Hello Researchers, \ We are pleased to announce the launch of the \*\*Commonsense Persona-grounded Dialogue Challenge (CPDC 2025)\*\* — an opportunity for researchers and practitioners in NLP to advance the state of the art in persona-grounded, task-oriented dialogue systems.\ Following the success of CPDC 2023, this year’s edition introduces a more complex and immersive game-world setting, where conversational agents must produce coherent, persona-consistent responses, while also performing task-oriented actions informed by contextual and commonsense knowledge. The challenge builds on insights from PeaCoK (Persona Commonsense Knowledge for Consistent and Engaging Narratives) — an ACL 2023 Outstanding Paper Award winner; which forms the foundation for the persona modelling in this year’s tasks. Join the challenge \[here\](https://www.aicrowd.com/challenges/commonsense-persona-grounded-dialogue-challenge-2025).\ \ 🔍 \*\*Challenge Overview\*\*\ Participants may choose from three tasks:**-** \*\*Task 1: Task-Oriented Dialogue Response Generation\*\* Generate persona-consistent dialogue and execute function calls based on goals, roles, and context. Evaluates both response quality and action accuracy.\ **-** \*\*Task 2: Commonsense Dialogue Response Generation\*\* Produce natural, context-aware responses grounded in persona, long dialogue history, and shared world knowledge.\ **-** \*\*Task 3: A Hybrid Track evaluating performance across both tasks\*\* Submit once to be evaluated on both Tasks 1 and 2. Build models that balance conversational fluency with task execution.\ Each task features two tracks:**-** \*\*GPU Track\*\*: Full flexibility to train and deploy your own models using any dataset**-** \*\*API Prompt Engineering Track\*\*: Compete using the same API and models; only prompts may vary \ Participants may train models using any dataset of their choice; a small reference dataset is also provided for Tasks 1 and 2. Starter kits and baseline models are available to facilitate onboarding. Explore the tasks in \[more detail\](https://www.aicrowd.com/challenges/commonsense-persona-grounded-dialogue-challenge-2025).\ \ 🧠 \*\*Key Features\*\***-** Rich, persona-driven dialogue scenarios grounded in game environments **-** Role-specific knowledge, function definitions, and common-sense reasoning **-** Unified evaluation framework across all tasks **-** Leaderboards for each task and track, with independent prize pools\ 💰 \*\*Total Prize Pool: $20,000\*\*, distributed across six leaderboards\ 📅 \*\*Timeline\*\***-** Round 1: 20 April 2025 **-** Round 2: 25 May 2025 **-** Final Deadline: 30 June 2025 \ We encourage researchers interested in conversational AI, dialogue modelling, and LLM-based reasoning to take part. Full details, rules, and resources are available on the \[challenge page\](https://www.aicrowd.com/challenges/commonsense-persona-grounded-dialogue-challenge-2025).\ We look forward to your participation.\ Warm regards,