WizardCoder-15B

Powerful AI for Programmers

What is WizardCoder-15B?

WizardCoder-15B is a 15-billion-parameter open-weight language model specifically optimized for advanced programming and reasoning tasks. Developed for developers and technical users, it excels in code generation, bug fixing, multi-language support, and complex logic comprehension.

It builds on open transformer architecture and is instruction-tuned for real-world coding workflows—making it a go-to model for building intelligent developer tools and AI-powered software engineering assistants.

Key Features of WizardCoder-15B

15B Parameter Code-Optimized Model

Trained on large-scale, high-quality code datasets to master complex logic, functions, and structured programming.

Fully Open-Weight & Accessible

Released with transparent licensing—allowing full customization, fine-tuning, and integration into dev stacks.

Instruction-Tuned for Coding Tasks

Performs exceptionally on prompts involving code completion, transformation, explanation, and generation.

Multi-Language Programming Support

Understands and generates code in Python, JavaScript, C++, Java, Go, TypeScript, and more.

Strong Benchmarks on Code Tasks

Ranks competitively on HumanEval, MBPP, and other code benchmarks for functional correctness and clarity.

Deploy Anywhere with Ease

Runs efficiently on cloud GPUs, workstations, or developer IDE integrations—scalable and flexible.

Use Cases of WizardCoder-15B

Power AI coding assistants, copilot features, or auto-suggestion tools for developers.

Use it to identify issues and propose fixes in large codebases or during development cycles.

Generate inline comments, docstrings, or full documentation from source code automatically.

Embed into IDEs or platforms for auto-completion, translation, and cross-language programming.

Create programming tutors or interactive learning platforms for computer science students.

WizardCoder-15B Comparable Models

Feature	GPT-3.5 Turbo	CodeLLaMA 13B	StarCoder	WizardCoder-15B
Model Type	Dense Transformer	Dense Transformer	Dense Transformer	Dense Transformer
Inference Cost	Moderate	Moderate	Moderate	Moderate
Total Parameters	~175B	13B	15.5B	15B
Programming Support	Moderate	Strong	Strong	Strong+
Code Benchmarks	Moderate	Advanced	Advanced	Advanced+
Licensing	Closed	Open	Open	Fully Open-Weight
Best Use Case	General Chat + Code	Developer Tools	IDE Copilot	Full-Stack Code AI