects.
- Program co-written then validated by your team.
Continuous quality follow-up
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
- NPS, knowledge quizzes and skills self-assessment.
- Satisfaction guarantee: fully satisfied or free rework.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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